What is the electron configuration for a calcium atom? 1s2, 2s2, 2p6, 3s2, 3p6, 4s2 1s2, 2s2, 2p6, 3s2, 3p6, 4s1 2s2, 2s2, 2p6, 3s2, 3p6, 4s1 1s1, 2s2, 2p6, 3s2, 3p6, 4s1

Which one of the following statements about absolute zero is correct? (a) At absolute zero, the volume of an ideal gas is zero. (b) At absolute zero, ideal gases freeze to give solids. (c) At absolute zero, solid and liquid water are at equilibrium.

A substance that exist in the gaseous state at room temperature

When electricity is added to water, water breaks down and becomes hydrogen gas and oxygen gas. This is a chemical change because A. energy has been added. B. a liquid has become a gas. C. hydrogen and oxygen are chemicals. D.

Which statement is true about word equations with regards to chemical reactions

Concentration of Ca (OH) 2 is 10^-2 ... find its pH value. Explain too.

If two moles of aluminum chloride are dissolved in two liters of water, how does the vapor pressure of the water change?

What is the cornaviris?

How to find the moles of vinegar if you only know what the volume is

Be sure to answer all parts. A concentration cell consists of two Sn/Sn2 + half-cells. The electrolyte in compartment A is 0.23 M Sn (NO3) 2. The electrolyte in B is 0.87 M Sn (NO3) 2.

Explain why the radius of an atom cannot be measured directly. (6.3)