Gcse additional chemistry

Question 1 of 11

4

does Exothermic reactions give out more energy when new bonds are made

Select one of the following:

True
False

Explanation

Question 2 of 11

4

How many electrons can go in each of the shells around the nucleus?

Select one of the following:

2 in first shell and 8 in the next energy levels
7 in the first shell and 10 in the next energy levels
does not matter

Explanation

Question 3 of 11

3

what is the atomic number

Select one of the following:

number of protons + number of neutrons
number of protons
number of neutrons

Explanation

Question 4 of 11

2

Select from the dropdown lists to complete the text.

An ion is an atom or a group of atoms with a ( positive, negative, neutral ) charge or a ( negative, positive, neutral ) charge.

Explanation

Question 5 of 11

1

In endothermic reactions more energy is needed to break bonds of reactions

Select one of the following:

True
False

Explanation

Question 6 of 11

4

Select from the dropdown lists to complete the text.

Sodium gives a ( yellow/orange, lilac, brick-red, blue-green ) flame, potassium gives a ( lilac, yellow/orange, brick-red, blue-green ) flame, calcium gives a ( brick-red, yellow/orange, lilac, blue-green ) flame and copper gives a ( blue-green, yellow/orange, lilac, brick-red ) flame.

Explanation

Question 7 of 11

2

Why is barium sulfate safe to drink?

Select one of the following:

because its insoluble. ( can't enter the bloodstream)
because it is opaque

Explanation

Question 8 of 11

3

why can simple molecular covalent substances not conduct electricity?

Select one of the following:

because they have no ions
they have weak forces between bonds
they have small molecules

Explanation

Question 9 of 11

1

Ionic bonds form when a metal reacts with a non-metal

Select one of the following:

True
False

Explanation

Question 10 of 11

1

covalent bonds form between atoms of non - metal elements

Select one of the following:

True
False

Explanation

Question 11 of 11

3

	Created by Oscar Patterson over 7 years ago

GCSE Science (Chemistry) Quiz on Gcse additional chemistry, created by Oscar Patterson on 14/03/2017.

Gcse additional chemistry

Question 1 of 11

does Exothermic reactions give out more energy when new bonds are made

Select one of the following:

Explanation

Question 2 of 11

How many electrons can go in each of the shells around the nucleus?

Select one of the following:

Explanation

Question 3 of 11

what is the atomic number

Select one of the following:

Explanation

Question 4 of 11

Select from the dropdown lists to complete the text.

An ion is an atom or a group of atoms with a positive negative neutral( positive, negative, neutral ) charge or a negative positive neutral( negative, positive, neutral ) charge.

Explanation

Question 5 of 11

In endothermic reactions more energy is needed to break bonds of reactions

Select one of the following:

Explanation

Question 6 of 11

Select from the dropdown lists to complete the text.

Explanation

Question 7 of 11

Why is barium sulfate safe to drink?

Select one of the following:

Explanation

Question 8 of 11

why can simple molecular covalent substances not conduct electricity?

Select one of the following:

Explanation

Question 9 of 11

Ionic bonds form when a metal reacts with a non-metal

Select one of the following:

Explanation

Question 10 of 11

covalent bonds form between atoms of non - metal elements

Select one of the following:

Explanation

Question 11 of 11

Select from the dropdown lists to complete the text.

protons relative mass is 1 +1( 1, +1 ), neutrons relative masses 1 0 -1( 1, 0, -1 ) and electrons relative mass is -1 1 0( -1, 1, 0 )

Explanation

An ion is an atom or a group of atoms with a ( positive, negative, neutral ) charge or a ( negative, positive, neutral ) charge.

protons relative mass is ( 1, +1 ), neutrons relative masses ( 1, 0, -1 ) and electrons relative mass is ( -1, 1, 0 )