Salt water is best described as .
A.
a mixture
B.
an element
C.
a pure substance
D.
a compound

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.