Quiz about Atoms and molecules

Question 1

What is the correct model of H₂O?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 2

Which formula is a compound?

Accepted Answer

HN

Answer

Cl2

Answer

Br

Answer

N2N3

Question 3

What is the formula for this compound?

Accepted Answer

H3N

Answer

N3H

Answer

HN3

Answer

H3n

Question 4

Which is a compound?

Accepted Answer

NaN2

Answer

N3

Answer

Ca6

Answer

Cl3

Question 5

True or false? Compounds are two or more of the same element

Accepted Answer

false

Answer

true

Question 6

True or false? There are 2 different elements in this formula, HeCl₂

Accepted Answer

true

Answer

false

Question 7

Write the formula

Accepted Answer

COH4

Answer

H3OC

Answer

HC4O

Question 8

Select all compounds

Accepted Answer

He3Cl

Accepted Answer

Ba4Ca

Accepted Answer

H2N3

Answer

Cl5

Answer

Brah3

Question 9

What is arrangement?

Accepted Answer

the shapes of how the elements bond

Answer

The number of elements in each formula

Answer

the bonds of each formula

Answer

the different number of elements

Question 10

Why is it important to capitalize the correct letters in a formula?

Accepted Answer

to be able to separate each element in the formula

Answer

to count how many oxygen

Answer

to see how many electrons they have

Answer

to capitalize the first letter but not the second one

Atoms and molecules

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