A 32.78 g sample of a substance is initially at 22.7 °c. after absorbing 2017 j of heat, the temperature of the substance is 173.2 °c. what is the specific heat (c) of the substance?

We use a kind of plant growth hormone to regular plant growth. We dissolve 5mg of the solution into 2kg of water. What is the dosage of the solution in ppm?

Two completely different compounds may contain identical elements. True False

7.) A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To what temperature must the gas in the syringe be heated/cooled in order to have a volume of 435 mL at 2.

Explain the changes that take place at the molecular level when a substance is superheated or supercooled?

How is an analogy different from a metaphor

The balanced equation below represents the reaction between magnesium metal and hydrochloric acid to produce aqueous magnesium chloride and hydrogen gas. Mg (s) + 2HCl (aq) = = > MgCl2 (aq) + H2 (g) A piece of Mg (s) has a volume of 0.

What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

Think about how pressure relates to volume and how gas behavior would change in different volumes. Which of the following will have the largest positive value for Sº? A) 1 mole of helium gas at 1 atm pressure.

Does a reaction stop once it has reached equilibrium? Explain

8 l of water at 19 ∘c are mixed with 1.1 l of water at 47 ∘c in an insulated container. what is the final temperature of the system? express your answer in ∘c