This or That
Math Practice!
Vocabulary
All Things Energy
Classification
100

A rotting apple

Chemical Change

100

21.3 g of Silver combines with Sulfur to create 81.1 g of AgS. How much sulfur was used?

81.1 - 21.3 = 59.8 g AgS

100

Anything tangible

Material

100

Unit of energy versus metabolism unit for energy

Joule (J) and Calorie

100

State of matter with no definite shape or volume

Gas

200

The density of water - Intensive or Extensive?

Intensive, doesn't matter how much water I have. The density is always the same!

200

Carbon and oxygen make up 2 compounds, CO and CO2 . Carbon weighs 12 g and oxygen weighs 16 g and 32 g respectively. Does this follow the Law of Multiple Proportions? 

Yes, because the ratio of each compound is increasing at a fixed ratio.

200

Liquid to Gas

Vaporization

200
Temperature moves from an area of what to what?

High to low temperature.

200

Salt dissolved in water. Heterogeneous or Homogeneous?

Homogeneous

300

Conductivity, Intensive or Extensive?

Intensive, doesn't depend on how much of something you have.

300

1.01 g of sodium (Na) reacts with 17.3 g of chlorine (Cl) forming table salt, NaCl.

What are the reactants and products?

How much NaCl is formed?

18.31 g NaCl

300

Anything that takes up space or has mass

Matter

300

Going from a solid to a liquid to a gas. How is temperature changing from state to state?

Temperature is increasing! More energy.

300

Table salt. Element or compound?

Compound

400

Mercury vaporization. Chemical or Physical?

Physical, it's just a phase change from liquid to gas.

400

A 181 g sample of Advil is made up of 81.9 g of oxygen, 62.1 g of carbon, and 37 g of hydrogen. What is the percent composition of each element?



(81.9 / 181) x 100 = 45%

(62.1 / 181) x 100 = 34%

(37 / 181) x 100 = 20%

400

Define an element versus a compound.

Element - something on the Periodic Table, can't be broken down into anything smaller.

Compound - 2 or more elements together.

400

State of matter with the most energy (Solid, Liquid, Gas).

Gas

400

Baking a cake. Chemical of Physical?

Chemical

500

Flowers growing. Chemical or Physical?

Chemical, putting water + sun = energy for plant!

500

A 436 g sample of a substance is composed of 29.3% Silver and 70.7% Carbon. How many grams of each are present?

Remember sig fig rules.

128 g Silver and 308 g Carbon

436 g x .293 = 128 g

426 g x .707 = 308 g

500

Going from a solid to a gas. (Dry ice!)

Sublimation

500

State of matter that makes up 99% of visible matter in our universe.

Plasma
500

The ocean. Heterogeneous or Homogeneous?

Heterogeneous.

Not just salt water, also organisms and trash etc.

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