36) Which pair represents two forms of an element in the same phase at STP but with different structures and different properties? A) I2 (s) and I2 (g) B) O2 (g) and O3 (g) C) H2 (g) and Hg (g) D) H2 (s) and H2O ()

Why is the ice in a glacier considered a mineral and the water of a river is not

Scientific method steps

For the chemical reaction 2 HBr (aq) + Ba (OH) 2 (aq) ⟶ 2 H 2 O (l) + BaBr 2 (aq) 2HBr (aq) + Ba (OH) 2 (aq) ⟶2H2O (l) + BaBr2 (aq) write the net ionic equation, including the phases.

Anhydrous calcium chloride is used after washing your organic product with water. the purpose of this step is to:

Which energy transformation most likely occurs in a steam iron

Which describes the volume of 1 mol of gas at standard temperature and pressure? ER The volume is greater for a larger mass of gas. The volume is the same for any gas. The volume depends on the size of the container.

When studying historical geology, which type of rock provides the most useful evidence for uncovering what occurred? metamorphic igneous basalt igneous granite sedimentary

Calculate the molar solubility of ca (io3) 2 in each solution below. the ksp of calcium iodate is7.1 * 10-7.

At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.07 m by 3.00 m by 3.77 m? Answer in units of kg.

A gas made up of atoms escapes through a pinhole 0.155 times as fast as h2 gas. write the chemical formula of the gas.