How many moles are equal to 3.15x10^23 molecules of ethyne, C2H2?

Ammonia that is used in the home has a pH of 11.9. What type of solution is ammonia?

The name iron (II) chloride would indicate that the compound contains A. iron ions with an 11 + charge B. iron ions with a negative charge C. two ions of chlorine D. none of the above D is the wrong answer

Which chemical reaction shows photosynthesis? water + carbon dioxide + sunlight → oxygen + glucose carbon + oxygen → carbon dioxide hydrogen + oxygen → water nitrogen + hydrogen → ammonia

2.00 mL of a 0.75 M solution of potassium permanganaté K2 MnO4 Solution is us od 10 make a 500-00 mL solution. what is the concentration of the new solution.

Are the following elements an electron lender or borrower and how many electrons? Calcium / Gold / Cobalt / copper

what combination will result in a acidic solution? a reaction of strong acid and strong base b reaction of strong acid and weak base c a reaction of weak acid and strong base d reaction of weak acid and weak base

How many moles of sucrose (C12 H12 O11) would be in 7.1 liters of a 0.93 molarity solution of sucrose?

If the temperature is constant what change in volume would cause the pressure of an enclosed gas to increase by a factor of 4

For the reaction of carbon with carbon dioxide to make carbon monoxide, one set of conditions produced a Kc = 1.2 * 10-1. At equilibrium at a certain temperature, the concentration of product was 0.60 M.

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.