Water molecules the chemistry of life

Which of the following describes water molecules in the liquid state?

• water molecules are not moving at all

• water molecules that are broken apart a little bit and moving

• water molecules that are moving around freely with little space between them

Tags

NGSS.MS-PS1-4

which of the following describes water molecules in the solid state?

• water molecules that are moving at an extremely rapid rate

• water molecules that are not moving at all

• water molecules that are broken apart and chipped.

Tags

NGSS.MS-PS1-4

Which atoms bond together to create a water molecule?

• oxygen and hydrogen

• hydrogen and helium

• carbon and oxygen

• helium and carbon

Tags

NGSS.MS-PS1-1

Water molecule is composed of

• 1 Hydrogen atom and 2 Oxygen atoms

• 3 Oxygen atoms

• 2 Hydrogen atoms and 1 Oxygen atoms

• 2 helium atoms and 1 Oxygen atom

Tags

NGSS.MS-PS1-1

What is the definition of the word "molecule"

• at least two different elements of atoms bonded together

• what something is made of

• molecules that are made up of hydrogen and oxygen

• heat and energy

Tags

NGSS.MS-PS1-1

which is not a subatomic particle of an atom

• neutron

• proton

• electron

• hydrogen

Tags

NGSS.MS-PS1-1

A solution is

• a liquid consisting of a uniform mixture of two or more substances

• a liquid consisting of a uniform element of only one substance

• a mixture of solids such as salt and one other substance.

A proton is a negative charge

• true

• false

A proton is a positive charge

• true

• false

An electron is the heaviest subatomic particle

• true

• false