For a total mass of water weighing 190 g, the mass of h is 21 g and the mass of o is 169

g. what is the percent composition of h in water

What kind of bond is created by a weak electrical attraction between polar molecules

2. How many grams of sucrose would be needed to prepare 100. mL of a solution of 0.10 M sucrose? Show your calculations.

Cu + 2AgNO3 + Cu (NO3) 2 + 2Ag How many grams of Cu react with 105.2 g of Ag?

How are the salt ducts an adaptation to the iguanas' environment?

A change in the nucleus of an atom that converts the atom from one element to another element is called (1) combustion (3) polymerization (2) neutralization (4) transmutation

A chemist determined by measurements that. 040 moles of gold participated in a chemical reaction. calculate the mass of gold that participated in the chemical reaction. round your answer to significant digits.

10) A screwdriver has the density of 5.5 grams per cubic centimeter. It also has the mass of 2.3 grams. What is the screwdriver's volume?

A chemist weighed out 20.7 g of sodium. Calculate the number of moles of sodium she weighed out

If 1.00 mol of argon is placed in a 0.500-L container at 20.0 ∘C, what is the difference between the ideal pressure (as predicted by the ideal gas law) and the real pressure (as predicted by the van der Waals equation) ? For argon, a=1.

Part 2: Finding Speed and Height Using Energy Directions: Use the KE and GPE equations to solve for speed or height depending on the situation. 1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed? 2.