Chem ch8

Which of the following is a formula equation for the formation of carbon dioxide from carbon and oxygen?

C + O2 = CO2

In writing an equation that produces hydrogen gas, The correct representation of hydrogen gas is

H2

For the formula equation 2Mg+O2 = 2MgO, the word equation would begin

Magnesium plus oxygen

Which coefficients correctly balance the formula equation CaO + H2O = Ca(OH)2

1,1,1

Which coefficients correctly balance the formula equation NH4NO2(s) = N2(g) + H2O(I)

1,1,2

What is the balanced equation when aluminum reacts with copper (II) sulfate

2Al + 3CuSO4 = Al2(SO4)3 + 3Cu

Which reaction does not occur

2HF + Cl2 = F2 + 2HCl

When the equation Fe3O4 + Al = Al2O3 + Fe, what is coefficient of Fe?

9

The ability of an element to react is the element's

Activity

According to the law of conservation of mass, The total mass of reacting substances is

Always equal to the total mass of the products

An element in the activity series can replace any element

Below it on the list

What is the small whole number that appears in front of a formula in a chemical equation

Coefficient

In what kind of reaction does a single compound produce two or more simpler substances?

Decomposition reaction

The equation Ax = A+X is the general equation for a

Decomposition reaction

The reaction 2HgO(s) = 2Hg(I) + O2(g) is a(n)

Decomposition reaction

The reaction 2KCIO3(s) = 2KCI(s)+ 302(g) is a(n)

Decomposition reaction

The equation AX + BY = AY + Bx is the general equation for

Double replacement reaction

The reaction Pb(NO3)2(aq) + 2Kl(aq) = Pbl2(s) 2KNO3 (aq) is a

Double replacement reaction

In what kind of reaction do the ions of two compounds exchange places in aqueous solution to form two new compounds

Double-displacement reaction

If chlorine gas is produced by halogen replacement, the other halogen in the reaction must be

Fluorine

The replacement of bromine by chlorine in a salt is an example of a single-replacement by

Halogens

Which word equation represents the reaction that produces water from hydrogen and oxygen

Hydrogen plus oxygen yields water

Magnesium bromide + chlorine yield

Mg(Cl)2 and Br2

How would oxygen be represented in the formula equation for the reaction of methane and oxygen to yield carbon dioxide and water

O2

Chemical equation is balanced when the

Same number of each kind of atom appears in the reactants and products

The equation A+ BX = AX + B is the general equation for a

Single replacement reaction

The reaction Cl2(g) + 2KBr(aq) = 2KCl(aq) Br2I is a(n)

Single replacement reaction

The reaction Mg(s)+ 2HCl(aq) = H2(g) + MgCl2(aq) is a

Single replacement reaction

In what kind of reaction does one element replace a similar element in a compound?

Single-replacement reaction

The equation A +X = AX is the general equation for a(n)

Synthesis reaction

The reaction 2Mg(s) + O2(g) = 2MgO(s) is a

Synthesis reaction

When binary compound decomposes what is produced

Two elements

What can be predicted by using the activity series

Whether a certain chemical reaction will occur

Which equation is NOT balanced?

2H2 + O2 = H2O