How many moles are there in 2.6 x 10^24 atoms of calcium? a.7.0 x 10-24 moles of cab. 4.4 molesc. 168.36 molesd. 10 moles

What is the specific heat of a substance that absorbs 2.5×10^3 joules of heat when a sample of 1.0 ×10^4g of the substance increases in temperature from 10°c to 70°c?

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen