The correct answer (reported to the proper number of significant figures) to the following is

(12.67+19.2) (3.99) / (1,36+11.366) =

List and describe two powerful forces of nature caused by plate tectonics

Hands on mole activity

All arenius acid are also bronsted lowry but all arrhenius base are not bronsted lowry base.

Compared to a 1.0-mole sample of NaCl (s), a 1.0-mole sample of NaCl (l) has a different number of (1) ions (2) empirical formula (3) gram-formula mass (4) electrical conductivity

Rob is conducting an experiment in which he measures a person's body temperature in response to changes in air temperature. What is the independent variable that is manipulated in the experiment?

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.