Ca (s) + 2hno3 (aq) →ca (no3) 2 (aq) + h2 (g) part a identify the oxidizing agent. identify the oxidizing agent. h2 (g) hno3 (aq) ca (s) ca (no3) 2 (aq)

Use the specific heat of water to determine how much heat is required to raise the temperature of 50.0g of water from 35oc to 55oc.

The density of seawater is 1.025 g/ml what is the mass of 100,000 ml of seawater in grams

A base has a molarity of 1.5M w. R. T the hydroxyl ion concentration. If 7.35 cm3 of this base is taken and diluted to 147 cm3, then what is the concentration of the hydroxyl ion.

A mixture of 1.374 g of H_2 and 70.31 g of Br_2 is heated in a 2.00 L vessel at 700 K. These substances react as follows: H_2 (g) + Br_2 (g) 2 HBr (g) At equilibrium the vessel is found to contain 0.566 g of H_2.

Which statement explains why some elements decay and others do not? A) Elements that decay have fewer than 50 protons. B) Elements that decay have an equal number of protons and neutrons.

According to the ph scale, what is the approximate ph of acid rain? a. 4.0 b. 4.5 c. 5.0 d. 5.5

You find a little bit (0.150g) of a chemical marked Tri-Nitro-Toluene, and upon combusting it in oxygen, collect 0.204 g of CO2 and 0.030 g H2O (we'll assume that these are the products, along with nitrogen).

What reaction occurs when two amino acids are put together?

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains of water at. During the reaction of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath.

An aluminum can has a height of 4.83 inches, a diameter of 2.60 inches, and a uniform wall/end thickness of 0.0112 inches.