The nucleus is:

a. the center of an atom

c. specified by mass number

b. specified by atomic number

d. all of the above

How are minute and seconds are related to degrees

Gravitational force on the moon is 1/6th (0.165) of that on Earth. If a person weighs 140 pounds on Earth, what is his weight on the moon?

Which statement best describes electrolysis? O O O O Electrolysis stores electrons in an aqueous solution. Electrolysis converts chemical energy into electrical energy. Electrolysis separates protons and electrons in an electrolyte.

Na + CI2 = 2NaC is It balanced

A 1.00-degree increase on the Celsius scale is equivalent to a 1.80-degree increase on the Fahrenheit scale. The temperature of a fluid increases by 48.0°C. What is this increase in degrees Fahrenheit? 49.8°F 48.0°F 26.7°F 86.4°F

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?