What is the approximate mass of a proton?

(1) 1 u

(2) 0.0005 u

(3) 1 g

(4) 0.0005 g

3. What property from the periodic table does the number of fingers on each hand indicate?

How has overpopulation changed the rule about recycling and use of resources

What is the ratio of ions needed to produce neutral potassium chloride

How many grams of NaCl are needed to prepare 1.20 liters of a 2.00 M solution? A) 70.2 g B) 97.5 g C) 117 g D) 140 g

Which mass of urea CO (NH2) 2 contains same mass of nitrogen as 101.1 g of potassium nitrate?

Which is true about dissolving a polar substance in water? A) the solvent particles are all nonpolar molecules B) the solute particles are carried into the solution C) the solute particles have no attraction for the solvent molecules D) the solute

Which societal problem can be solved, in part, by scientists identifying areas of high biodiversity? A. reducing the amount of pollution B. finding affordable housing C. protecting the environment D. providing access to clean water

Brianna wanted to compare the densities of two different solids of the same size 6cm3 (same volume) to see which one was more dense. Solid A had a mass of 2 grams and Solid B had a mass of 0.5 grams.

Which type of bond is present within a water molecule

Every oxygen atom has 8 electrons. what can you learn from the electron configuration of oxygen