Joshua dissolved sugar in water to create

A modern penny weighs 2.5 g but contains only 0.063 g of copper (cu). how many copper atoms are present in a modern penny?

The ksp of nickel (ii) carbonate, nico3, is 1.42 * 10-7. calculate the molar solubility of this compound.

What is the mass in grams of ammonia gas in 1.204 x 10^24 molecules of ammonia gas, NH^3, at STP?

An insulated box is initially divided into halves by a frictionless, thermally conducting piston.• On one side of the piston is 1.5 m3 of air at 400 K, 4 bar.• On the other side is 1.5 m3 of air at 400 K, 2 bar.

Consider the following equation. 2H2 (g) + O2 (g) 2H2O (g); ΔH is negative. Which statement is true? The reaction is endothermic from left to right. Increased pressure would increase the rate of forming water vapor.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda