Chem

In a single-displacement reaction, an element in the activity series most likely can replace any element

below it on the list

From a complete and correctly written chemical equation, you can obtain the

relative amounts of the reactants and products.

Which of the following is true regarding single-displacement reactions?

One element replaces another in a compound.

The formation of a solid product in a chemical reaction is represented by the symbol

(g)

What is the total number of molecules that is represented by the following chemical equation? NH4NO2 --> N2 + 2H2O

4

The activity series helps to predict

whether or not a specific chemical reaction is possible.

Which of the following equations represents the balanced equation for the reaction of iron and oxygen.

4Fe + 3O2 --> 2Fe2O3

What symbol indicates a reversible reaction

<-- -->

In the expression 3CO2, the numbers 3 and 2 are, respectively,

A coefficient and a subscript

Which of the following is true regarding double-displacement reactions?

All of the Above

In the reaction described by the word equation sodium + water --> sodium hydroxide + hydrogen gas

Both (a) and (c) is a product and reactant

If Calcium is listed above Magnesium in the activity series, and magnesium is listed above Zinc, which of the following reactions is possible?

Ca(s) + MgCl2(aq)

A mixture of propane and oxygen react to form carbon dioxide and water. What type of chemical reaction is this?

Combustion

2H20(l) --> 2H2(g) + O2(g)

Decomp

Calcium Carbonate, CaCO3, reacts to form calcium oxide, CaO, and Carbon Dioxide, CO2. What type of reaction is this?

Decomposition

HCl(aq) + NaOH(aq) --> NaCl(aq) + H2O(l)

Double

Cl2(g) + 2KBr(aq) --> 2KBr(aq) + Br2(l)

Single

What type of chemical reaction does the following chemical equation represent? 2HCl(aq) + Cr(s) --> H2(g) + CrCl2(aq)

Single Displacement

You mix solution A with solution B in a beaker. Which of the following observations does not help you prove that a chemical reaction has occurred?

Solution A, Solution B, and the mixture are all yellow.

CaO(s) + H2O(l) --> Ca(OH)2(s)

Synth

In which type of reaction do two or more compounds react to form one product?

Synthesis

Which of the following indicates that a chemical equation is balanced?

The number of atoms of each element are the same on both sides of the equation.

Metal X replaces the ions of metal Y from the solution, but it cannot replace the ions of metal Z from solution. The order these metals should have in the activity series is

Z,X,Y

To balance a chemical equation, you must

adjust the coefficients.

What type of chemical reaction is represented by the following word equation? iron + oxygen --> iron(II) oxide

synthesis