Phy Sci Review #3 chemistry 24

Front

What is nuclear fission?

Back

Nuclear fission is a reaction in which the nucleus of an atom splits into smaller parts, releasing a large amount of energy.

Front

What is nuclear fusion?

Back

Nuclear fusion is a reaction in which two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the correct name for the compound CuCl?

Back

Copper(I) chloride.

Front

How many protons does a neutral atom of boron (B) have?

Back

5 protons.

Front

How many neutrons does a neutral atom of boron (B) have?

Back

6 neutrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

How many valence electrons does magnesium (Mg) have?

Back

2 valence electrons.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides of the equation.

Front

What is the whole-number coefficient needed to balance the equation: Ag + HCl → H2 + AgCl2?

Back

2.

Front

What is the atomic mass number?

Back

The atomic mass number is the total number of protons and neutrons in an atom's nucleus.