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, 201344 responses 0

copper has ionic charges of

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

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

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

example of single displacement

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

lewis dot diagrams only show

what is the chemical formula for carbonate?

metals are on the left side of the periodic table

true
false

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

florine has a charge of

-4
-2
-1
-3
+2

which is a balanced equation of P4 + O2 = P2O5

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

what deadly gas is in a incomplete combustion?

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

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 bromythymol blue turn in a acid

sodium and nitrogen produce

Na3N
Na2N3
NaN2

a neutralization reaction produces

what is it called when two non metals form a compund

pure substances break into

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

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

the more acidic a substance the more ___ ions it has

metals tend to