Question

PLEASE HELP!!!!!!!!

Which of the following cannot he broken down by chemical means?

A.) Matter

B.) Molecule

C.) Element

D.) Compound



Electrons are being shared between atoms in a certain compound which elements could most likely form this compound?

A.) lithium (Li) and fluorine (f)

B.) aluminum (Al) and iodine (I)

C.) sulfur (S) and oxygen (O)

D.) iron (Fe) and chlorine (CI)



Which compound contains ionic bonds?

A.) C2H6

B.) PCI5

C.) CA3N2

D.) SF2



Which of the following chemical equations is balanced?

A.) H2+O2–>H20

B.) 2H2+O2–>2H2O

C.) 4H2+O2–>H2O+O

D.) H2+O2–>H2O+O2



What happens when an acid and a base are mixed?

A.) They will form a stronger acid

B.) They will form a stronger base

C.) They will form a gas

D.) They will neutralize each other

Answer 1

Answer:

1: c. elements

2: b. sulfer and oxygen

3:  ( im not sure. im sorry ):

4:  ( im not sure either ):

5: d. they will neutralize each other

Explanation:

i hope the questions i answered helped! im really sorry i couldnt help on 3 and 4. please forgive :(

good luck on ur test!