Gr. 9 Chemistry Review

The hydrogen gas is explosive. This describes a.....

Elements in the same _______________  on the periodic table have similar properties. 

The number of protons in an atom is the same as .....

Heterogenous mixtures.....

Molecules form because....

Which is true of the location of subatomic particles in an atom. 

Which of the following is a physical change? 

Tomorrow on my chemistry test.....

Matter is......

The nickel is shiny and sinks. Which physical properties have been described? 

Matter made up of only one type of atom is an.....

A molecule contains 2 atoms of nitrogen and 3 atoms of oxygen.  What is the chemical formula? 

Atomic number of 5 and an atomic mass of 11.  How many neutrons does it have? 

Which of the following is a chemical change?

Which of the following is NOT a physical property of matter?

The number of electrons in an atom is the same as .... 

All of the following are indicators of a chemical change except.....

Two of atoms bonded together creates a .....

Properties of metals include all but....

The  element symbols of sodium, potassium and neon are.....