An atom of sodium-23 (Na-23) has a net charge of . Identify the number of protons, neutrons, and electrons in the atom. Then, explain how you determined the number of each type of particle. use the periodic table to help you.

Answer:

A

Explanation:

A liquid will will have the same color, it will not have the same shape and its volume will always be constant because you are not creating mass.

Hope this helps!

Explanation:

Given -

molar mass = 135.13 g/mol

To Find -

Solution:

we know that -

So,

Here empirical mass =

12.01 + 1.008 + 14.01 = 27.028

Then,

135.13 = n × 27.028

n = 4.99 ≈ 5

We know that,

Then,

molecular formula = 5(CHN)

= C₅H₅N₅

Therefore,

Option A is correct✔

Answer:

a. 0.4539g benozic acid

b. 60.29% of benzoic acid in the solid sample

Explanation:

The benzoic acid reacts with NaOH as follows:

C6H5COOH + NaOH → C6H5COONa + H2O

Where 1 mole of the acid reacts per mole of NaOH

The NaCl doesn't react with NaOH

To solve this question we must find the moles of NaOH added = Moles of benzoic acid. With the moles of the acid and its molar mass (C6H5COOH = 122.12g/mol) we can find the mass of the acid and its mass percentage:

a. Moles NaOH = Moles Benzoic acid:

24.78mL = 0.02478L * (0.150mol / L) = 0.003717 moles Benozic acid

Mass benzoic acid:

0.003717 moles Benozic acid * (122.12g / mol) = 0.4539g benozic acid

b. Mass percentage is:

0.4539g / 0.7529g * 100 = 60.29% of benzoic acid in the solid sample

White vinegar typically consists of 93%–96% water and 4–7% acetic acid. It can be used to cooking, bake, cleaning, and get rid of weeds. It can also help you lose weight and lower your blood sugar and cholesterol. Consumption is safe in moderation, but excessive consumption or when combined with certain medications could be harmful.

Apple cider vinegar is widely used in cooking and as a salad dressing because it contains acetic acid and nutrients like vitamins C and B vitamins. But at the same time, it's been utilized customarily as medication. It helps in losing weight.

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Answer:

The heat absorbed in Trial 2 is about 1,240 J greater than the heat absorbed in Trial 1.

The heat absorbed in Trial 2 is about 1,674 J greater than the heat absorbed in Trial 1.

The amount of heat absorbed or released by a substance can be calculated using the formula Q = mcΔT, where Q represents heat, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

In this case, the mass (m) is the same in both trials, but the initial and final temperatures (ΔT) differ. By comparing the values of ΔT in both trials, we can determine the difference in the amount of heat absorbed.

In Trial 1, the initial temperature is 15.0 °C and the final temperature is 65.0 °C, resulting in a ΔT of 65.0 - 15.0 = 50.0 °C.

In Trial 2, the initial temperature is 10.0 °C and the final temperature is 65.0 °C, resulting in a ΔT of 65.0 - 10.0 = 55.0 °C.

Since the specific heat capacity of water is approximately 4.18 J/g°C, we can calculate the difference in heat absorbed:

ΔQ = mcΔT = (80.0 g)(4.18 J/g°C)(55.0 °C - 50.0 °C) = 1,674 J

Therefore, the heat absorbed in Trial 2 is approximately 1,674 J greater than the heat absorbed in Trial 1.

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The difference between oil and flour is oil forms a layer at the top of water, and flour settles at the bottom. The correct option is the third option - Oil forms a layer at the top of water, and flour settles at the bottom

Oil is a triglyceride which is insoluble in polar substances but is soluble in nonpolar solvents. That is, oil is insoluble in water.

Oil, when dissolved in water, forms a layer at the top of water. This is because oil is less dense than water.

Flour is insoluble in water. It settles at the bottom of the container.

Now, we will investigate the options one after the other

O Oil is a soluble substance, and flour is an insoluble substance.

Since oil is soluble in nonpolar solvents, this option is NOT correct.

O Flour is a soluble substance, and oil is an insoluble substance.

Since flour is insoluble in water, this option is NOT correct.

O Oil forms a layer at the top of water, and flour settles at the bottom.

Since oil forms a layer at the top of water and flour settles at the bottom of water, then this option is correct.

O Oil forms a layer at the bottom of water, and flour settles at the top.

Oil does not form a layer at the bottom of water and flour does not settle at the top of water. Therefore, this option is NOT correct.

Hence, the difference between oil and flour is oil forms a layer at the top of water, and flour settles at the bottom. The correct option is the third option - Oil forms a layer at the top of water, and flour settles at the bottom

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Metal extraction is a reduction process because the extracted metal is in a bound state and has a positive valence. The addition of electrons converts cations into atoms or metals.

Metal extraction is always a reductive process. Metals have positive valences in the bound state, and cations are converted to atoms or metals by the addition of electrons. So by definition it is a reductive process.

Example - Mⁿ⁺ + ne⁻ → M

Mining is the process of extracting metal ores buried deep underground. Metal ores occur in varying amounts in the Earth's crust. By extracting metals from ores, minerals in the ground can be used. Ore is very different from the finished metal you see in buildings and bridges. Ore consists of the desired metallic compounds and impurities and a geological material called gangue. The recovery of metals and their separation takes place in several main steps.

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Answer: B

Heat always travels from warmer areas to cooler areas in the form of radiation or convection currents due to the temperature difference. You could kind of think of this movement like diffusion: travelling from a higher concentration to a lower one (if you take biology). This is how a gas heats up a pan on the stove or a radiator warms a room

Answer:

CH4 and CH3 CH2 CH2 CH3

Explanation:

Answer:

CH4 and CH3CH2CH2CH3

Explanation:

its right on edg

Answer:

options B,C and E are correct conditions for forming hydrogen bonds.

Explanation:

In order for particles to stick together or shows certain characteristics, there must be a bond of attractions that is making them to be able to stay together. Some of these attractions are strong while some are weak. The kind of attraction that is being considered in this question  is the hydrogen  bonding which is considered as part of the weak forces of attractions.

In order for hydrogen bonds to occur, there must be hydrogen atoms [option B is correct] and a much more electronegative elements such as oxygen, Fluorine and Nitrogen. Hence, option C is correct.

Since the Fluorine or oxygen or nitrogen have much more electronegative properties than hydrogen, it causes a partial negative charge on  Fluorine or oxygen or nitrogen and a partial positive charge on the Hydrogen. Thus, option E is correct.

The image that is shown contains an organized lesson content.

The following steps should be taken to organize a lesson plan;

Identify the objective: Start by defining the objective of the lesson and what you want your students to learn by the end of it. This will help you create a clear and focused lesson plan.

Gather materials and resources: Identify any materials, resources, or technology you will need for the lesson and gather them ahead of time.

Plan the structure: Determine the flow of the lesson, including any key concepts or ideas you want to cover, and how you will introduce and conclude the lesson.

Consider the pace: Decide on the pace of the lesson, taking into account the attention span of your students, and plan activities that will keep them engaged and on task.

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The atoms have different types of bonds holding molecules together and leads to evaporation.

Thus, A crucial stage in the Earth's water cycle is evaporation, which is the process by which water transforms from a liquid to a gas or vapor. Evaporation at the molecular level requires the interface to break at least one extremely strong intermolecular connection between two water molecules.

The chemical mechanism by which an evaporating water molecule acquires sufficient energy to escape from the surface has remained mysterious despite the significance of this activity.

Here, we demonstrate that the high kinetic energy of the evaporated water molecule is enabled by a precisely timed formation and dissolution of hydrogen bonds involving at least three water molecules at the interface, the recoil of which allows one water molecule to escape.

Thus, The atoms have different types of bonds holding molecules together and leads to evaporation.

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Answer:

there is two mixture homogeneous and heterogeneous mixture

ok

Answer:

Explanation:

The protein comprises of two 60-kD polypeptides and two 40-kD polypeptides. Each one of the 40-kD chains has a disulfide-bond, which is directly bonded to a 60-kD chain.

The 100-kD units attach noncovalently to produce a protein with a molecular mass of 200 kD.

The protein consists of 200 kD in size, and the Gel filtration doesn't affect the relationship and interaction among the various subunits in the protein.

When SDS-PAGE takes place, samples are being subjected to boiling of samples and therefore undergoing denaturation conditions. The result causes disorganization in the 100 kD units.

It implies that BME is responsible for the reduction between the R1-S-S-R2 bond between 40 kD and 60 kD to R1-SH and R2-SH, resulting in separate proteins.

However, the reducing agent (BME) main task is reducing disulfide bonds in a protein.

The theoretical yield  of the precipitate is  1185 g and the balanced reaction equation is; \(3Pb(NO_{3} )_{2} (aq) + Ni_{2} (SO_{4}) _{3} (aq) -------- > 2Ni(NO_{3} )_{3}(aq) + 3PbSO_{4}(s)\)

We know that the term chemical reaction equation has to do with the interaction that exists between reactants and product. Now we know that a balanced reaction equation ought to have the same number of atoms of each of the elements that were combined in the reaction.

We have the balanced reaction equation as;

\(3Pb(NO_{3} )_{2} (aq) + Ni_{2} (SO_{4}) _{3} (aq) -------- > 2Ni(NO_{3} )_{3}(aq) + 3PbSO_{4}(s)\)

Now;

Number of moles of nickel III sulfate = 531 g/406 g/mol = 1.31 moles

Number of moles of lead II nitrate = 3.91 moles

Since 3 moles of nitrate reacts with 1 mole of the sulfate

x moles of the nitrate reacts with 1.31 moles of the sulfate

x = 3.93 moles

Thus  lead II nitrate is the limiting reactant.

If 3 moles of the nitrate produces 3 moles of the precipitate then

Theoretical yield = 3.91 moles  * 303 g/mol

= 1185 g of precipitate

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Answer:

causes destruction

Answer:

There are 6

Explanation:

The significant figures in that number are  5 4 0 0 4 7

Hope this helps:)

Awnser: The awnser is cloudy

Explanation: I don't have an explanation I just know it

The balanced NET ionic equation is

Al(OH)3 ----> Al3+(aq) + 3OH(aq) (s)

When AICI and NaOH are combined in an aqueous solution, the following balanced NET ionic equation describes the reaction:

Al(OH)3 -----> Al3+(aq) + 3OH(aq) (s)

An exchange reaction occurs when AICI and NaOH are combined.

Al(OH)3(s) + 3NaCl(aq) -----> AlCl3(aq) + 3NaOH(aq) (1)

In this reaction, the ions Al+3 and Na+ exchange Cl- and OH- ions.

The total ionic equation must first be written in order to create the NET ionic equation:

AI(OH)3(s) + 3Na+(aq) + 3Cl(aq) + Al3+(aq) + 3Cl(aq) + 3Na+(aq) + 3OH (aq) (2)

Since the Al(OH), precipitates, we are unable to describe it as an ion because the aqueous solution does not allow for its dissociation.

The following is the net ionic equation for reaction

Al3+(aq) plus 3OH-(aq) leads to Al(OH)3(s)

The net ionic equation excludes all repeating ions from reactants and products. We eliminated the Na+ and Cl- ions from the net ionic equation because of this

The balanced net ionic equation is as follows:

Al(OH)3 ----> Al3+(aq) + 3OH(aq) (s)

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Answer: Sound waves

The wave pattern that i observed in sound waves are longitudinal wave patterns.

The mathematical graph function looks like is a sine function graph. The pattern that i observed in the amplitude of the wave is longitudinal wave pattern

When you increase the frequency of the sound waves the wave moves faster but the wavelength becomes shorter. The higher the frequency results in higher the pitch of the sound.

If you increase the frequency the velocity of the sound wave remains constant for all valuses of frequencies.

i am currently completing this assigment. i am not usre if the answer are correct but i tried my best  

I also got this from course hero it's your choise to put the one you want.

The wave pattern is identical to the pattern of the water. The graph is the same as the water except the wave height isn’t as big. Increasing the frequency increases the wavelength. Increasing the frequency also increases the velocity of the waves by a lot. With two sources the waves pass through each other. The wave pattern with a single slit barrier is the same as the water pattern.

Explanation:

Answer: Sound waves

The wave pattern that i observed in sound waves are longitudinal wave patterns.

The mathematical graph function looks like is a sine function graph. The pattern that i observed in the amplitude of the wave is longitudinal wave pattern

When you increase the frequency of the sound waves the wave moves faster but the wavelength becomes shorter. The higher the frequency results in higher the pitch of the sound.

If you increase the frequency the velocity of the sound wave remains constant for all valuses of frequencies.

i am currently completing this assigment. i am not usre if the answer are correct but i tried my best  

I also got this from course hero it's your choise to put the one you want.

The wave pattern is identical to the pattern of the water. The graph is the same as the water except the wave height isn’t as big. Increasing the frequency increases the wavelength. Increasing the frequency also increases the velocity of the waves by a lot. With two sources the waves pass through each other. The wave pattern with a single slit barrier is the same as the water pattern.

Explanation:

Answer:

It's because they aren't destroyed they're just rearranged differently to create different products. There's like a name for this. It's something like the law of conservation energy. But the reason is mass cannot be created nor can it be destroyed.

Answer:

Atoms don’t appear or disappear during the reaction. Instead, they get rearranged.

Explanation:

Exact answer from Plato/Edmentum!! :)

It is most likely Option A: that a chemical change occurred in step 1 and a physical change occurred in step 2.

In step 1, the yellow particles appeared in the liquid, indicating a chemical change. This could be a result of a chemical reaction between the two colorless liquids, or the addition of a reagent that caused a reaction. This change is characterized by the formation of new substances, which are the yellow particles.

In step 2, the colorless liquid was separated from the yellow particles by decantation. Decantation is a physical process that separates immiscible liquids or solid particles from a liquid by allowing them to settle and then carefully pouring off the liquid.

Therefore, This change is characterized by the separation of components of a mixture, no new substances are formed.

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Answer:

the normality of the given solution is 0.0755 N

Explanation:

The computation of the normality of the given solution is shown below:

Here we have to realize the two sodiums ions per carbonate ion i.e.

N = 0.321g Na_2CO_3 × (1mol ÷ 105.99g)×(2eq ÷ 1mol)

= 0.1886eq ÷ 0.2500L

= 0.0755 N

Hence, the normality of the given solution is 0.0755 N

The total mass of the balloon and its content is 1521.17 g, the number of moles of CO₂ in the balloon is 34.15 mol, and the number of CO₂ molecules in the balloon is 2.06 x 10²⁵ molecules.

a) The molar mass of CO₂ is 44.01 g/mol. To find the total mass of the balloon and its content, we need to add the mass of the balloon (20g) to the mass of the CO₂ inside the balloon.

Mass of CO₂ = number of moles of CO₂ x molar mass of CO₂

Since the balloon is at STP (standard temperature and pressure), we can use the molar volume of a gas at STP (22.4 L/mol) to find the number of moles of CO₂ in the balloon:

Volume of CO₂ = Volume of balloon = 765 L (at STP)

Number of moles of CO₂ = volume of CO₂ / molar volume of a gas at STP

                                          = 765 L / 22.4 L/mol

                                          = 34.15 mol

Mass of CO₂ = 34.15 mol x 44.01 g/mol

                       = 1501.17 g

Total mass of balloon and its content = 20 g + 1501.17 g

                                                               = 1521.17 g

b) Number of moles of CO₂ in the balloon is 34.15 mol

c) To find the number of CO₂ molecules in the balloon, we need to use Avogadro's number (6.02 x 10²³ molecules/mol).

Number of CO₂ molecules = number of moles of CO₂ x Avogadro's number

                                           = 34.15 mol x 6.02 x 10²³ molecules/mol

                                           = 2.06 x 10²⁵ molecules

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Answer:

3

Explanation:

Answer:

The amount of groundwater is decreasing.

Explanation:

In an ecosystem like the state of Georgia where the water table has become lower it means that the amount of groundwater in the ecosystem is decreasing.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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