Chemistry

Reactions

100

What is released in an exothermic reaction?

Heat

200

Which reaction absorbs energy?

endothermic

300

Combustion is endo or exothermic?

Exothermic

400

What type of reaction is respiration?

Combustion

500

What type of reaction is this:

H₂SO₄ + NaOH --> NaSO₄ + H₂O

Neutralisation

600

What happens to matter in a chemical reaction?

It gets rearranged

The Periodic Table

100

What are the columns of the periodic table called?

Groups

200

What are the rows of the periodic table called?

Periods

300

What are the middle elements on the periodic table known as?

Transition Metals

400

What do the elements in a group have in common?

Same number of electrons in the outer shell

500

What happens to the size of an atom as you move from left to right on the periodic table?

The atoms get smaller

600

What are the elements in group 7 called?

Halogens

Polyatomic Ions

100

What is the chemical formula of a hydroxide ion?

OH^-

200

What does polyatomic mean?

made of many atoms

300

What is this polyatomic ion called: SO₄^2-

Sulfate

400

What is this polyatomic ion called: CO₃^2-

Carbonate

500

What is the chemical formula of ammonium?

NH₄⁺

600

What is the chemical formula of acetate?

CO₃COO^-

Ionic Compounds

100

Name this compound: NaCl

Sodium Chloride

200

Name this compound: MgO

Magnesium Sulfate

300

What is the chemical formula of Barium Sulfate?

BaS

400

What is the chemical formula of Potassium Nitride?

K₃N

500

What is the chemical formula of Lithium Hydroxide?

LiOH

600

What is the chemical formula of Sodium Carbonate?

Na₂CO₃

Acids + Bases

100

What is the unit we use to measure acidity/basicness?

pH

200

Acid + base =

salt + water

300

What colour is universal indicator in an acid?

Red

400

What type of reaction produced carbon dioxide?

Acid-carbonate

500

When hydrochloric acid and magnesium react, what is produced?

magnesium chloride and hydrogen gas

600

What is the chemical formula for Nitric Acid

HNO₃

Reactions with oxygen

100

What are the products of respiration?

Carbon dioxide + water (+ energy)

200

Corrision is the reaction that occurs between a metal and what?

Oxygen

300

What are two signs of incomplete combustion?

Formation of soot, black smoke, orange flame

400

What is the common name for iron oxide?

Rust

500

What is the chemical formula of methane?

CH₄

600

What is the chemical formula for glucose?

C₆H₁₂O₆

In the news

100

Which streaming service has officially started cracking down on users that share an account between different homes?

Netflix

200

A live action remake of an animated Disney classic reached Australian cinemas this week. Which Disney princess is featured?

Ariel (the little mermaid)

300

Which 80's 'Queen of Rock' died this week?

Tina Turner

400

Where in Sydney was there a massive building fire yesterday?

Surry Hills (near central station)

500

Which team is currently at the top of the NRL (Rugby League) ladder?

Penrith Panthers (on for and against!) Currently 6 teams tied on the same number of points

600

It’s almost June, which means HECS/HELP student debts are about to be indexed by what percentage?

7%