Rank the molecules in order of their bond angles (smallest to largest): Beryllium Chloride, Nitrogen Chloride, Carbon Chloride
Answers
Answer:
Beryllium chloride is linear so its bond angle is 180°.
Nitrogen chloride is trigonal-pyramidal so its bond angle is 107.3°.
Carbon chloride is tetrahedral so its bond angle is 109.5°.
The order is nitrogen chloride, carbon chloride, beryllium chloride.
Related Questions
Are two atoms of the same element identical?
Answers
Answer:
No It is not
Two of the same atoms are most likely not identical
Energy changes WITHIN an energy type is called what?
Answers
Answer:
What is energy transformation? One type of energy can change into another type of energy. Energy transformation means the changing of energy from one type to another, e.g. from kinetic energy to electrical energy, or from potential energy to kinetic energy.
Explanation:
Answer:
It may seem a bit weird, but, I'm only doing this so that you can make that other person brainliest.
Explanation:
A tank initially contains 60 gal of pure water. Brine containing 1lb of salt per gallon enters the tank at 2gal/min, and the (perfectly mixed) solution leaves the tank at 3gal/min; thus the tank is empty after exactly 1 hour. Let y(t) be the amount of salt in the tank after t minutes. (a) Write an Initial Value Problem for the amount of salt in the tank at any time t<60). (b) Solve the IVP in part (a) to find the amount of salt in the tank at any time t<60). (c) Determine the amount of salt when the tank is half empty.
Answers
(a) Writing an Initial Value Problem for the amount of salt in the tank at any time t<60)Initial Value Problem (IVP) is a differential equation accompanied by initial conditions. The differential equation we will use is:
y′(t) = 2(1 − y(t)/V) − 3y(t)/Vwhere V is the volume of the tank and y(t) is the amount of salt in the tank at time t. The initial condition will be y(0) = 0(b) Solving the IVP in part (a) to find the amount of salt in the tank at any time t<60)To solve this differential equation, we can use the integrating factor method. The integrating factor is:
IF = e^(3t/V)Multiplying both sides by the integrating factor, we get:e^(3t/V) y′(t) + 3/V e^(3t/V) y(t) = 2e^(3t/V) − 2y(t)/V(e^(3t/V) y(t))′ = 2e^(3t/V)We integrate both sides with respect to t:(e^(3t/V) y(t)) = (2/3) e^(3t/V) + Cwhere C is the constant of integration. Using the initial condition, we find that:C = (2/3) e^0 = 2/3Therefore, the solution is:e^(3t/V) y(t) = (2/3) e^(3t/V) + (2/3)e^0y(t) = (2/3) + (2/3)e^(-3t/V)(c) Determining the amount of salt when the tank is half emptyThe tank is half empty when there is 30 gallons of solution in it. Since the tank is emptied in one hour, this happens when there is 30 gallons of brine in the tank. Therefore, the amount of salt in the tank when it is half empty is:y(60) = (2/3) + (2/3)e^(-3 × 60/V)We need to find V to solve for y(60). We know that the tank starts with 60 gallons of water, and 1 gallon of brine enters every minute and 3 gallons of solution leave every minute. Therefore, the volume of the tank is:
V = 60 + (1 − 3) t = 60 − 2tWhen t = 60, V = 60 − 2 × 60 = −60Therefore, the tank does not have a volume of −60. Instead, the problem has an error.About SaltSalt is a collection of chemical compounds with the main component Sodium Chloride (NaCL) being the same as table salt. The process of making salt in Indonesia is generally by evaporating seawater using sunlight or other heat sources. Salt is made by collecting seawater and then evaporating it with sunlight so that only the salt crystals remain. Traditional salt making is by channeling seawater into ponds with the help of windmills.Apart from being a natural preservative, salt also has many other benefits. As for some of the benefits of salt for the body is to help the digestive system. Salt is believed to help the digestive system because salt can stimulate the digestive enzymes chloride and protein which help digestion.
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how many moles of cellulose (c6h12o6 ) do you need to make 1.2 moles of methane (ch4)? round to the nearest hundredth
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To determine how many moles of cellulose are needed to make 1.2 moles of methane, we need to first balance the chemical equation for the reaction. The balanced equation is:
C6H12O6 → 3CO2 + 3CH4
From the balanced equation, we can see that for every 3 moles of methane produced, we need 1 mole of cellulose. Therefore, to make 1.2 moles of methane, we need:
1.2 moles CH4 x (1 mole C6H12O6/3 moles CH4) = 0.40 moles C6H12O6
So, we need 0.40 moles of cellulose to make 1.2 moles of methane. Rounded to the nearest hundredth, this is 0.40 moles.
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If 1.9 g of oxygen gas (O2) occupies a volume of 100 L at a particular temperature and pressure, what volume will 5.00 g of oxygen gas occupy under the same conditions?
Answers
To solve this problem, we can use the ideal gas law, which relates the pressure, volume, temperature, and number of moles of a gas.
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.
Since we are dealing with the same gas (oxygen) at the same temperature and pressure, we can assume that the value of R is constant. Therefore, we can write:
PV/n = RT
The ratio PV/n is known as the molar volume of the gas, and is constant for a given temperature and pressure. We can use this relationship to find the volume of oxygen gas that corresponds to 5.00 g.
First, we need to calculate the number of moles of oxygen gas in 1.9 g:
n = m/M
where m is the mass of the gas and M is the molar mass of oxygen, which is 32 g/mol.
n = 1.9 g / 32 g/mol
n = 0.059375 mol
The molar volume of oxygen gas at the given temperature and pressure is:
PV/n = RT/n
V/n = RT/P
Substituting the given values, we get:
V/n = (0.0821 L·atm/mol·K) x (273 K) / (1 atm)
V/n = 22.414 L/mol
Therefore, the volume of 1.9 g of oxygen gas is:
V1 = n x V/n = 0.059375 mol x 22.414 L/mol = 1.331 L
Now we can use the molar volume to find the volume of 5.00 g of oxygen gas:
n = m/M = 5.00 g / 32 g/mol = 0.15625 mol
V2 = n x V/n = 0.15625 mol x 22.414 L/mol = 3.51 L
Therefore, 5.00 g of oxygen gas will occupy a volume of 3.51 L at the same temperature and pressure as 1.9 g of oxygen gas.
What is the density of nitrogen gas if 0.256g occupies a volume of 100mL?
Answers
Answer:
The answer is 0.00256 g/mLExplanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\ \)
From the question we have
\(density = \frac{0.256}{100} \\ \)
We have the final answer as
0.00256 g/mLHope this helps you
A tablespoon of baking powder is added to 300g of water in a sturdy bottle and the lid is sealed tightly. The reaction of baking powder produces CO2. The reaction is endothermic.
3 NaHCO3 + NaAl(SO4)2 → Al(OH)3 + 2 Na2SO4 + 3 CO2
What are 2 things you can do to produce more carbon dioxide? You can add any chemical to the bottle, increase or decrease the pressure in the bottle, or increase or decrease the temperature.
Answers
To produce more carbon dioxide in this reaction increase the temperature or add more baking powder.
How does increasing temperature and baking powder increase carbon dioxide?Add more baking powder: Adding more baking powder to the water will increase the amount of reactant available, leading to a greater production of carbon dioxide.Increase the temperature: Since the reaction is endothermic, increasing the temperature will drive the reaction to produce more carbon dioxide as the reaction absorbs heat. This is due to Le Chatelier's principle, which states that a system at equilibrium will respond to a stress in a way that counteracts that stress. In this case, the added heat will cause the reaction to shift towards the products, producing more carbon dioxide.It's worth noting that increasing the pressure in the bottle would not have a significant effect on the production of carbon dioxide, as the reaction is not affected by pressure. Decreasing the pressure would only cause the carbon dioxide to escape more quickly from the bottle.
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ally completed part b of experiment iht. they labeled their system as the dissolution of salt and their surroundings as water. if ally recorded a increase in temperature after adding salt, was the reaction endothermic or exothermic in regards to their system? how do we know whether it was endothermic or exothermic?
Answers
If the temperature drops, an endothemic response is occurring.
Exothermically or endothermally does salt dissolve?endothermic
As a result, dissolving table salt in water is endothermic. The only chemical reaction that can be either exothermic or endothermic is the dissolving of salts in water.
Why does a salt occasionally dissolve endothermically and occasionally exothermically?Exothermic or endothermic dissolving of a salt depends on which of the two energies, lattice or hydration, is larger. The quantity of energy released per unit of salt is often expressed in terms of kilocalories per mole (kcal/mol) or kilojoules per mole (kJ/mol).
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Determine the approximate density of a high-leaded brass that has a composition of 64.5 wt% Cu, 34.5 wt% Zn, and 1.0 wt% Pb. The densities of Cu, Zn, and Pb are 8.94, 7.13 and 11.35 g/cm3, respectively.
Answers
The approximate density of the high-leaded brass is approximately 836.12 g/cm3.
The density of a high-leaded brass can be determined by calculating the weighted average density of its constituent elements.
To do this, we need to consider the weight percentages and densities of copper (Cu), zinc (Zn), and lead (Pb). The given weight percentages are 64.5 wt% Cu, 34.5 wt% Zn, and 1.0 wt% Pb.
The density of Cu is 8.94 g/cm3, the density of Zn is 7.13 g/cm3, and the density of Pb is 11.35 g/cm3.
To find the approximate density of the high-leaded brass, we can use the formula:
Density = (Cu density * Cu weight %) + (Zn density * Zn weight %) + (Pb density * Pb weight %)
Substituting the given values:
Density = (8.94 * 64.5) + (7.13 * 34.5) + (11.35 * 1.0)
Simplifying the equation:
Density ≈ 577.83 + 246.94 + 11.35
Density ≈ 836.12 g/cm3
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how much heat is released when 54.0 grams of glucose is burned?
Answers
Total, -920 kJ of heat would be released when 54.0 grams of glucose is burned.
To determine the amount of heat released when 54.0 grams of glucose is burned, we need to know the heat of combustion or the heat of reaction for the combustion of glucose.
The balanced equation for the combustion of glucose (C₆H₁₂O₆) is;
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
To calculate the heat released, we need the molar mass of glucose and the heat of combustion per mole of glucose.
The molar mass of glucose (C₆H₁₂O₆) is;
(6 × atomic mass of carbon) + (12 × atomic mass of hydrogen) + (6 × atomic mass of oxygen)
= (6 × 12.01 g/mol) + (12 × 1.01 g/mol) + (6 × 16.00 g/mol)
= 180.18 g/mol
Next, we need to find the heat of combustion per mole of glucose. The heat of combustion of glucose is approximately -2800 kJ/mol.
Now we can set up the calculation;
54.0 g of glucose × (1 mol / 180.18 g) × (-2800 kJ/mol) = -920 kJ
The negative sign indicates that heat is being released during the combustion process. Therefore, approximately 920 kJ of heat would be released when 54.0 grams of glucose is burned.
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When did dmitri mendeleev create the periodic table?.
Answers
Dmitri Mendeleev created the first version of the periodic table in 1869. He organized the known elements based on their atomic weights and properties, arranging them in order of increasing atomic weight and grouping them according to their similar properties.
Mendeleev's periodic table had gaps, as some elements had not yet been discovered at the time, but he accurately predicted the properties of these missing elements based on their position in the table.
Mendeleev's periodic table was a major breakthrough in chemistry, as it provided a framework for understanding the behavior of elements and predicting the properties of new elements. His periodic table has since been refined and expanded upon, but the basic structure and organization remain the same.
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Please show all work:
If 40.0 grams of magnesium is reacted with an excess of nitric acid, HNO 3 , how many
grams of hydrogen gas will be produced?
Answers
3.3 g of hydrogen gas will be produced.
What is Stoichiometry ?Stoichiometry helps to measure quantitative relationships between the amounts of products and reactants that are given in a reaction.
What is Balanced Chemical Equation ?The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.
Now we have to write the balanced equation
Mg + 2HNO₃ → Mg(NO₃)₂ + H₂
According to Stoichiometry
\(40.9\ \text{g Mg} \times \frac{1\ \text{mol Mg}}{24.31\ \text{g Mg}} \times \frac{1\ \text{mol}\ H_2}{1\ \text{mol Mg}} \times \frac{2.02\ g\ H_2}{1\ \text{mol}\ H_2}\)
= 3.3 g H₂
Thus from the above conclusion we can say that 3.3 g of hydrogen gas will be produced.
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what element can be found in both plays and stories
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The element that can be found in both plays and stories is "characters."
Characters are an essential element of both plays and stories. They are the individuals or entities that drive the narrative, interact with each other, and contribute to the development of the plot. In plays, characters are typically portrayed by actors who perform their roles on stage, while in stories, characters are described and depicted through written words.
Characters can be central or supporting figures in a play or story, and they play a vital role in engaging the audience or readers. They have distinct personalities, motivations, and relationships that influence the events and conflicts within the narrative. Through their actions, dialogue, and character development, they contribute to the overall themes and messages conveyed by the play or story.
Whether it is a theatrical production or a written narrative, the presence and portrayal of characters are fundamental to creating engaging and compelling plays and stories.
Thus, the element that can be found in both plays and stories is "characters."
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the unknown metal ion gave a violet flame test, no precipitate with ammonium carbonate. what is the unknown metal?
Answers
The unknown metal is Iron.
Let the unknown metal be X.
When X reacts with ammonium carbonate a violet colour flame is produced. The violet colour is formed due to the metal iron. Iron reacts with ammonium carbonate to form iron carbonate with NH₄.
The balanced chemical reaction is given as :
Fe + (NH₄)₂CO₃ → Fe₂CO₃ + NH₄
This reaction shows positive result to the violet flame gas test.
Hence, the unknown metal which gives a violet flame test and no precipitate is formed with ammonium carbonate is Iron (Fe).
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A treasure chest is full of coins. The chest has a volume of 2.25L. The coins have a combined mass of 48kg. Calculate the density of the coins to determine which metal they’re made of. Which metal are they?
a. Silver: 10.5 g/mL
b. Lead: 11.3 g/mL
c. Bronze: 8.7 g/mL
d. Gold: 19.3 g/mL
Answers
The density of the coin, given the data from the question is 21.33 g/mL.
What is density?The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as
Density = mass / volume
How to determine the density of the coinFrom the question given above, the following data were obtained:
Volume of coin = 2.25 L = 2.25 × 1000 = 2250 mLMass of coin = 48 Kg = 48 × 1000 = 48000 gDensity of coin =?Density = mass / volume
Density = 48000 / 2250
Density = 21.33 g/mL
How to determine the metalThe density of the coin obtained, given the data from the question is 21.33 g/mL
Considering the options given, the density of the metal is not specified.
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For strong electrolytes, i = number of per mole of solute dissolved. CaCl dissolves yielding three ions, one Ca ion and two Clions, thus i = (NH. ),P dissolves yielding four ions, three NH' ions and one Pion, thus i = "Colligative Properties Study Guide" by Montgomery College is licensed under CC BY 4. 0
Answers
The statement you provided refers to the determination of the van't Hoff factor (i) for strong electrolytes. The van't Hoff factor represents the number of ions produced per mole of solute dissolved in a solution.
For example, when calcium chloride (CaCl2) dissolves, it dissociates into three ions: one Ca2+ ion and two Cl- ions. Therefore, the van't Hoff factor (i) for CaCl2 is 3 because it produces three ions per mole of solute dissolved.
Similarly, when ammonium phosphate (NH4)3PO4 dissolves, it dissociates into four ions: three NH4+ ions and one PO43- ion. Thus, the van't Hoff factor (i) for (NH4)3PO4 is 4 because it yields four ions per mole of solute dissolved.
The van't Hoff factor is essential in various calculations related to colligative properties, such as boiling point elevation and freezing point depression, where it is used to account for the number of particles in solution.
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Why are rocks not alive
Answers
What Are Living Rocks? Rocks themselves are not alive. But in a coral reef rock-like lime substance is continually produced from the skeletons of dead rock corals and the shells of mussels and other creatures which are bound together by sponges and calcareous algae.
but tbh I have no idea lol!
Based on the balanced equation : 2 K + Cl2 → 2 KCl If you start with 4 K, how many KCl can you make?
Answers
The law of conservation of mass is obeyed by a balanced chemical equation. The number of moles of KCl produced from 4K is 4KCl.
What is a balanced chemical equation?An equation in which the amount of the reactants and products on both sides of the reaction are equal is defined as the balanced chemical equation. In a balanced equation the number of atoms of each element is same on both sides.
According to the law of conservation of mass, mass can neither be created nor be destroyed. All the balanced chemical equation satisfies this law.
Here when 4K is used the amount of KCl produced is given as:
4K + 2Cl₂ → 4KCl
Here there are 4 'K' atoms and 4 'Cl' atoms. Hence the number of the respective atoms are equal on both sides of the equation.
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Which of the following is an example of a ground in a building?
A. A metal rod in the air
B. A pipe to the ground
C. An extra electrical cord
D. A plastic rod
I'll give brainliest to whoever gives the correct answer :D
Answers
Answer:
The answer is B
Explanation:
A pipe to the ground
1.4 Name three properties of discrete Fourier transform (DFT)
Answers
To summarize, the three properties of DFT include periodicity, time-shift, and linearity. The DFT is an important mathematical tool for signal processing, and it is utilized to transform a discrete-time sequence from the time domain to the frequency domain.
The three properties of Discrete Fourier Transform (DFT) are as follows:Periodicity: The discrete Fourier transform has a periodicity that is equal to the length of the data sequence. For example, if the DFT of a sequence of N points is performed, the resulting transform will repeat itself after N points of frequency or spectral information have been computed.Time-shift: The discrete Fourier transform is sensitive to the time shift of a sequence. For instance, the DFT of a time-shifted signal is a complex exponential multiplied by the DFT of the original sequence.Linearity: The discrete Fourier transform satisfies the principle of superposition. It implies that if two separate inputs x(n) and y(n) are given, then the transform of the sum of these two inputs is equal to the sum of the transform of the two inputs.To summarize, the three properties of DFT include periodicity, time-shift, and linearity. The DFT is an important mathematical tool for signal processing, and it is utilized to transform a discrete-time sequence from the time domain to the frequency domain.
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can you identify an atom without knowing number of neutrons in it?
Answers
Answer:
yes
Explanation:
to identify an atom you need to know either it's atomic number or it's proton number
while the neutron is used to determine it's atomic mass
If you run a particular reaction, and in theory it was supposed to yield 50.0 grams of product, and the percent yield is 75%, how many grams did you actually end up with?
Answers
Answer:
37.5 grams
Explanation:
The percent yield shows how much of the reactant have been converted to product. The percent yield is the ratio of actual yield to theoretical yield multiplied by 100%. It is given by the formula:
%yield = Actual yield/ theoretical yield × 100%
Given that theoretical yield = 50 grams and the percent yield is 75%.
Using the formula and substituting:
75% = Actual yield/ 50 g × 100%
75% / 100% = Actual yield / 50 g
0.75 = Actual yield / 50 g
Actual yield = 0.75 × 50 g
Actual yield = 37.5 grams
Given a solid mixture containing sodium chloride, magnesium oxide and benzoic acid. i. Design a scheme to successfully separate and collect each component of the mixture.
Answers
Answer:
filtration and Chromatography
Explanation:
The first method used for separation of solids from the mixture is filtration. Filtration is used to separate different solids in a mixture which has particles of different sizes. Other method is Chromatography in which the compounds in the mixtures are separated from each other by moving the mixture at high speed. Due to high speed, the compounds are separated from each other because different compounds have different speeds so it is separated easily.
HELP ASAP PLSSS 3 AND 4
Answers
Answer:
both parents traits and genes
A metal can is able to withstand 3,800 kPa before it bursts. The gas in the can has a volume of 235 mL and the pressure is 110 kPa at 25°C. If the can is crushed to a volume of 8. 5 mL and the temperature does not change will it burst? What is the pressure of the gas in the can?
Answers
The pressure of a gas is directly proportional to its volume, according to Boyle's Law. this pressure is less than the maximum pressure that the can can withstand (3,800 kPa), the can will not burst.
Therefore, we can use the following equation to find the pressure of the gas in the can after it is crushed: P1V1 = P2V2 where P1 and V1 are the initial pressure and volume of the gas, and P2 and V2 are the final pressure and volume of the gas, respectively. Given that the initial volume (V1) of the gas in the can is 235 mL and the initial pressure (P1) is 110 kPa, we can substitute these values into the equation P1V1 = P2V2 110 kPa × 235 mL = P2 × 8.5 mL Solving for P2, we get: P2 = (110 kPa × 235 mL) / 8.5 mL P2 = 3,027 kPa Therefore, the pressure of the gas in the can after it is crushed to a volume of 8.5 mL is 3,027 kPa. Since this pressure is less than the maximum pressure that the can can withstand (3,800 kPa), the can will not burst.
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Consider the unbalanced equation for the oxidation of butene. C4H8 + 6O2 Right arrow. CO2 + H2O For each molecule of C4H8 that reacts, how many molecules of carbon dioxide and water are produced? Group of answer choices 2 CO2 & 2 H2O 4 CO2 & 4 H2O 2 CO2 & 4 H2O 4 CO2 & 2 H2O
Answers
Which answer below correctly identifies the type of change and the explanation for the boiling of water?
physical change because even though the change caused the temperature of the water to
increase, the water's physical properties remained exactly the same
physical change because even though gas formation was observed, the water was undergoing a
state change, which means that its original properties are preserved
chemical change because gas formation was observed, which indicated that the water was
transformed into a different substance
chemical change because a temperature change was observed, which indicated that the water
was transformed into a different substance
Answers
because the molecule is changing physical states(water to steam) when a chemical change is when two molecules bind together to form a new molecule
How are ancient CO2 levels measured?
Answers
Answer:
Ancient CO₂ levels can be measured from
1) Air bubbles trapped in deep ancient ice cores (up to 800,000 years ago) or
2) Tree rings (up to 10,000 years ago)
Explanation:
The percentages of CO₂ concentration in the atmosphere from previous or ancient times are found by analyzing the CO₂ content in trapped air located in the deep ancient ice cores present in Antarctica and Greenland such as the EPICA Dome C cores
As the ice is drilled though, the air released from trapped bubbles are captured for analysis and the time frame for the captured bubbles can date back up to 800,000 years
Ancient CO₂ levels can also be measured from tree rings which provide ancient CO₂ levels up to 10,000 years
What is anaerobic respiration explain in your own words pleaseeee and don’t answer for points because I will report you
Answers
Answer:
Breaking down of food substances without oxygen
Explanation:
The release of energy by breaking down food substances in the absence of oxygen
one natural source of carbon dioxide.
Answers
Answer: decomposing biomass