Explain what you think causes planets to have weaker or stronger gravity than Earth. Predict what gravity would be like on a planet with a mass equal to Earth's but a diameter half the size of Earth's.

Based on the data Thomson collected in his experiments using cathode rays, the concept of atomic structure was modified. Which of the following statements about the atomic structure were validated by his cathode ray experiments? a.

The balanced equation below shows the products that are formed when butane (C4H10) is combusted. 2C5H + 1302 - - - > 8CO2 + 10H2O What is the mole ratio of butane to carbon dioxide? 1:4 1:5 13:8 13:10

List two traits that are similar between the puppies. your answer:

What do atoms of any single element have in common

What is force and it's so unit?

Which term best describes C2O4 2-? polyatomic anion polyatomic cation monatomic anion monatomic cation

Calculate the volume of H2 (g) at 273 K and 2.00 atm that will be formed when 275 mL of 0.725 M HCl solution reacts with 50.0 g Zn (s) to give hydrogen gas and aqueous zinc chloride. (R = 0.08206 L atm/K mol)

Based on this information what is the most likely reason for refrigerating most foods reduce the rate at which they spoil

What is the activity of a 54.7 μCi sample of carbon-14 in becquerels?

2H2 + O2 - > 2H20 What is the mass of water that is produced from 4.00 moles of oxygen gas reacting with hydrogen gas?