All main sequence stars are fusing hydrogen into helium in their cores all main sequence stars are using the same set of reactions in their cores both of the first two statements are true neither of the first two statements are true

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.