# Biology for ICCSE. Per Il Liceo Classico: Y10D - UNIT 4 AND 5 BINGO Flashcards

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Anton Sanmartin
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1

Name the following compounds

a) CaCO3

b) CuSO4

c) NaNo3

d)KOH

a) Calcium Carbonate

b) Copper Sulphate

c) Sodium Nitrate

d) Potassium hydroxide

2

Write the formula of these ionic compounds by balancing the charge on the ions.

a) Ammonuim Chloride

b) Sodiyum Sulphate

a) Cl- NH4 + ---> ClNH4

b)Na2 SO4

3

Write balanced symbol equation for the following reaction.

Calcuim hydroxide + Nitric acid --> calcium nitrate + water

Ca(OH)2 + HNO3 --> Ca(NO3)+ H2O

Ca(OH)2 + 2HNO3 ----> Ca(NO3)2+2H2O

4

Write ionic equations for the following reactions

NaCl(aq)+AgNO3(aq)---> NaNO3(aq) + AgCl(s)

Ag+(aq)+ Cl- (aq)---> AgCl (s)

5

Define relative atomic mass

The average mass of a naturally occuring atoms of an element on a scale where the carbon 12 atom has a mass of exactly 12 units

6

How much is a mole?

Amount of substance that contains 6x1023 atoms ions or molecules

7

Define Limiting reactant

The reactant that isnt in excess in a chemical reaction

8

Write the formula of % by mass

mass of a particular element in

%by mass = one mole of a compound_

mass of one mole of a compound

9

Work out the percentage purity of a substance that has 1.6 grams of impureness and 48.8 grams of purity.

96.8% pureness

10

What is the empirical formula?

A formula that shows the simplest whole-number ratio of the elements present in a compound.