Which mineral is ranked highest on the Mohs scale? A. Talc incorrect answer B. Calcite incorrect answer C. Quartz incorrect answer D. Diamond incorrect answer

The atomic masses of two isotopes of silver are 105 and 111. The chemical symbol for silver is Ag. (a) What are the number of protons and neutrons in each of the two isotopes?

Is vodka a pure substance a homogeneous mixture or a heterogeneous mixture?

Nonmetal oxides can react with water to form acids. For example, carbon dioxide reacts with water to form carbonic acid: CO2 H2O H2CO3. (1) Write an equation to show how diiodine pentaoxide reacts with water to form an acid. Do not include states.

How many grams of Cabr2 would be needed to create 450 mL of a 2.00 M solution?

A mutation occurs that prevents a cell from taking in the glucose that it needs for energy production. What is most likely to happen?

Alkalosis is a condition that occurs when: Select one: a. the level of carbon dioxide in the blood increases. b. dangerous acids accumulate in the bloodstream. c. slow, shallow breathing eliminates too much carbon dioxide. d.

What is the total number of atoms contained in 2.00 moles of nickel?

What type of reaction is shown below? XY + Z = Y + XZ A. Single Replacement B. Synthesis C. Double Replacement D. Decomposition

For the gas phase decomposition of 1-bromopropane, CH3CH2CH2BrCH3CH=CH2 + HBr the rate constant at 622 K is 6.43*10-4 / s and the rate constant at 666 K is 8.28*10-3 / s. The activation energy for the gas phase decomposition of 1-bromopropane is

Write the electron configurations of cu2 + and ag+. is each electron configuration consistent with the color you observed for each cation? explain.