Write the following numbers in standard notation, maintaining the same number of significant figures.

6.104 x10^2

9.5 x 10^-3

Move the decimal by a certain number of spaces, according to the exponent of 10

Calculate the volume of a gas with a pressure of 100 kPa, if its volume at 120 kPa is 1.50 L.

During photosynthesis enery is transformed into energy

In a chemical equation, what do the coefficients indicate?

The reaction described by H2 (g) + I2 (g) ⟶2HI (g) has an experimentally determined rate law of rate=k[H2][I2] Some proposed mechanisms for this reaction are: Mechanism A (1) H2 (g) + I2 (g) - →k12HI (g) (one-step reaction) Mechanism B (1) I2 (g) ⥫⥬=

Which of the following pairs of molecules can form Hydrogen bonds between them? A) HCl and HI B) CH3OH and NH3 C) CH4 and H2O D) SO2 and CH2O E) H2 and O2

You are given a liquid. Briefly describe the steps you would take to show whether it is a pure substance or a homogeneous mixture.

What are the 4 variables that influence gas behavior

A 15.0 L tank of gas is contained at a high pressure of 8.20 x 10^4 torr. The tank is opened and the gas expands into an empty chamber with a volume of 6.00 x 10^4 L. Calculate the new pressure of the gas.

What amount of sucrose (C12H22O11) should be added to 5.83 mol water to lower the vapor pressure of water at 50 °C to 72.0 torr? The vapor pressure of pure water at 50 °C is 92.6 torr. 1

What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p65s2 4d10 5p4?