Chemistry Quiz 2

How many electrons are in a single bond?

• 2

• 1

• 4

• 6

How many electrons are in a double bond?

• 2

• 1

• 4

• 6

How many electrons in a triple bond?

• 2

• 1

• 4

• 6

An element has 15 electrons. It has 5 in the valence shell. How many electrons does it need to be stable?

An element has 17 electrons. It has 7 in the valence shell. How many electrons does it need to be stable?

An element has 6 valence electrons. How many electrons does it need to be stable?

• 1

• 2

• 3

• 4

Why is Carbon essential to life?

• It can make 2 covalent bonds

• It can make 4 covalent bonds

• It helps us breath

• It creates water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-LS2-3

What is the chemical formula?

• 2HO

• H3O

• O3H

• H2O

Tags

NGSS.MS-PS1-1

What is the chemical formula?