Question 2 (1 point) To record our measurements with the most precision of this tool, we think about what if the measurement was between two of these lines.
Imagine if the perfect measurement showed the line exactly between 1.5g and 1.6g. You would estimate that this mass would be
grams.

monkey

Explanation:

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.