Mention fire fighting equpments

How many grams of potassium iodine, kl, must be added to 500.0 grams of water to produce a 6.00% solution?

The most abundant gas in the atmosphere is oxygen. True False

The first dissociation constant of a diprotic acid is always larger than the second. a. True b. False

Dome mountains are formed by vertical forces that push rock layers upward. True or False

Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don't stick. He guesses that the door of the refrigerator id made of non magnetic substance. What stage of scientific investigation does his guess represent?

If I use the dropped to add 10 mL of drink mix to 50 mL of water, what is the percent by volume of the drink mix in the solution?

Which elements properties form the basis for all life

A 2.0 L flexible container holds 5.0 moles of oxygen (O2) gas. An additional 15.0 moles of nitrogen gas (N2) is added to the container. What is the new volume of the container? a. 8.0 L b. 0.13 L c. 0.50 L d. 6.0L

How are complete ionic and net ionic equations written for chemical reactions in aqueous solutions

Only producers perform ... A) photosynthesis B) respiration C) both A & B D) neither A or B