Magnesium has two electrons in its valence shell, whereas chlorine has seven. Which element is more likely to form a positive ion A magnesium B magnesium C chlorine D chlorine

For which of the following activities might you want to hire a chemist

Write a balanced equation for the combustion of 1 mol of c8h18 (l). express your answer as a chemical equation including improper fractions for fractional coefficients. identify all of the phases in your answer.

A quantum is a unit of: A. energy B. speed C. force D. radiation

For each of these cofactors, explain its chemical function and give an example of a particular enzyme that would use it: TPP, PLP, biotin, FAD, NADPH

How many molecules of O2 are present in a 3.90L flask at a temperature of 273K and a pressure of 1.00 atm

If we know that 10.0 cm3 of ice has a mass of 9.19 g what is the density of ice

1. The is the particle in the nucleus of the atom that carries a positive charge and is counted to identify the atomic number. What's the answer

How many grams are there in 5.00 moles of lead Pb?

A large body in space that orbits a star and does not produce light of its own

Which type of substance is an electron-pair acceptor? O Lewis base O Brønsted-Lowry acid O Brønsted-Lowry base O Lewis acid