At room temperature, more then half of the nonmetals elements are?

A) alloys

B) gases

C) liquids

D) solids

The chemical formula of propane is C3H8. Which number correctly uses scientific notation to represent the number of atoms in 2.00 moles of propane?

Why do water and hydrogen peroxide have different properties

What is the chemical formula for aluminum nitride? A) Al3 Eliminate B) AlN3 C) Al3N3 D) AlN

Be sure to answer all parts. Enter your answer in scientific notation. What is the length in inches (in) of a 100-meter soccer field?

How much heat is required to change the temperature of 100 grams of water from 25 to 55oc?

Why are Van der Waals forces important? A) They determine how strong dipole moments will be in polar covalent molecules B) They are the strongest type of intermolecular force that can act on polar and non-polar molecules C) They are primary

When heat is added to or removed from a substance, it may change its state. What state will most likely result if heat is added to a liquid?

Chemical Reactions Lab Procedures: 1. Place a 1cm long piece of white chalk in a clear plastic cup. 2. Add 5 mL of vinegar to the cup. 3. Record your observations. If you were performing the procedures above you would need to A.

How many moles of oxygen are in 0.53 moles of co 22?

The car wit fastest acceleration is the tempest. it has an acceleration of 6.1 m/s. suppose the car accelerates from rest to a final speed of 30. m/s. how long does it take the tempest to reach this speed?