Other Chemistry Answers

Principle of radioactive dating
Carbon & uranium dating

A 60g sample of iron reacts with 26g
of oxygen to form how many grams of iron oxide?
Express your answer using two significant figures.

A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.6 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son?

HDPE pipe may butt fuse joint but PVC not why?

In a nickel bath 30g of Ni are plated after 2 hours with a current intensity of 25 A.
How many liters of H2 will be formed at the same time under standard temperature and pressure?

What mass of solute is contained in 20.0 ml of a 2.09 M barium acetate solution?

What mass of calcium carbonate require to produce 400ml of co2 on heating

Find the mass of
a. the water molecules H2O and
b. The rthyl acohol molecules C2H6O. The atomic masses of H,. C, and O are respectively 1,808, 12.01 and 16.00U

What does it mean for a system to be at a state of equilibrium?

1. When a concentrated solution of bromic (V) acid, HBrO3, is warmed, it decomposes to form bromine, oxygen and water only.

Write an equation for this reaction. The use of oxidation numbers may be helpful.