Chapter 10 (10.1-10.4)

Identify all the common acids from the following list. HCl H2SO4 NaOH CH4

-HCl -H2SO4

Which of the following correctly defines a precipitate?

A solid product that separates from a solution

Which of the following balanced chemical equations correctly represents the reaction shown in the image? (C = black; H = white; O = red)

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

Subscripts

Cannot be changed

For the reaction given below, which species are not included in the net ionic equation? BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)

Cl- spectator ions Na+

When balancing a chemical equation, appropriate ______ are written to the left of the chemical formulas.

Coefficients

When balancing a chemical equation, we can change only the ____ that precede the chemical formulas, not the ____ within the chemical formulas.

Coefficients, subscripts

CO3^2-

Compounds insoluble unless cation is a Group 1A metal or ammonium ion, NH4+

Match the water solubility guideline for ionic compounds containing the given ion. Carbonate Ion

Compounds insoluble unless cation is a Group 1A metal or ammonium ion, NH4+

Match the water solubility guideline for ionic compounds containing the given ion. Hydroxide Ion

Compounds insoluble unless cation is a Group 1A metal, Ba2+, or NH4+

Match the water solubility guideline for ionic compounds containing the given ion. Chloride Ion

Compounds soluble unless cation is Ag+, Hg22+, or Pb2+

The correct representation for the nonmetal helium is _____.

He(g)

An acid is defined as a substance that produces ____ ions in aqueous solution.

Hydrogen

Stoichiometric coefficients

Indicate number of each reactant and product in chemical equation

Base

Milk of magnesia (Mg(OH)2

Acid

Pool cleaner (HCl)

Acids

Produce hydrogen ions, H+, in aqueous solution.

Dalton's third hypothesis states that in a chemical reaction, the total mass of reactant atoms must equal the total mass of product atoms. This is a statement of the law of _______.

The law of conservation of mass states that the mass of all of the atoms involved in a chemical reaction must be the same before and after the reaction.

Neutralization is the reaction of a(n) __- and a(n) ___.

acid, base

A base is a substance that produces ____ ions.

hydroxide

In a chemical equation, the ____ appear to the left of the arrow and the ____ appear to the right of the arrow.

reactant, product

Which of the following statements correctly describe a net ionic equation?

- A net ionic equation shows only the species that participate in the chemical reaction. - A net ionic equation represents the actual chemical change taking place. (all of the above)

The molecular equation is given as K3PO4(aq) + AlCl3(aq) → 2KCl(aq) + AlPO4(s) Which species will be found in the complete ionic equation?

- Al3+(aq) as reactant only - AlPO4(s)

Using the solubility guidelines in the image, determine which of the following ionic compounds will be soluble in water. Ammonium phosphate Barium hydroxide Potassium chloride

- Ammonium phosphate - Barium hydroxide - Potassium chloride (all of the above)

Which of the following statements are correct according to Dalton's atomic theory? - Atoms are rearranged during chemical reactions. - Atoms are neither created nor destroyed as a result of a chemical reaction. - The mass of all of the atoms involved in a chemical reaction is the same before and after the reaction.

- Atoms are rearranged during chemical reactions. - Atoms are neither created nor destroyed as a result of a chemical reaction. - The mass of all of the atoms involved in a chemical reaction is the same before and after the reaction. (all of the above)

What statements correctly describe the following balanced chemical equation. H2SO4(aq) + 2NH3(aq) → (NH4)2SO4(aq)

- Each side of the balanced equation contains one S atom. - Each side of the balanced equation contains four O atoms.

An insoluble solid formed by a reaction in solution is called a ______.

- Group 1A ions - Ammonium ions, NH4+

Choose all the statements that correctly describe the numbers found in a chemical equation. - The subscripts are the numbers within the chemical formulas in a chemical equation. - The stoichiometric coefficients are the numbers that precede the chemical formulas.

- The subscripts are the numbers within the chemical formulas in a chemical equation. - The stoichiometric coefficients are the numbers that precede the chemical formulas. (all of the above)

A complete ionic equation includes ________.

- all soluble ionic compounds as ions - charges on ions - states of matter

Which of the following statements describes a precipitation reaction? This type of reaction often involves ionic compounds. This type of reaction usually occurs in aqueous solutions.

-This type of reaction often involves ionic compounds. - This type of reaction usually occurs in aqueous solutions. (all of the above)

Which of the following are the correct representations for the indicated metals/metalloids. -strontium; Sr(s) - silver; Ag(s) - scandium; Sc(s)

-strontium; Sr(s) - silver; Ag(s) - scandium; Sc(s) (all of the above)

In the reaction 2HClO4(aq) + Mg(OH)2(s) → Mg(ClO4)2(aq) + 2H2O(l), there are _______ on each side of the balanced equation.

1 Mg atom, 4 H atoms, 2 Cl atoms, and 10 O atoms.

Drag each substance to the coefficient it will have when the following equation is balanced. Cu(NO3)2(aq) + KOH(aq) → Cu(OH)2(s) + KNO3(aq)

1: Cu(NO3)2 2: KOH

Which is the correctly balanced form of the given chemical equation? Ca3(PO4)2(s) + SiO2(s) + C(s) → P4(g) + CaSiO3(l) + CO(g)

2Ca3(PO4)2(s) + 6SiO2(s) + 10C(s) → P4(g) + 6CaSiO3(l) + 10CO(g)

The balanced equation for the reaction between aqueous nitric acid and aqueous strontium hydroxide is given by ________.

2HNO3(aq) + Sr(OH)2(aq) → 2H2O(l) + Sr(NO3)2(aq)

Choose the balanced chemical equation that correctly describes the reaction shown in the accompanying image. (Na = white; Cl = green)

2Na(s) + Cl2(g) → 2NaCl(s)

There are _____ H atoms, _____ N atoms, and _____ O atoms on each side of the balanced chemical equation shown below. 3HNO2(aq) → HNO3(aq) + H2O(l) + 2NO(g)

3,3,6

According to solubility guidelines, ionic compounds containing which of the following anions will be soluble in water without exception?

Acetate ion Nitrate ion Chlorate ion

Vitamin C (HC6H7O6)

Acid

The molecular equation is given as AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq). Which species will be found in the complete ionic equation?

AgCl(s) Ag+(aq) as reactant only

When aqueous solutions of AgClO3 and CsI are mixed, AgI precipitates. Which species are included in the net ionic equation? Cs+ ClO3-- AgI Ag+

AgI Ag+

The molecular equation is given as K3PO4(aq) + AlCl3(aq) → 2KCl(aq) + AlPO4(s) Which species will be found in the complete ionic equation? Multiple select question.

AlPO4(s) Al3+(aq) as reactant only

Drano (NaOH)

Base

Choose the correctly balanced form of the following chemical equation. C2H4O2(l) + O2(g) → CO2(g) + H2O(l)

C2H4O2(l) + 2O2(g) → 2CO2(g) + 2H2O(l)

OH-

Compounds insoluble unless cation is a Group 1A metal, Ba2+, or NH4+

Match the water solubility guideline for ionic compounds containing the given ion. Sulfate Ion

Compounds soluble unless cation is Ag+, Hg22+ Pb2+, Ca2+, Sr+, or Ba2+

SO42-

Compounds soluble unless cation is Ag+, Hg22+ Pb2+, Ca2+, Sr+, or Ba2+

I-

Compounds soluble unless cation is Ag+, Hg22+, or Pb2+

How would the metal copper be represented in a chemical equation?

Cu(s)

Aircraft emergency oxygen systems generate their oxygen from a redox reaction of sodium chlorate into oxygen gas and table salt, sodium chloride: 2NaClO3(s) → 3O2(g) + 2NaCl(s) What type of redox reaction is this?

Decomposition

T or F: According to the law of conservation of mass, a chemical equation need not be balanced.

False

Match the following representations with the appropriate metal or metalloid. Ge(s)

Germanium

Which of the following options gives the correct net ionic equation for the reaction between HNO3(aq) and KOH(aq)?

H+(aq) + OH--(aq) → H2O(l)

Subscripts

Indicate number of each type of atom in a chemical formula

Which statement defines spectator ions?

Ions that do not participate in the reaction although they are present

Italicized letters in parentheses following each species typically indicate the _____ of reactants and products in a chemical equation.

Physical States

Reactions that result in the formation of an insoluble product from a solution are called ____ reactions.

Precipitation

Bases

Produce hydroxide ions, OH--, in aqueous solution.

Match the following representations with the appropriate metal or metalloid. Si(s)

Silicon

Sodium chloride, ammonium phosphate, and copper acetate are all ___ in water.

Soluble

Match the following representations with the appropriate metal or metalloid. Sn(s)

Tin

Ti(s)

Titanium

T or F: The following ionic compounds will be soluble in water. FeSO4 Na2CO3

True

T or F: The same number of each kind of atom appears on both sides of the reaction arrow.

True

T or F: When balancing a chemical equation Change the coefficients of compounds before changing the coefficients of elements.

True

T or F: When balancing a chemical equation Never change the subscripts in a chemical formula.

True

T or F: When balancing a chemical equation Polyatomic ions that appear on both sides of the equation can be treated as units.

True

T or F: Nitrogen gas is a nonmetal that is represented as N2(g) in a chemical equation.

True

Stoichiometric coefficients

can be changed

After balancing a chemical equation, you should always ______.

check to be sure the equation is balanced by counting all the atoms individually

The following is a _____. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

chemical equation

A net ionic equation is obtained when spectator ions are omitted from the ___ ionic equation.

complete

According to Dalton's third hypothesis, during a chemical reaction, atoms are neither _____ nor destroyed. This is another way of stating the law of conservation of _____.

created, mass

In a ___ - ___ reaction, two soluble ionic compounds exchange ions.

double displacement

A chemical reaction in which cations and anions appear to exchange partners is known as a ____________ reaction.

double-displacement

On aircrafts, emergency oxygen can be generated if needed from sodium chlorate according to the following reaction: 2NaClO3(s) → 3O2(g) + 2NaCl(s) + heat Because heat is produced in this reaction, it would be considered an ______ reaction.

exothermic

An ___ ionic equation is very useful because it includes only the species directly involved in the reaction.

net

Reactions that result in the formation of an insoluble product from a solution are ___ called reactions.

precipitation

Reactions that result in the formation of an insoluble product from a solution are called _____ reactions.

precipitation

The balanced equation below is an example of a reaction. Mg(NO3)2(aq) + 2 NaOH(aq) → Mg(OH)2(s) + 2 NaNO3(aq)

precipitation

The neutralization reaction between an acid and a base usually produces water and a ______.

salt

The products of an acid-base neutralization reaction are often a(n) ______ and a(n) ______.

water molecule salt