When an element exists in nature by itself, it must have a charge of

Wj at is the density of a cube that had a mass of 25 grams and a volume of 125 cm^3

Water and heat the water to 50 C7 6) How much energy would it take to heat 40g of water from 80C to 100C. turni steam, and then heat the steam from 100C to 180C?

Why does the mass number equal the total number of protons and neutrons? and what is mass number of atoms expressed in the Periodic table?

How many molecules are in 1.52 moles in water?

A. mine functional groups are fully protonated, and can be described with the chemical formula: N+H3. B. Caboxylic acid functional groups are deprotonated, and can be described with the chemical formula: COO-. C.

Give an example of how microorganisms might meet each of the challenges of life

What is the molarity of a solution that contains 4.53 moles of lithium nitrate in 2.85 liters of solution? 0.874 M 0.629 M 3.77 M 1.59 M 2.57 M 1.98 M

In which type of unconformity is the eroded rock tilted or folded? disconformity nonconformities angular unconformity scarp unconformity

A liquid solution can be made from solid, liquid, or gas solute.

How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 850 c?