Molecule

What is the formula for water?

• HO₂

• h2o

• H₂O

• HO

Tags

NGSS.MS-PS1-1

Water is a ____ molecule since the Hydrogen atoms have a slight POSITIVE charge

and the Oxygen has a slight negative charge.

• Tropical

• Polar

• Icy

What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• helium and carbon

• oxygen and carbon

Tags

NGSS.MS-ESS2-4

The water molecule is made up of -

• 2 oxygen; 1 hydrogen

• 2 hydrogen; 2 oxygen

• 2 hydrogen; 1 oxygen

• 1 oxygen; 1 hydrogen

Tags

NGSS.MS-PS1-1

The charge of the hydrogen atoms is __. (HINT: it takes 2 mathematical symbols to make a letter H.)

• positive

• negative

• neutral

All ____________ are made up of two or more atoms bonded together.

• atoms

• molecules

• electrons

• elements

Tags

NGSS.MS-PS1-1

Bonds between atoms in a molecule form as a result of the sharing  of?

• formulas

• electrons

• atoms

• chemicals

What type of molecule does this picture show?

• hydrogen peroxide

• water

• carbon monoxide

• sugar

Tags

NGSS.MS-PS1-1

H₂O
This number tells how many molecules are in a chemical equation.

• coefficient

• subscript

• compound

• element

Which of the following is a characteristic of a polar molecule?

• It has an even distribution of electrical charge.

• It has a slight positive charge on one side and a slight negative charge on the other.

• It is composed of only one type of atom.

• It cannot form hydrogen bonds.