The rounded atomic mass of helium

if the stabilized has on the display of a digital top loading balance reads 3.070 g which digits should have recorded on your data page? How many significant figured does your record number have?

How many miles are in 28 grams of carbon dioxide

H the primary intracellular and extracellular anions (negatively charged ions) and cations (positively charged ions) with their electrolytes:

Polyethylene is a synthetic polymer or plastic with many uses. 1.36 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of solution, and the osmotic pressure was found to be 1.86 torr at 25oC.

Explain why the quantum number set (3, 2, 3, - ½) is not possible for an electron in an atom.

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.

How many moles of oxygen react with 0.23 moles of NH3

How many moles of carbon do you have in 100 quadrillion carbon atoms? report answer to 2 sig figs

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?