Symbols
Chemistry 1
Chemistry 2
Riddle
100

What is the chemical symbol for Sodium?

Na

100

What is the first element in the periodic table?

Hydrogen

100

What does the arrow point to in a chemical equation?

The products.

100

How many months have 28 days?

All of them

200

What element has the Symbol K?

Potassium

200

Which atom is heavier: Carbon or oxygen?

Oxygen

200

Is H20 an element, compound or mixture?

Compound

200

DOUBLE POINTS: 10 SECONDS TO ANSWER

What do you put in a toaster?

What do cows drink?

Bread

Water

300

NaCl is the chemical symbol for what common household item?

Table Salt

300

What is the difference in regards to particle arrangement between a solid and a gas?

Gasses take up the volume of a container, they have greater distances between particles.

Solids have a fixed volume and have less space between particles.

300

What happens to the particles when you cool an object?

Their vibrations slow down and they contract 

300

What did the scientist say when he found 2 atoms of helium?

HeHe

400

Air is made up of the following elements and compounds: N2 O2 CO2 H2O Ar. Name them all. 

Nitrogen Oxygen Carbon Dioxide Water Argon

400

What happens to iron when it is exposed to oxygen in the presence of water?

Rust

400

What is chemistry?

the branch of science concerned with:
- the substances of which matter is composed
- their properties and reactions
- the use of such reactions to form new substances.

400

What is the center of gravity?

The letter 'v'

500

Identify which elements are in the word PSYCHIC. (500 points for at least 5 DIFFERENT elements).

Phosphorous, Sulfur, Yttrium, Carbon (x2), Hydrogen, Iodine 

500

How do know the atomic weight and atomic number of elements? HINT: subatomic particles.

Weight: number of neutrons + number of protons

Number: number of protons/electrons

500

What is the difference between a chemical change and a physical change?

New substances are formed in chemical reactions, they require/emit energy.

Physical changes can be a change of state, form or shape as long as no new substance has been formed.

500

What element is a 'girl's best friend'?

Carbon