What two wars hurt russia

A mole of X reacts at a constant pressure of 43.0 atm via the reaction X (g) + 4Y (g) →2Z (g), ΔH∘=-75.0 kJ Before the reaction, the volume of the gaseous mixture was 5.00 L. After the reaction, the volume was 2.00 L.

The statement that people who exercise for an hour may have lower cholesterol levels is it a hypothesis, law, or observation?

What is the mass of 1.50 mol C5H12

Find the pH of 0.135M NaCN solution. For HCN, Ka=4.9⋅10-10,

A calorie is the amount of energy needed to rise the temperature of 1g of water 1°c. true or false

A student is planning an investigation of an acid-base reaction. Which of the following is not an accepted method of monitoring the progress of the neutralization reaction? Question 16 options: Conductivity meter pH paper Visual indicator

One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now, how old will you be when light that is leaving Arcturus today reaches earth?

What is melted rock and minerals found below earths crust

What do many bases have in common? A. They often release oxygen gas. B. They often form hydrogen ions. C. They often release hydrogen gas. D. They often form hydroxide ions.

What is 3 tenths+4tenths