Exploring Rational Expressions in Chemistry

Which phase of matter has no fixed shape but a fixed volume?

• Liquid

• Solid

• Gas

• Bose-Einstein condensate

Which state of matter has molecules that are tightly packed with only a little room to vibrate?

• Plasma

• Gas

• Liquid

• Solid

What happens to the physical state of water when it is cooled down from a gas?

• It turns into a liquid

• It turns into a plasma

• It remains a gas

• It turns into a solid

What is the primary difference between elements and compounds?

• Compounds are always solids, elements are not

• Compounds consist of more than one element, elements do not

• Elements are always liquids, compounds are not

• Elements can be broken down chemically, compounds cannot

Which of the following is an example of a pure substance?

• Salt water

• Air

• Copper

• Soil

What type of mixture has the same composition throughout?

• Homogeneous mixture

• Heterogeneous mixture

• Compound

• Element

What is the SI unit for measuring temperature?

• Centigrade

• Fahrenheit

• Celsius

• Kelvin

What unit is used to measure the amount of a substance in the SI system?

• Moles

• Grams

• Liters

• Meters

What does the prefix 'kilo-' signify in the metric system?

• One thousandth

• One hundredth

• One tenth

• One thousand

If you have 1 meter, how many millimeters do you have?

• 1000 millimeters

• 100 millimeters

• 10 millimeters

• 1 millimeter