137 terms

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Are metal oxides acidic or basic?

Basic

Are non-metal oxides acidic or basic?

Acidic

If an element conducts electricity, is it typically a metal or a non-metal?

Metal

If an element doesn't conducts electricity, is it a metal or a non-metal?

Non-Metal

Which are described as acidic: metal oxides or non-metal oxides?

non-metal oxides

Which are described as basic: metal oxides or non-metal oxides?

metal oxides

Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

4 HCl(aq) + MnO₂(s) → MnCl₂(aq) + 2H₂O(l) + Cl₂(g)

Balance the following equation: WO₃ + H₂ → W + H₂O

WO₃ + 3H₂ → W + 3H₂O

What do each of the following state symbols represent: (s), (l), (g), (aq)

(s) - solid. (l) - liquid. (g) - gas. (aq) - aqueous (in solution)

If ammonium nitrate NH₄NO₃ contains the NO₃⁻ ion, what is the formula for the other ion?

NH₄⁺ (ammonium ion)

If calcium carbonate has a Ca²⁺ ion, what is the formula for the other ion?

CO₃²⁻ (carbonate ion)

If iron oxide has the formula Fe₂O₃, what is the name and formula of the iron ion?

iron (III) ion: Fe³⁺

If nitric acid (HNO₃) produces H⁺ Ions, what is formula for the other ion?

NO₃⁻ (nitrate ion)

If sulfuric acid (H₂SO₄) produces 2H⁺, what must the other ion be?

SO₄²⁻ (sulfate ion)

If water produces H⁺, what must the other ion be?

OH⁻ (hydroxide ion)

State the formula for the copper (II) ion

Cu²⁺

State the formula for the iron (II) ion

Fe²⁺

State the formula for the iron (III) ion

Fe³⁺

State the formula for the lead (II) ion

Pb²⁺

State the formula of the ammonium ion

NH₄⁺

State the formula of the carbonate ion

CO₃²⁻

State the formula of the hydroxide ion

OH⁻

State the formula of the nitrate ion

NO₃⁻

State the formula of the silver ion

Ag⁺

State the formula of the sulfate ion

SO₄²⁻

State the formula of the zinc ion

Zn²⁺

State the formula of the zinc ion

Zn²⁺

What is the formula for aluminium chloride?

AlCl₃

What is the formula for aluminium nitrate?

Al(NO₃)₃

What is the formula for aluminium oxide?

Al₂O₃

What is the formula for aluminium sulfate?

Al₂(SO₄)₃

What is the formula for aluminium sulfide?

Al₂S₃

What is the formula for ammonium chloride?

NH₄Cl

What is the formula for ammonium sulfide?

(NH₄)₂S

What is the formula for calcium bromide?

CaBr₂

What is the formula for calcium hydroxide?

Ca(OH)₂

What is the formula for calcium nitrate?

Ca(NO₃)₂

What is the formula for calcium nitride?

Ca₃N₂

What is the formula for copper (II) fluoride

CuF₂

What is the formula for copper (II) sulfide?

CuS

What is the formula for iron (II) oxide

FeO

What is the formula for iron (II) phosphide?

Fe₃P₂

What is the formula for iron (III) bromide?

FeBr₃

What is the formula for iron (III) nitride

FeN

What is the formula for lithium carbonate?

Li₂CO₃

What is the formula for lithium chloride?

LiCl

What is the formula for lithium nitride?

Li₃N

What is the formula for magnesium carbonate?

MgCO₃

What is the formula for magnesium chloride?

MgCl₂

What is the formula for magnesium iodide?

MgI₂

What is the formula for magnesium oxide?

MgO

What is the formula for magnesium sulfate?

MgSO₄

What is the formula for potassium bromide?

KBr

What is the formula for potassium chloride?

KCl

What is the formula for potassium hydroxide?

KOH

What is the formula for potassium sulfate?

K₂SO₄

What is the formula for potassium sulfide?

K₂S

What is the formula for silver carbonate?

Ag₂CO₃

What is the formula for silver nitrate?

AgNO₃

What is the formula for silver sulfate?

Ag₂SO₄

What is the formula for sodium chloride?

NaCl

What is the formula for sodium fluoride?

NaF

What is the formula for sodium hydroxide?

NaOH

What is the formula for sodium nitrate?

NaNO₃

What is the formula for sodium oxide?

Na₂O

What is the formula for sodium phosphide?

Na₃P

What is the formula for strontium phospide?

Sr₃P₂

What is the formula for vanadium (V) oxide?

V₂O₅

What is the formula for zinc carbonate?

ZnCO₃

What is the formula for zinc nitrate?

Zn(NO₃)₂

What is the formula for zinc sulfate?

ZnSO₄

Are carbon dioxide and sulfur dioxide acidic or basic?

Acidic as carbon and sulfur are non-metals

Hydrogen and helium have both been used in balloons. State one advantage of using helium instead of hydrogen

Helium is not flammable

Name the compound formed when magnesium reacts with oxygen

magnesium oxide

What colour flames to sulfur, carbon and magnesium produce when they burn in air?

Sulfur = blue, Carbon = yellow/orange, Magnesium = white

What happens is a large amount of hydrogen is burnt?

Explosion

What happens when a small amount of hydrogen is burnt in a test tube?

Squeaky pop

What observation is made when carbon burns in air?

Yellow flame

What observation is made when sulfur burns in air?

Blue Flame

What observations are made when magnesium burns in air?

Bright white light. White solid left behind.

When carbon burns in air, is the oxide acidic or basic?

Acidic

When magnesium burns in air, is the oxide acidic or basic?

Basic

When sulfur burns in air, is the oxide acidic or basic?

Acidic

How can metal carbonates be used to produce carbon dioxide?

Themal Decomposition: when metal carbonates are heated, they break down

Write the word and chemical equation for the thermal decompostion of calcium carbonate, CaCO₃

calcium carbonate → calcium oxide + carbon dioxide CaCO₃ → CaO + CO₂

What is the pH of a neutral solution?

7

What is the pH of a strong acid?

0-3

What is the pH of a strong alkali?

11-14

What is the pH of a weak acid?

4-6

What is the pH of a weak alkali?

8-10

What is the typical range of the pH scale?

0-14

What scale typically ranges between 0 and 14?

pH scale

With universal indicator, what is the pH of a blue solution?

8-10

With universal indicator, what is the pH of a green solution?

7 (neutral)

With universal indicator, what is the pH of a purple solution?

11-14

With universal indicator, what is the pH of a red solution?

0-3

With universal indicator, what is the pH of a yellow solution?

4-6

What is the universal indicator colour of a neutral solution?

Green

What is the universal indicator colour of a pH 0-3 solution?

Red

What is the universal indicator colour of a pH 11-14 solution?

Purple

What is the universal indicator colour of a pH 4-6 solution?

Yellow

What is the universal indicator colour of a pH 7 (neutral) solution?

Green

What is the universal indicator colour of a pH 8-10 solution?

Blue

What is the universal indicator colour of a strongly acid solution?

Red

What is the universal indicator colour of a strongly alkali solution?

Purple

What is the universal indicator colour of a weakly acid solution?

Yellow

What is the universal indicator colour of a weakly alkali solution?

Blue

What is an acid?

An acid is a source of hydrogen ions, H⁺

What is an alkali?

An alkali is a source of hydroxide ions, OH⁻

Can a base neutralise an acid?

Yes

What is a base?

A substance which can neutralise an acid, forming salt and water only

acid + alkali →

acid + alkali → salt + water

acid + base →

acid + base → salt + water

acid + metal →

acid + metal → salt + hydrogen

acid + metal carbonate →

acid + metal carbonate → salt + carbon dioxide + water

Describe the observations of the reaction of aluminium and dilute hydrochloric acid

fizzing and metal disappears

Describe the observations of the reaction of calcium carbonate and dilute hydrochloric acid

fizzing and solid disappears

Describe the observations of the reaction of magnesium and dilute sulfuric acid

fizzing and metal disappears

Describe the observations of the reaction of zinc and dilute hydrochloric acid

fizzing and metal disappears

Give the formula of sulfuric acid

H₂SO₄

Give the name of the substance which has formula HNO₃

nitric acid

Give the name of the substance which has the formula HCl (aq)

hydrochloric acid

hydrochloric acid + magnesium →

hydrochloric acid + magnesium → magnesium chloride + hydrogen

hydrochloric acid + sodium hydroxide →

hydrochloric acid + sodium hydroxide → sodium chloride + water

nitric acid + calcium carbonate →

nitric acid + calcium carbonate → calcium nitrate + carbon dioxide + water

sulfuric acid + copper oxide →

sulfuric acid + copper oxide → copper sulfate + water

What two observations can be made when a metal reacts with an acid?

Bubbles. Metal disappears.

Write the word equation to represent the reaction between copper oxide and sulfuric acid

sulfuric acid + copper oxide → copper sulfate + water

Write the word equation to represent the reaction between nitric acid and copper carbonate

nitric acid + copper carbonate → copper nitrate + carbon dioxide + water

Is ammonia acidic or basic?

Basic

Is iron (III) hydroxide acidic or basic?

Basic (as metal hydroxides are basic)

Is magnesium oxide acidic or basic?

Basic (as magnesium is a metal)

What is an alkali compared to a base?

Alkalis are bases that are soluble in water

A gas is bubbled through limewater and the limewater goes cloudy. Identify the gas.

Carbon dioxide

Describe the test for carbon dioxide gas

Bubble the gas through limewater and see if it goes cloudy

Describe the test for hydrogen gas

Use a lit splint to see if the gas pops

In the test of a gas, a lit splint gives a squeaky pop. What is the gas?

Hydrogen