What is the mass number of an atom of 5 protons and 7 nuetrons

Most of the alpha particles passed directly through the gold atoms undisturbed what does this evidence suggest about the structure of the gold atoms?

The general formula for the alkane series is:

What is the ph of 1l of a acetic acid buffer?

What form of the ideal gas law would you use to calculate the number of moles of a gas? A. T = pv nR B. n = PV RT C. v = nRT p D. p = nRT v

Is kerosene a fossil fuel?

Consider a situation in which 211 g g of P4 P 4 are exposed to 240 g g of O2 O 2 . What is the maximum amount in moles of P2O5 P 2 O 5 that can theoretically be made from 211 g g of P4 P 4 and excess oxygen?

What is the total pressure when 0.400 g of H2, 2.00 g of N2, and 10.5 g of CO2 are injected into a 10.0 liter flask at 273 K?

The balanced chemical equation for the combustion of methane is: CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) Which of the following statements concerning this chemical equation is/are correct? 1.

In one kind of nuclear reaction, two nuclei fuse, or join together, to form a larger nucleus. This kind of reaction happens only at very high pressures. Explain why such high pressures are necessary to cause these reactions to occur.

Check the approach to obtain the correct conversion equation. Use the temperature in °F to find the temperature in °C. °C