The mass of a neutron is

a. about the same as that of a proton.

c. double that of a proton.

b. about the same as that of an electron.

d. double that of an electron.

The mean radius of the Earth is 6,371 km, and 70.8% of its surface is covered by water. What is the surface area of the Earth covered by land?

Which sentence is a scientific statemWhich sentence is a scientific statement? A. There is a substance around us that cannot be detected. B. Kids should go to school for 12 years. C. Experimentation is the best way to obtain knowledge. D.

How many moles are equal to 28 grams of CaCO3

The student's lab manual says to mix some of his Na2CO3 solution with an aqueous solution of copper (II) sulfate (CuSO4) What evidence of a chemical reaction would he expect to see? Explain your answer.

Why dose the moon change shape

Consider the polymerization of styrene in toluene at 60°C initiated by di-t-butylperoxide for a solution containing 0.04 mol of initiator and 2 mol of monomer per liter. The initial rates of initiation, Ri, and propagation, RP, are found to be 1.

Which of the dollowing isotopes have 8 neutrons in the nucleus? 0-15 0-17 C13 O C14

Click the DeltaH is an Extensive Property button within the activity, and analyze the relationship between the two reactions that are displayed.

The fundamental unit used to measure mass is?

What are some ways population size is limited within an ecosystem?