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, 201352 responses 0

the more acidic a substance the more ___ ions it has

florine has a charge of

-4
-2
-1
-3
+2

lewis dot diagrams only show

sodium and nitrogen produce

Na3N
Na2N3
NaN2

what is the chemical formula for carbonate?

sign of a chemical change

Select the five correct answers
new smell
new color
impossible to reverse
precipitate is formed
substance breaks down
bubbles form
heat is given off

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

pure substances break into

Select the three correct answers
non metal
metals
metalloids
acids
bases
neutral

metals are on the left side of the periodic table

true
false

what deadly gas is in a incomplete combustion?

metals tend to

what is an example of a skeleton equation?

Select the two correct answers
NaCl + 2Na + Cl
Cl2 + 2NaBr = Br2 + 2NaCl
2NaCl = 2Na + 2 CL

what color does bromythymol blue turn in a acid

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

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

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

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

copper has ionic charges of

what is it called when two non metals form a compund

example of single displacement

AB + CD = AD + CB
A + BC = AC + B

which is a balanced equation of P4 + O2 = P2O5

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

a neutralization reaction produces

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