year 10 chemistry revision

periodic table

100

Identify the number of elements on the periodic table.

118

200

Identify the family name given to the elements of group 8.

nobel gases 

300

what position on the periodic table is phosphorous 

period 3 group 5

400

what is the chemical element for lead?

pb

500

element with atomic number 40 

zirconium 

chemical reactions

100

AB -> A + B is what type of reaction 

Decomposition 

200

When burning magnesium, it combines with oxygen to form what compound?

2 Mg(s)   +    O2(g)      →     2 MgO(s)

magnesium oxide 

300

rust is the product of what reaction? 

corrosion or oxidation

400

Neutralisation is the reaction between a _____ and a _____

acid, base 

500

Zinc(s) + oxygen(g) -> zinc oxide(s)

Do the mass of the reactants on a crucible = products 

No, heavier after 

chemical equations

100

HCL is a chemical formula for?

hydrochloric acid 

200

Zn+S→ZnS
convert this to a worded equation.

zinc+sulfur→zinc sulfide

300

Fe2O3 what is this a chemical formula for?

iron oxide 

400

Balance this equation 

 ___ SnO₂ + ___ H₂ → ___ Sn + ___ H₂O

SnO₂ + 2 H₂ → Sn + 2 H₂O

500

balance this equation ___ P₄ + ___H_{2 ---> ___}PH₃

1P₄+6H₂---->4PH₃

chemical reactions 2

100

Classify this type of reaction:

N2 (g) + H2O (g) + O2 (g) → NH4NO3 (s)

Synthesis or combination 

200

products of Acid-Base Reactions

salt and water 

300

The process of transforming a dissolved substance into an insoluble solid. 

Formation of a separable solid substance from a solution

precipitation reaction

400

What is the type of reaction for this chemical reaction: 

AgNO₃ (aq) + NaCl (aq) → AgCl (s) + NaNO₃ (aq)

Double displacement & precipitation  

double points for both 

500

What do the products of a combustion reaction always include?

CO2 and H2O

atoms, compounds and molecules

100

A positively charges particle in the atomic nucleus. its mass is approximately 1 atomic unit.

proton

200

true or false protons have a similar mass to neutrons and hold a positive charge.

true

300

what is the difference between a molecule and compound?

• A molecule is formed when two or more atoms of an element chemically join together.
• A compound is a type of molecule, in which the types of atoms forming the molecule are different from each other.

400

what are covalent bonds.

Covalent bonding is the sharing of electrons between atoms.

500

how many electrons does magnesium have in its outer shell?

3 (altogether it has 12 electrons -> 2 in the first, 8 in the 2nd and 3 in the 3rd)true