Chemistry Review Semester 1 2024

Front

What is the atomic structure of titanium?

Back

Titanium has 22 protons, 26 neutrons, and 22 electrons.

Front

What is the balanced equation for the decomposition of sodium chlorate (NaClO3)?

Back

2 NaClO3 → 2 NaCl + 3 O2

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

How can you determine if a chemical equation is balanced?

Back

A chemical equation is balanced if the number of atoms of each element is the same on both sides of the equation.

Front

What does it mean for a material to be corrosive?

Back

A corrosive material can cause destruction of living tissue or severe corrosion of material.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is the significance of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stability of the nucleus.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.