grade 10 CHEM test for exam

grade 10 CHEM test for exam

good to study for the exam grade 10 chemistry unit ... .. . .. ... . . .

published on January 20, 2013120 responses 0
grade 10 CHEM test for exam
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1/23

the more basic a substance is the more ___ ions it has

2/23

what type of chemical reaction is this? Na + Cl = NaCl

3/23

which is a balanced equation of P4 + O2 = P2O5

2P4 + 3O2 = 4P2O5
P4 + 5O2 = 2P2O5
5P + 1O2 = 3P2O5
4/23

copper has ionic charges of

5/23

florine has a charge of

-4
-2
-1
-3
+2
6/23

metals are on the left side of the periodic table

true
false
7/23

metals tend to

8/23

pure substances break into

Hint: 3 choices
non metal
metals
metalloids
acids
bases
neutral
9/23

what deadly gas is in a incomplete combustion?

10/23

lewis dot diagrams only show

11/23

what color does bromythymol blue turn in a acid

12/23

what is the chemical formula for carbonate?

13/23

what is an example of a skeleton equation?

Hint: 2 choices
NaCl + 2Na + Cl
Cl2 + 2NaBr = Br2 + 2NaCl
2NaCl = 2Na + 2 CL
14/23

what is the chemical equation for potassium metal and chlorine gas combine to form potassium chloride.

15/23

a neutralization reaction produces

16/23

what is on the left side of a word and chemical equation?

17/23

sodium and nitrogen produce

Na3N
Na2N3
NaN2
18/23

sign of a chemical change

Hint: 5 choices
new smell
new color
impossible to reverse
precipitate is formed
substance breaks down
bubbles form
heat is given off
19/23

example of single displacement

AB + CD = AD + CB
A + BC = AC + B
20/23

what color does phenolphtalein turn in a acid neutral and basic solution?

21/23

the more acidic a substance the more ___ ions it has

22/23

whaat do you need in order to produce a combustion equation?

23/23

what is it called when two non metals form a compund