Duplicate of Science 10 Unit A Review - Chemistry

The image below is an example of

Which of the following is FALSE about acids and / or bases?

A clue to a chemical change is

C₁₂H₂₂O_{11  (s)}  is called

It is important that you wear personal protective gear in the science lab

What hazard is represented by this symbol?

The following elements are diatomic and are always written as ___  _{2  (2 atoms)}

Combustion requires ____  to occur and often produces a gas called __________.

The mole is equal to 

Calcium carbonate is an ionic compound.

dinitrogen monoxide is

What hazard is represented by this symbol?

The number of protons that an atom of phosphorus has is

Below is a picture of a ____ showing a ____ solution.

The number of electrons that a phosphorus ion has is

Substance that is made of two or more types of atoms that cannot be separated by ordinary means

The correct name for    H₂S  is  

Molecular compounds are solids at room temperature and conduct electricity in solution.

Single replacement reactions will start with one element and compound and then end with

The number of protons that a phosphorus ion has is

Matter cannot be created or destroyed, only converted from one form to another. This is the law

The formula for the acid below is

The name for SO₄^2-    is 

The subatomic particles found in the nucleus are

The formula for diphosphorus tetraoxide is

Ionic compounds can exist as solids, liquids and gases at room temperature.

The scientist that described the atom as small spheres was

If the mass of the product CaSO_{4 (s)}  is 200.23 g  then  the mass of 

WHMIS stands for

When heat is lost from a reaction, a _______ change has taken place.

Balance this:   __ N₂  + ___  H₂ -->   ___  NH₃

Under the section that is labelled first aid measures there is info about

PbCl_{4  (s)}    is called