2.1 Ã - 1024 atoms of Arsenic is how many moles?

A low energy electromagnetic wave would also have?

15. A 22.4-L sample of which of the following substances, at STP, would contain 6.02 x 10^23 representative particles? * a. gold b. sodium chloride c. sulfur d. carbon dioxide 16.

Calculate the ph of a solution in which [oh-]=7.1*10-3m. express the ph of the solution to two decimal places.

You subjected the secondary alkyl halides to both SN2 and SN1 reaction conditions. By which mechanism did each alkyl halide react faster, SN2 or SN1

Matter changing from a solid to a gas is called: A evaporation B sublimation C deposition D Melting

A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3 (aq) + NaOH (aq) → NaNO3 (aq) + H2O (1) How many moles of HNO3 are in the sample?

What does diatonic means

A general term for an attractive force that holds two atoms together is known as an

Which law is known as the law of action-reaction

7. A 2.0 L container had 0.40 mol of He (g) and 0.60 mol of Ar (g) at 25°C. Which gas has a greater average kinetic energy? Which gas is traveling at a higher average speed? If Ar has an average speed of 431 m/s, what is the average speed of He?