What's molar mass? For chemistry

Consider the reaction below. C2H4 (g) + H2 (g) to C2H6 (g) Which change would likely cause the greatest increase in the rate of the reaction?

Tom wanted to test his hypothesis that plants grow better at room temperature than in cold temperatures. He placed an ivy plant in the refrigerator, which had no light source. He also placed a spider plant in the window in his room.

A common form of abuse of amphetamines that can damage the body is

When 2.94 g of a metal combined with fluorine gas, 7.47 g of a metal fluoride formed. Given this information, calculate the mass %F in the metal fluoride that formed.

What part of the cell contains most of the cell genetic information in the eukaryotic cell

A first order reaction has a rate constant of 0.816 at 25 oC. Given that the activation energy is 22.7 kJ/mol, calculate the rate constant at 34 oC. (enter answer to 3 decimal places)

Part b select the ester that is formed when propanoic acid reacts with isopropyl alcohol in the presence of heat and an acid catalyst.

Do metals form anions or cations

Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? a. Nitrogen b. Oxygen c. Argon

You just found a metallic object in a creek bed. From the following tests and Figure 2, determine what it is. 96.5g will balance the object. Its mass is g. The object displaces 5 mL of water. Its volume is cm 3. The density of the object is g/cm 3.