General Chemistry

A branch of science that deals with the study of matter, its components and the different changes it undergoes.

• Physics

• Biology

• Earth Science

• Chemistry

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Atoms of the same atomic number but different mass number is known as

• Ions

• Isotopes

• Isomers

• Neutrals

what is the common name of the compound dihydrogen monoxide?

• table salt

• water

• table sugar

• chalk

Tags

NGSS.MS-ESS2-4

Empirical formula provides the smallest______

• whole number ratio

• partial number ration

• half the number ration

• quarter the number ratio

What is a chemical equation?

• A short way to show chemical reaction using symbol

• A way to explain chemcial reactions using words

• Summation of reactant and product

• Writing chemical reaction using formula

Tags

NGSS.MS-PS1-5

What are the two componenets of matter?

• mass and density

• volume and weight

• mass and weight

• mass and volume

Which of the following is an evidence of a chemical change?

• Formation of bubbles

• Boiling

• Freezing

• Melting

Tags

NGSS.MS-PS1-2

What is the charge of an electron?

• positive

• negative

• neutral

• undefined

used to separate a solid substance from a fluid by passing a mixture through a porous material such as filter

• filtration

• decantation

• distillation

• evaporation

a separation technique for separating a liquid from a solution

• filtration

• centrifugation

• decantation

• distillation