What is the pH of a 2.10 x 10⁻⁶ M solution of HCl?

Which of the following is not one of the ways that weathered nutrients can return to an ecosystem's environment? 1. dissolved in water. 2. released into the atmosphere as a gas. 3. taken from the soil by plants. 4. taken from plants by animals.

An analysis of a compound showed it contained 87.4% nitrogen and 12.6% hydrogen. the molecular weight was determined to be 32.05 g/mol. what is the molecular formula for this compound?

4. Convert the following: a. 4g mol of MgCl2 to g b. 2 lb mol of C3H8 to g c. 16 g of N2 to lb mol d. 3 lb of C2H6O to g mol

Energy stored in electrical charges is chemical energy potential energy thermal energy kinetic energy

Use a graduated cylinder to add approximately 40 mL of water to the calorimeter. Measure the mass of the calorimeter (no lid) and water to the nearest 0.01 g.

In a pan of boiling water, the water moves in a circular motion.

In the following reaction, which component acts as an oxidizing agent? 10 I - (aq) + 2 MnO4 - (aq) + 16 H + (aq) → 5 I2 (s) + 2 Mn2 + (aq) + 8 H2O (l)

Classify each of the following as a suspension, solution, or colloid. - suspension - solution - colloid A. gasoline B. blood C. mud

What are similarities between beta decay and alpha decay

Suppose there is a decrease in the price of corn. If corn is an input into the production of ethanol, we would expect the supply curve for ethanol to a. shift rightward. b. shift leftward. c. become flatter. d. remain unchanged.