A155-g sample of a unknown substance was heated from 25.0°C to 40.0°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?

Which of the following statements are TRUE? Group of answer choices Dynamic equilibrium indicates that the amount of reactants and products are equal.

Imagine that you have an ideal gas in a 6.70 L container, and that 1450 molecules of this gas collide with a square-inch area of the container at any given instant. If the volume is increased to 40.

What do the arrows and coefficients used by chemists in equations communicate?

Which of the following elements may occur in the greatest number of different oxidation states? (A) C (B) F (C) O (D) Ca (E) Na

The modern view of an electron orbital in an atom can best be described as

How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? 4 KNO3 (s) → 2 K2O (s) + 2 N2 (g) + 5 O2 (g)

What was the ratio in the formula for iron (II) oxide

2C18H38 + 5502 → 36CO2 + 38H2O

What is the opposite of osmosis

Acid rain most often damages stone architecture by causing