Which equation is associated with the first ionization of sodium?

A. Na (g) - Na + (g) + e-

B. Na (s) - Na + (g) + e-

C. Na (g) Na - (g) + e-

D. Na (g) + e - Na - (g)

Molecules that have longer arrows are moving faster. Which statement describes what is happening in this system? A) Molecules vibrate more as temperature decreases. B) Temperature is not related to the average kinetic energy of a system.

Select all of the following statements that are incorrect. (Multiple Choice) a. Solids, liquids, and gases are all able to act as solutes in a solution. b. Solids, liquids, and gases are all able to act as solvents in a solution. c.

I have to obtain an empirical formula from: Carbon = 1.5 Hydrogen = 3 Oxygen = 1 So since the carbon isn't a whole number then I would multiply each number by an integer so that the results are all whole numbers ... So if I multiply by 2 then ...

use the concept of precipitation to show interaction between the atmosphere and the geosphere. How do you do this?

What is the independent, dependent, control group and constant: A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight.

A living thing that cannot make its own food and must eat other living things for energy

Which best explains why astronauts appear weightless when they are in a space shuttle orbiting Earth? • They are falling toward Earth at the same rate as the space shuttle.

If increase the amplitude how does the velocity change? (No google)

What is the result of multiplying (2.5 * 1010) * (3.5 * 10-7) ? Use the correct number of significant digits.

What is 0.002353 to two significant figures