How can you explain why greasy substances are difficult to wash off?

Explain how index minerals allow scientists to understandthe history of a metamorphic rock

The elements lithium and oxygen react ex - plosively to from lithium oxide (Li2O). How much lithium oxide will form if 2.73 mol of lithium react? The elements lithium and oxygen react ex - plosively to from lithium oxide (Li2O).

Assuming all orbitals are in the same energy level which type of orbital has the lowest energy

Which is generally true of enzymes in cells? A) Enzymes allow reactions to proceed at body temperature. B) Enzymes require co-enzymes to be effective. C) Enzymes are organic compounds that the body needs in small amounts.

Why do you need to use amount in moles to solve stoichiometry problems?

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?

10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF. Calculate the normality of the HF solution.

The number of grams present in 1.35 mol of Fe is

Which can associate a suspect's gun with a crime?

In which era did the first fish appear? a. Carboniferous b. Paleozoic C. Mesozoic d. Permian