One of the starting substances (ingredients) that is involved in a chemical reaction

A sample of propane occupies 274 L at 133 kPa and 316K. Find its volume at 98 kPa and 616K.

Also is it normal for hair to fall out if they don't have enough vitamin d?

Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 47.0 mL. The first bulb has a volume of 30.0 mL and contains 4.49 atm of argon, the second bulb has a volume of 250 mL and contains 2.

How are Alaska and Hawaii alike? A) The both mainly grow plants in greenhouse B) They both have cold, snowy climates C) They both have major fishing industries D) They are both produces of tropical flowers

The ph of a finished water from a water treatment process is 10.74. What amount of. 02 n sulfuric acid, in milliliters, is required to neutralize 1 l of finished water assuming alkalinity is zero

Which of the following has the highest critical temperature? H2 N2 NH3 H2O

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Why is there such a vast climate difference in these two areas of the grand canyon the inner canyon and north rim?

If an objects volume decreases but the mass stays the same why

47 When the pH of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is (1) decreased by a factor of 2 (2) decreased by a factor of 10 (3) increased by a factor of 2 (4) increased by a factor or 10