Acids and bases release what kind of ions in water?

Answer:

A

Explanation:

i think A is correct answer because

A has 8 Electrons& Protons

and it's electronic configuration ns² np⁶.

which allow it to gain 2 electrons to reach stability.

Below is the balanced chemical equation. 1.07 103 kilograms of carbon dioxide will be created. Every balanced chemical equation adheres to the principle of mass conservation.

A chemical equation is said to be balanced if the quantity of each type of atom in the reaction is the same on both the reactant and product sides. In a balanced chemical equation, the mass and the change are both equal.

Every balanced chemical equation follows the law of conservation mass , according to the information provided.

The total number of individual atoms on the reactant side and the total number of individual atoms on the product side must match,

according to this law.

The balancing chemical for the indicated reaction equation follows:

C₃H₈+5O₂→3CO₂=4H₂O

All the substances are present in gaseous state.

By Stoichiometry of the reaction:

1 mole of propane gas produces 3 moles of carbon dioxide gas.

So, 3.65 moles of propane gas will produce =  of carbon dioxide gas.

Now, calculating the mass of carbon dioxide using equation:

3/1×3.65

=10.95

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = 24.33 mol

Putting values in above equation, we get:

10.95=Mass of carbon dioxide÷44g/mol

         =4.50×10³g

Hence, the amount of  produced in the given reaction and expressed in scientific notation is 4.50×10³

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The statement that describes the particles that make up the rigid structure of a three-dimensional crystalline solid is:

Solids are one of the three states in which matter exists.

Solids are characterized by their having definite shapes and volumes.

Solids have definite shapes and volumes because of the arrangement of the particles in a solid.

The intermolecular forces of the particles in a solid are very strong such that the particles are not free to move but  vibrate about a fixed position.

Thus, they are arranged in rigid continuous patterns as seen in solid crystals.

In conclusion, the particles in a crystalline solid are arranged in regular repeating patterns forming a three-dimensional structure.

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Based on the vital signs provided, the nurse should hold Digoxin when caring for the client on the cardiac unit.

Digoxin is a medication commonly prescribed to treat heart conditions, such as atrial fibrillation and heart failure. However, it can cause adverse effects on the heart and other organs if the dose is not carefully monitored, especially if the client's vital signs are not within a certain range. In this case, the client's blood pressure is lower than the normal range, which can indicate hypotension. Digoxin can further lower blood pressure and cause adverse cardiac effects in clients with low blood pressure. Therefore, the nurse should hold the medication and contact the healthcare provider to adjust the dosage or withhold the medication until the client's blood pressure stabilizes.

It is crucial for nurses to monitor their client's vital signs before administering medications, especially for clients on the cardiac unit. Vital signs, such as blood pressure, heart rate, and temperature, provide valuable information about the client's health status and can help identify potential adverse effects of medication. In this scenario, the nurse correctly identified that the client's low blood pressure warrants holding Digoxin. By doing so, the nurse can prevent adverse events and promote the client's safety and well-being.

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Answer:

82.1 kilograms

Explanation:

divide 181 by 2.205 to convert

Answer:

When a car is parked in hot sunlight, the temperature of the car’s seats  

increases  and the thermal energy of the seats  increases .

Explanation:

Answer:

6 dinosaurs

Explanation:

remaining toys the kid will have are 6 stickers and 1 toy soldier.

Answer:

propyl

1-propylmethane or 2-methylpropane

Answer: the answer for this question is in the pic

Explanation:

The energy (E) of a particle can be expressed in terms of the wave number (k) using the equation E = ħk²/2m, where ħ is the reduced Planck's constant and m is the mass of the particle.

In quantum mechanics, the energy of particles is expressed by their wave numbers. When a particle's momentum (p) is known, the wave number (k) of the particle may be calculated using the Planck constant (h). Relationship between relativistic energy and momentum:

\(E^2 = (pc)^2 + (mc^2)^2\), where c is the speed of light and m is the particle's mass\(. E^2 = (hc*k)^2 + (mc^2)^2\) when \(p = hk. E = sqrt((hc*k)^2 + (mc^2)^2).\)

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Answer:

We can use Gay-Lussac's Law to solve this problem, which states that the pressure of a gas is directly proportional to its temperature, provided the volume and the number of moles of the gas are constant.

Using this law, we can write:

P1/T1 = P2/T2

where P1 is the initial pressure, T1 is the initial temperature, P2 is the final pressure, and T2 is the final temperature.

Substituting the given values, we get:

P1 = 106 kPa

T1 = 47°C + 273.15 = 320.15 K

T2 = 77°C + 273.15 = 350.15 K

So, P2/T2 = P1/T1

P2 = P1 × (T2 / T1)

P2 = 106 kPa × (350.15 K / 320.15 K) = 115.44 kPa

Therefore, the new pressure of the hydrogen gas will be 115.44 kPa when it is heated to 77°C at constant volume.

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The given statement "Carbon in the ocean originates from the atmosphere" is true because Carbon is one of the most vital elements on Earth and is involved in various biogeochemical cycles, including the carbon cycle.

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The correct question would be as

Carbon in the ocean originates from the atmosphere. Please select the best answer from the choices provided. True or False

Rutherford's model of atom could not explain chemical properties as it did not make any mention as to how chemical changes take place.

These properties are defined as those properties which become evident during or after a chemical reaction after the identity of the substance is changed during chemical reaction.

These properties cannot be determined externally just by viewing the substance ,these change immensely after a substance undergoes a chemical change.These are used for identification of unknown substances and for building up chemical classifications.

The major chemical properties are flammability,toxicity,reactivity,acidity and heat of combustion.For a chemical property to be apparent , it is necessary that the structure of the substance is altered.

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The third law of thermodynamics describes the entropy of a: solid.

The third law of thermodynamics states that the entropy of a pure crystalline substance approaches zero as the temperature approaches absolute zero (0 Kelvin or -273.15 degrees Celsius). This law implies that at absolute zero, a perfectly ordered and pure crystalline solid will have zero entropy.

The third law of thermodynamics is not specific to liquids or gases but applies to solids. In a solid, the molecules are highly ordered and have fixed positions in a regular lattice structure. As the temperature decreases towards absolute zero, the thermal motion of the molecules reduces, and the system becomes more ordered, resulting in a decrease in entropy.

In contrast, liquids and gases have higher entropy compared to solids at absolute zero because their molecules have more freedom of movement and are not as tightly arranged. Therefore, the third law of thermodynamics specifically addresses the entropy of solids and does not apply to liquids or gases.

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Answer:

C

Explanation:

I think it is a ever lasting process of pain and happiness cause the ones that are closest to you can make it hurt most but they can also make your day So probably

The shielding effect of bromine is greater than chlorine because there are more filled orbitals than in chlorine.

This is the process where by electrons are protected by the pull attraction of the nucleus with the use of electron shells. The shielding effect increases down the group of the periodic table and increases across the period. This is because when you move down the group, there's an increase in the number of shell by 1 and it helps to reduce the effect of nuclear attraction on the electrons. However when you move across the period, there's an increase in the numbers of electron with the same shielding electrons from group 1(a) across the period to group 7(a).

Shielding effect is primarily dependent on the numbers of electrons in the inner shells as well as the type orbitals.

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Sure, here is the structural formula for the carbonyl compound:

      H          H
      |          |
   H3C-C=O +   :B:- →   H3C-C^-(:B)-O^+

The enolate ion obtained by treating this carbonyl compound with base can exist in two resonance structures. The first resonance structure is:

       H          H
       |          |
   H3C-C^-(:B)-O + H      →   H3C-C=C(:B)-O

And the second resonance structure is:

       H          H
       |          |
   H3C-C=C(:B)-O + H      →   H3C-C^-(:B)-O^+

In both resonance structures, the negative charge is delocalized over the carbon-carbonyl bond and the adjacent carbon atom. This delocalization makes the enolate ion a relatively stable species.

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Answer:

quartz (SiO2)n

Explanation:

Melting point is defined as the temperature or point at which the substances change its state from solid to liquid.

Quartz (SiO2)n has high melting point than O2 because Quartz (SiO2)n is found in the form of hard, crystalline mineral that is made up of silicon and oxygen atoms having strong covalent bonds between all the atoms. So, a lot of energy is required to break the bond between the atoms and it has a high melting point.

Hence, the correct answer is quartz (SiO2)n.

The answers include the following:

This is referred to as the different types of methods which could be natural or artificial and employs the removal of excess water from a certain area or place.

Water in homes is drained through larger pipes which carry it into collection systems so as to prevent the risk of pollution and contamination of other areas.

Grey water path doesn't involve wastewater from the toilet while the black water comes from only the toilet which is why they were chosen as the correct choice.

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Each compound and its chemical formula will be as follows:

chromium(VI) oxide -  \(CrO_3\).

chromium(IV) oxide -  \(CrO_2\).

chromium(III) oxide -  \(Cr_2O_3\).

chromium(II) oxide - \(CrO\).

Chromium being a transition metal means that it can assume variable oxidation states in different compounds. Oxygen has a valence of 2.

Thus, when deriving the formula of a compound formed by chromium and oxygen, each atom will take the mole that is equivalent to the oxidation number of the other.

For chromium(VI) oxide, chromium is taking 6 as the oxidation number. Thus the formula of the compound will be \(Cr_2O_6\) or \(CrO_3\).

For chromium(IV) oxide, chromium takes 4 as the oxidation number. Thus the formula is either  \(Cr_2O_4\) or \(CrO_2\).

For chromium(III) oxide, chromium takes 3. The formula becomes \(Cr_2O_3\).

For chromium(II) oxide, chromium takes 2. The formula is either \(Cr_2O_2\) or \(CrO\).

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Answer:

75,900 g

Explanation:

m=d×v

(1.38g/cm^3) × (55,000)

Since the exact values of the service times are not provided, it is not possible to calculate the 3-sigma control limits. Therefore, the correct answer is "None of the other options."

The 3-sigma control limits are used in statistical process control to determine the acceptable range of variation in a process. To calculate the 3-sigma control limits, we need to first find the mean and standard deviation of the service times for the 20 randomly selected customers.

Step 1: Find the mean (average) of the service times.
Add up all the service times and divide by the total number of customers (20).

Step 2: Find the standard deviation of the service times.
Calculate the difference between each service time and the mean, square each difference, sum up all the squared differences, divide by the total number of customers (20), and then take the square root of the result.

Step 3: Calculate the 3-sigma control limits.
Multiply the standard deviation by 3 and add/subtract the result to/from the mean. This will give you the upper and lower control limits.

Since the exact values of the service times are not provided, it is not possible to calculate the 3-sigma control limits. Therefore, the correct answer is "None of the other options."

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Answer:

If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.

Explanation:

hope this helps

pls mark brainliest

The question requires us to calculate the energy, in joules (J), necessary to heat 83.5g of water from 26.7 °C to 75°C.

The heat energy (Q) can be calculated from the mass of the sample (m), its specific heat capacity of the substance (C) and temperature variation (ΔT), as given by the following equation:

Since the question did not provide a value for the specific heat capacity of water, we'll adopt the value 4.182 J/g.°C. Applying the values provided by the question, we can calculate the heat energy as:

Therefore, the heat energy necessary to heat the amount of water given grom 26.7 to 75°C is 1.69 x 10^4 J (or 16900 J).

no

Explanation:

i simply answered the question

you didnt ask for it you simply asked if i had it

being mad is no use, same with reporting and taking this down

in thoery my answer is correct

so, dont get mad, dot report, dont take this down

this is my protest

The mass of liquid mercury would fill a glass tube with a diameter of 16.0 mm to a height of 25.0 cm is 679.74 gram .

Calculation ,

Formula used : volume of the glass tube ( cylinder ) = \(r^{2}\) × \(\pi\) × h

height of the glass tube ( h ) = 25 cm

The density of the glass tube =  13.53 g/\(cm^{3}\)

Diameter of glass tube = 16.0 mm

radius of glass tube ( r ) = 16.0/2 mm  = 8 mm

radius of glass tube in cm = 0.8 cm

volume of the glass tube ( cylinder ) = \((0.8)^{2}\) × 3.14 × 25 cm = 50.24 \(cm^{3}\)

The density of the glass tube = 13.53 g/\(cm^{3}\) = mass/volume

mass = density ×  volume = 13.53 g/\(cm^{3}\) × 50.24 \(cm^{3}\) = 679.74 gram

Missing data : The density of the glass tube  13.53 g/\(cm^{3}\)

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The given answer: 12.0778

Solution:

              9.3478

       +          2.73

             12.0778

Answer & Explanation:  The Ames test examines the mutagenic effects of chemicals ; as such, it detects whether a given chemical can cause a reversion mutation in his- bacteria. While this is the purpose of the test, some of the reversion mutations are not caused by the mutagen being tested  for. The appearance of his revertants in the presence of a non-mutagenic control compound therefore indicates that His+ revertants on the control plate are the result of spontaneous mutation.