ions, formulae and equations

Question 1

Name the seven diatomic molecules

Answer 1

Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine (Have No Fear Of Ice Cold Beer)

Question 2

The formula for all acids starts with H. Why?

Answer 2

Because all acids break apart in water to form H+ ions. The more H+ ions, the stronger the acid

Question 3

What is the formula for hydrochloric acid?

Answer 3

HCl

Question 4

What is the formula for nitric acid?

Answer 4

HNO3

Question 5

What is the formula for sulfuric acid?

Answer 5

H2SO4

Question 6

The formula for all bases includes OH. Why?

Answer 6

Because bases break apart in water to form negatively charged OH ions. The greater the concentration of OH ions, the stronger the base

Question 7

What is the formula for sodium hydroxide?

Answer 7

NaOH

Question 8

What is the formula for potassium hydroxide?

Answer 8

KOH

Question 9

What is the formula for ammonia solution (ammonium hydroxide)?

Answer 9

NH4OH

Question 10

What is the general equation for the reaction of an acid and a metal?

Answer 10

Metal + acid –> salt + hydrogen (MASH)

Question 11

What is the general equation for the reaction of an acid and a base?

Answer 11

Acid + base –> salt + water (SWAB)

Question 12

What is the general equation for the reaction of an acid and a carbonate?

Answer 12

Acid + carbonate –> salt + water + CO2

Question 13

What is the formula for a hydroxide ion?

Answer 13

OH-

Question 14

What is the formula for a carbonate ion?

Answer 14

CO3 2-

Question 15

What is the formula for a nitrate ion?

Answer 15

NO3-

Question 16

What is the formula for a sulphate ion?

Answer 16

SO4 2-