After substituting, what is the first step when evaluating x + 3 x minus 4.2 when x = 5? Multiply 3 by 5
Add 5 and 3
Subtract 4.2 from 5
Add 3 and 4.2

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.