What are some chemical changes that happen at school, home, nature

Which will dissolve in water? Na3PO4 or N2? Explain.

Which is the most likely way a chemist would be involved in the engineering of renewable energy resources? O A. By designing materials that absorb sunlight in solar cells O B.

Do all colors of light have the same energy?

Which is the correct balanced equation for copper (ii) sulfate+aluminium➡️aluminium sulfate + solid copper?

What happens if a cell cannot do cellular respiration? Cell activity speeds up. Cell activity slows down. It remains slow. The cell immediately dies. Cell activity slows down. The cell eventually dies.

How many molecules of CaCL2 are equivalent to 75.9g CaCl2

What is represented in an electron dot diagram

In a first order reaction, what fraction of the reactant will remain after 4 half-lives?

Which trends are observed when the elements in Period 3 on the Periodic Table are considered in order of increasing atomic number? (1) The atomic radius decreases, and the first ionization energy generally increases.

The enthalpy of formation of MX is ΔHf° = - 525 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 139 kJ/mol. The ionization energy of M is IE = 437 kJ/mol. The electron affinity of X is ΔHEA = - 313 kJ/mol. (Refer to the hint).