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, 201375 responses 0

which is a balanced equation of P4 + O2 = P2O5

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

what color does bromythymol blue turn in a acid

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

a neutralization reaction produces

metals tend to

florine has a charge of

-4
-2
-1
-3
+2

example of single displacement

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

the more acidic a substance the more ___ ions it has

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

what is the chemical formula for carbonate?

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

sodium and nitrogen produce

Na3N
Na2N3
NaN2

lewis dot diagrams only show

copper has ionic charges of

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

pure substances break into

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

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 it called when two non metals form a compund

metals are on the left side of the periodic table

true
false

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

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

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

what deadly gas is in a incomplete combustion?