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3 years ago

What happens when you change the number of protons keeping the numbers of other particles the same?

Chemistry

1 answer:

Ne4ueva [31]3 years ago

7 0

Answer:

See explanation

Explanation:

The atomic number refers to the number of protons in the nucleus of an atom. We identify an element by its atomic number.

When the atomic number of an atom of an element is changed, we have changed the identity of that atom and transformed it into an atom of a different element.

For example, if we add a proton to a sodium atom, we create a magnesium atom. If we remove a proton from a sodium atom, we create a neon atom.

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An alcohol thermometer makes use of alcohol's changing in order to measure temperature. As the temperature goes up.

kotegsom [21]

The question is incomplete, the complete question is;

An alcohol thermometer makes use of alcohol's changing _______ in order to measure temperature. As the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

mass

state

chemical composition

density

Answer:

density

Explanation:

Every kind of thermometer makes use of a change in a particular physical property of a substance as a measure of temperature. It must be a property that changes with temperature.

Density of a substance changes with temperature. Even though the mass of alcohol in glass remains constant, but its volume increases or decreases with change in temperature leading to a change in volume and consequently a change in density of the alcohol in glass. This change is used as a measure of the change in temperature.

4 0

3 years ago

2. elements or compounds present before the chemical reaction

Amanda [17]

Answer: These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

Explanation:

Brainliest plsss

5 0

3 years ago

How the metals react with oxygen? Give the general formula and explain the reaction of sodium with oxygen with chemical equation

slamgirl [31]

Answer:

Sodium is a very reactive metal, it tends to react with oxygen to form sodium oxide but this is an unstable compound and soon reacts with hydrogen to form sodium hydroxide. Sodium is the metal reacts vigorously with oxygen and water.

4 Na + O2 → 2 Na2O.

4 0

3 years ago

How many moles of AgNO3 must react to form 0. 854 mol Ag? mol AgNO3.

babunello [35]

The moles of silver nitrate required to form 0.854 mol silver ion has been 0.854 mol.

The balanced chemical equation for the dissolution of silver nitrate has been:

$\rm AgNO_3\;\rightarrow\;Ag^+\;+\;NO_3^-$

The aqueous solution of silver nitrate has been dissociated into the constituent silver and nitrate ions.

In a balanced chemical equation, the coefficient has been equivalent to the moles of each reactant forming the moles of product.

From, the balanced equation,

$\rm 1\;mol\;AgNO_3=1\;mol\;Ag$

The given moles of Silver has been 0.854 mol. Thus, the moles of silver nitrate required has been given as:

$\rm 1\;mol\;Ag^+=1\;mol\;AgNO_3\\0.854\;mol\;Ag^+=0.854\;\times\;1\;mol\;AgNO_3\\0.854\;mol\;Ag^+=0.854\;mol\;AgNO_3$

The moles of silver nitrate required to form 0.854 mol silver ion has been 0.854 mol.

For more information about the moles produced, refer to the link:

brainly.com/question/10606802

6 0

2 years ago

Paratrooper not hurt while landing,why?

solong [7]

Answer:

Paratroopers not hurt while landing because when they get to the ground, they keep their knees and feet together helping them to land properly.

hope it helps!

8 0

3 years ago