Red
Blue
Green
Yellow
100

chemical formula for water

H2O

100

element with a chemical symbol O

Oxygen

100

FREE POINTS

FREE POINTS

100

what is the chemical symbol for carbon

C

200

These are scientist who study what all things in the universe that we can see are made of

Chemists

200

a table listing of all the elements is called

periodic table of elements 

200

element with a chemical symbol H

Hydrogen

200

true of false

living things need elements to live and grow

true

300

everything in the universe that we can see are made of these

elements

300

what state of matter is hydrogen at room temperature

gas

300

what does the periodic table show

molecules

elements 

compounds

elements 

300

how many carbon atoms are in this formula

H2C5

5

400

small particles that make up elements

atoms

400
one element that is a liquid at room temperature 

mercury or bromine

400

2 or more atoms fastened together

molecule

400

How many sodium atoms are in this chemical formula

H4C3Na11F2

11

500

a combination of different elements joined together 

compound 

500

which one of these elements is one of the most common elements in the universe?

argon

cerium

carbon

carbon

500

symbols that show the elements and the number of atoms that made up a compound.

chemical formula

500

what element do we need for strong bones

calcium

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