Nickel has 28 protons if it has 31 neutrons, what is it's atomic mass?

A) 3

B) 28

C) 31

D) 59

What is the unit for electric current.

A gas that has a volume of 28 liters, a temperature of 45C, And an unknown pressure has its volume increased to 34 liters and it's temperature decreased to 35C. If I measure the power after the change to be 2.

What are two products made from calcium compounds

State the laws of definite proportions and multiple proportions. Illustrate each with an example.

What is the molar mass of AgF. 51.9g/mol 198.8g/mol 126.87g/mol 99.7g/mol

Is Ba (NO3) 2 covalent or ionic

An alcohol contains only C, H, and O. When a 1.50mg sample of the alcohol is burned completely in oxygen, 3.30mg of CO2 and 1.80mg of H20 are formed. What is the empirical formula for the alcohol?

Using the field meter, does the field strength increase or decrease as you move away from the bar magnet?

Complete each of the definitions with the appropriate phrase. Precision means that measurements are close to Accuracy means that measurements are close to Anawer Bank each other an accepted value |individual several

Acetylene is hydrogenated to form ethane. the feed to the reactor contains 1.4 mol h2/mol c2h2. (find properties of the reactants/products in appendix of book) a.