What substance can act as catalysts in the body?

Which halogens are found in period 5 on the periodic table?

For the reaction 6 Li + N2 → 2 Li3N, what is the maximum amount of Li3N (34.8297 g/mol) which could be formed from 14.18 mol (6.941 g/mol) of Li and 16.37 mol of N2 (28.0134 g/mol) ? Answer in units of mol.

Write the balanced equation for the neutralization reaction between HI and Ba (OH) 2 in aqueous solution. Include physical states.

Which equation demonstrates that nuclear fusion forms elements that are heavier than helium? Superscript 2 subscript 1 upper H plus superscript 3 subscript 1 upper H right arrow superscript 4 subscript 2 upper H e plus superscript 1 subscript 0 n.

In which way are Mercury and Venus similar? They both rotate from east to west. They are both small and rocky. They both have thick atmospheres. They both are similar to Earth in structure.

What is the mass of 4.6 moles of helium gas?

In the process of ionization, what is the relationship between the second ionization energy and the third ionization energy?

What are examples of convection?

Find the mass of 1 mole of cuprous oxide, or cu2o. assume the atomic mass of copper is 64 and oxygen is 16.

Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has = 37.6 kJ/mol and = 40.7 kJ/mol. Why is there such a large difference between and, but not for and?