Which class of biomolecule do molecules belong to

How do atoms achieve noble gas electron configurations in single covalent bonds?

If oxygen is removed from a sample of air as iron rust, what happens to the particle pressure of oxygen in the air?

An unknown substance is oxidized using the reference reaction of hydrogen i hydrogen. The standard cell potential is measured to be 0.367 V.

How much time does it take a cheetah to travel 300 meters at a speed of 15 meters per second

Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca (OH) 2. From the following enthalpy of reaction data and data in Appendix C, calculate ΔH∘f for CaC2 (s): CaC2 (s) + 2H2O (l) →Ca (OH) 2 (s) + C2H2 (g) ΔH∘=-127.2kJ ΔH∘f = kj?

3. Infer A forgotten ice pop lies melting on a deck on a hot summer day. What is the direction of heat flow as the ice pop melts? Is the process endothermic or exothermic? Explain.

How do ionization energies provide evidence for the quantization of the energies of electrons?

What causes lightning? a) thunder b) an electric discharge c) rising warm air d) air masses meeting

In a problem, you are given two pressures and one temperature at constant volume and amount of gas. You are asked to find a second temperature. What law should you use?

How many cups are in a 5-lb. bag of flour?