4. In the chemical equation H202 (aq) → H2O (l) + O2 (g), the O2 is a

O

A reactant

Bcatalyst

C

solid

OD product

Why is the ocean water near the poles less salty than other places? Question 8 options: Rain washes mineral ions from the land into water. Fresh water from the glaciers are melting into it. Active underwater volcanoes erupt nearby.

What kind of covalent bond forms between two fluorine atoms?

How long was the ice flow in the first tray? After the ice melted, how was the sand in the first tray different from the sand in the second tray? What was the sand depth in the first tray at the beginning of the experiment?

Heat flows from water in one container to another. What difference between the two samples of water causes heat to flow?

Where do the OH - ions go as additional acid is added? 1. they evaporate. 2. They combine with excess H + ions to form more water. 3. They remain in solution at the same concentration. 4. They remain in solution but change concentration.,

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?

A reaction of 12.640 g of copper oxide with 0.316 g hydrogen produces 2.844 g of water and Xg of copper. X=_9

If i burn steel wool inside a closed jar or bottle will the oxygen be completly gone

700 grams of glucose reacted fully with oxygen How many moles of gas will be created

The uranium used for nuclear fuel exists in nature in several minerals. Calculate how many moles of uranium are in 8.00 moles of the following: 1. carnotite, K2 (UO2) 2 (VO4) 2 • 3H2O 2. uranophane, CaU2Si2O11 • 7H2O 3.