chapter 7 - export Flashcards by Carlos vega

Hypothetically, in a solution where acid neutralizes a base, the remaining ionic product is a _____.

salt

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Qz. T/F, spectator ions do not participate in the reaction by undergoing chemical change.

TRUE

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OH^- =

basic ion

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A solution with a lower hydrogen ions concentration is ______.

alkaline

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In a combustion reaction, the products formed are: chemical products and ______ _____.

energy heat

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Qz. T/F, A molecular equation gives the complete chemical formula and phases for each reactant and product of a reaction.

TRUE

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Spectator ions do not appear in the net ionic equation.

TRUE

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Amount of ionization, known as the _____.

strength

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In a net ionic equation, the species that are shown are _____, they are directly involved in the reaction.

components

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In an oxidation-reduction reaction, typically:

one species loses electrons (_____),
a second species gains electrons (_____).

oxidation
reduction

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This reaction is known as a ______ reaction, it is an oxidation-reduction reaction that involves 0₂.

combustion

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Qz. T/F, a molecular equation gives the complete chemical formula and phases for product of a reaction.

FALSE

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Reactions of an acidic ion H+ and basic-ion OH-, this is known as a _____ _____ reaction.

Acid-Base reaction

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In an oxidation-reduction reaction, electrons transfer to the spceicies being _____ and electrons are transfering from the species being _____.

oxidized
reduced

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Qz. T/F, spectator ions participate in the reaction by undergoing chemical change.

FALSE

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Hypothetically, if 27 NaOH units dissolved in water, how many Na+ ions would the solution contain?

27 Na+ ions

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In a _____ _____ equation, all strong electrolytes are shown as ions.

complete ionic

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Qz. For a complete ionic equation all the _____ _____ are shown as ions.

strong electrolytes

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In a net ionic equation (s), there are ions in the reaction that do not participate, they are called _____ _____.

spectator ions

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(Think of a combustion) In a compound where hydrocarbon reacts with an oxygen, products are converted from hydrocarbon to carbon dioxide and water vapor. These equations are said to be difficult to balance, due to their odds and even numbers. Therefore it is simpler to balance the equation using _____ coefficients.

fractional

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Soluble salts that have strong electrolytes, are:

1.
2.
3.
4.
5.

(mnemonics works as well)

Caesium sulfate,
Sodium Chloride,
Potassium bromide,
Potassium iodide,
Rubidium nitrate

Mnemonics (

Cuddly Scared,

Superhero Cats,

Pounded Black,

Inflammable Rum,

Rats Nasally)

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Strong acids also have ______ (weak/strong) electrolytes; weak acids do not.

strong

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Cobalt(II) chloride dissociates to give aqueous solutions comprised of

Co2+ and 2 Cl-

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Is potassium sulfide (K₂S) soluble in water?

Yes

(Most salts of K+ are soluble.)

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In strong base(s), _____ are produced when dissolved in water.

hydroxide

In a _____ reaction, an element or compound reacts with oxygen, quickly enough - causing a large relase of energy. (These amonts of energy are the results of flames.)

combustion

Is cesium sulfate (**Cs²SO⁴**) soluble in water?

Yes (Most sulfate salts are soluble.)

There are four driving forces that favor a chemical change, they are: 1. Formation of a solid 2. Formation of water 3. Formation of a gas 4. Transfer of \_\_\_\_\_

electrons

The net ionic equation simply indicates: 1. A reaction in a \_\_\_\_\_ 2. Componants ______ involved 3. Without _____ \_\_\_\_\_

1. solution 2. directly 3. spectator ions

There are four driving forces that favor a chemical change, they are: 1. Formation of a solid 2. Formation of \_\_\_\_\_ 3. Formation of a gas 4. Transfer of electrons

water

Soluble salts such as NaCl, KBr, Cs2SO4, Ca(NO3)2, RbNO3, and KI are _____ electrolytes.

strong

In a _____ equation, it has complete formulas of reactants and products.

molecular

A base is a, proton \_\_\_\_\_.

accepter.

Salt

Ionic compound

Is silver chloride (**AgCl**) soluble in water?

H⁺ =

acidic ion

Spectator ions do appear in the net ionic equation.

FALSE

Strong acids are also strong electrolytes; weak acids _____ (are/are not).

are not

A + BC -\> B + AC

single-displacement

Known as a measure of the strength of the acid or base character of a substance, the \_\_\_\_\_.

There are four driving forces that favor a chemical change, they are: 1. Formation of a \_\_\_\_\_ 2. Formation of water 3. Formation of a gas 4. Transfer of electrons

solid

Is ammonium sulfide (**(NH4)₂S**) soluble in water?

Yes (Most salts of NH4+ are soluble.)

An acid is a, proton \_\_\_\_\_.

donor.

Qz. Spectator ions are ionic species that are present _____ the reaction.

* **both** * **before** and * **after** the reaction

In an _____ \_\_\_\_\_ reaction, a species loses an electron (oxidation), while the other species gains an election (oxidation).

oxidation-reduction

When a substance that contains strong electrolytes is dissolved in water, the electrolytes seperates into _____ ions.

distinct ions

Your textbook mentions four strong acids. You only had to give three of the following equations: 1. _____ Acid 2. _____ Acid 3. _____ Acid 4. _____ Acid

1. Hydrochloric Acid (HCl) 2. Nitric Acid (HNO3) 3. Sulfuric Acid (H2SO4) 4. Perchloric Acid (HClO4) ***(Mnemonics**: Hendry Nursed Scrawny Padame)*

A substance is said to be a _____ electrolyte if each unit of the substance produces separated, distinct ions when the substance is dissolved in water.

strong

A substance is said to be a strong electrolyte if each unit of the substance produces separated, _____ ions when the substance is dissolved in water.

distinct

In an acid/base reaction in aqueous solution, one of the products that is typically formed, it is \_\_\_\_\_.

water (H2O) (if memorized, finding the solution of the salt will be simple)

A solution with a higher hydrogen ions concentration is \_\_\_\_\_.

acidic

In strong base(s), they are also known as strong \_\_\_\_\_.

electrolytes

(Think of a combustion) In a compound where hydrocarbon reacts with an oxygen, products are (almost always) converted from hydrocarbon to: ## Footnote 1. \_\_\_\_\_ 2. \_\_\_\_\_

1. carbon dioxide 2. water vapor

The complete ionic equation is derived from the molecular equation by ______ soluble ionic compounds

dissociating

There are four driving forces that favor a chemical change, they are: 1. Formation of a solid 2. Formation of water 3. Formation of a \_\_\_\_\_ 4. Transfer of electrons

gas

Is iron(III) chloride (**FeCl₃**) soluble in water?

Yes (Most chloride salts are soluble.)

The _____ \_\_\_\_\_ equation specifies only those components of the reaction that undergo change.

net ionic

strong bases, list all 5

1. LiOH - lithium hydroxide 2. NaOH - sodium hydroxide 3. KOH - potassium hydroxide 4. RbOH - rubidium hydroxide 5. CsOH - cesium hydroxide

This reaction is known as a _____ reaction, it is one in which a compound forms from simpler substances, such as elements.

synthesis

Is calcium sulfite (**CaSO₃**) soluble in water?

The net ionic equation is obtained from the full ionic equation by eliminating _____ ions.

spectator

When a substance is dissolved in water and each unit of the substance produces separated distinct ions, it is known as a _____ electrolyte.

strong electrolyte

When finishing, balancing equations with polyatomic ions the polyatomic ions should be balanced as a \_\_\_\_\_\_? (\*precipitation)

individual \*[(N)(O)(O)(O)]} = [(N)(O)(O)(O)]}

Is magnesium hydroxide (**Mg(OH)²**) soluble in water?

Spectator ions are not written in a ______ equation.

chemical

Reactions in which one or more electrons are transferred.

oxidation-reduction

Is iron(II) nitrate (**Fe(NO₃)₂**) soluble in water?

Yes (Most nitrate salts are soluble)

AB + CD -\> AD + CB

double-displacement

This reaction is known as a _____ reaction, the formation of a solid when two solutions are mixed.

precipitation

Hypothetically, if 27 NaOH units dissolved in water, how many OH- ions would the solution contain?

27 OH- ions

This type of equation for a reaction in a solution, and indicates components that are directly invovled in the reaction. Additionally, they are without spectator ions.

net ionic equation

It is known that NaOH _____ dissociates the Na+ ions and OH- ions.

completely

(Think of a combustion) In a compound which contains carbon and hydrogen, these atoms are called \_\_\_\_\_

hydrocarbons

Is lead(II) iodide (**PbI²**) likley to be soluble in water?

When beginning, balancing equations with polyatomic ions, the polyatomic ions should be balanced as a \_\_\_\_\_\_? (\*precipitation)

unit {[NO3-] not as [(N)(O)(O)(O)]}

chapter 7 - export Flashcards

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