Show:
Lucky Dip
Ionic Compounds
Chemical Reactions
Balancing Equations
Acids and Bases
100

What are the three subatomic particles that make atoms?

Protons, Neutrons and Electrons

100

What are the two types of ion? 

Cation (positive charge) and Anion (negative charge)
100

An acid reacts with a metal to form salt and hydrogen gas. What are the reactants of this equation?

Acid and metal. 

100
What is the law of conservation of mass?

Matter cannot be created or destroyed, only rearranged. 

100

Is the pH of an acid below 7 or above 7?

Below

200

What is the electron shell configuration of Aluminium (Atomic Number: 13)?

2, 8, 3

200

A phosporus atom has 5 valence (outer shell) electrons. What charge will a phosporus ion have?

3-
200

An acid reacts with a base to form a salt and water. What are the products of this reaction?

A salt and water. 

200

The number of atoms for reactants and products in a chemical equation must be...

The same.

200

What substance has a pH of 7?

Water

300

When steel wool (Fe) is burnt, it reacts with oxygen (O) in the air. Will the wool weigh more or less after burning?

More, because the oxygen combines with the iron atoms.
Fe + O -> FeO

300

If a sodium ion (Na+) and a Chlorine ion (Cl-) bond to become table salt, what will the formula be?

NaCl

300

Sometimes a chemical reaction produces a lot of heat. This type of reaction is called an...

Exothermic reaction. 

300

Balance: Mg + O2 -> MgO

2Mg + O2 -> 2MgO

300

When citric acid is added to bicarb soda, the beaker becomes very cold. This is called...

An endothermic reaction

400

How are atoms ordered on the Periodic Table?

By atomic number (number of protons)

400

If an Aluminium ion (Al3+) and a Sulfur ion (S2-) bond to become Aluminium sulfide, what will the formula be?

Al2Cl3

400

When wood is burned, heat and light are both produced. This is called a...

Combustion reaction

400

Is this equation balanced?
2AgNO3 + Fe -> Fe(NO3) + 2Ag

Yes

400

When an acid reacts with a metal, they create what?

A salt and hydrogen gas

600

What is the most common element on earth?

Oxygen (about 47% of earth's atoms are oxygen)

600

If a magnesium ion (Mg2+) and a carbonate ion (CO32-) bond to become calcium carbonate, what will the formula be?

MgCO3

600

What do groups tell us on the Periodic Table?

The number of valence electrons (electrons on the outermost shell) for elements in that group

600

Balance:
HCl + CaCO3 -> CaCl2 + H2O + CO2

2HCl + CaCO3 -> CaCl2 + H2O + CO2

600

When an acid reacts with a base, they create what?

A salt and water