At which temperature would atoms of a He (g) sample have the greatest average kinetic energy?

(1) 25°C (3) 273 K

(2) 37°C (4) 298 K

What is the correct scientific notation for 0.000056? 5.6 x 10-5 5.6 x 105 6.5 x 10-5 56 x 10-6

Describe how you would draw the electron dot structure for bromine and then draw the structure.

Radium-221 has a half-life of 30 sec. How long will it take for 96% of a sample to decay?

What is the rate constant for the reaction 2a+b→c? (the initial rate was measured at several different reactant concentrations) [a] (m) [b] (m) initial rate (m/s) 0.05 0.05 0.035 0.10 0.05 0.14 0.20 0.10 1.12?

A 40.0 milligram sample of 33p decays to 10.0 milligrams in 50.0 days. What is the half life of 33p?

What is the molarity of a solution that contains 28g of KOH in 2L of solution?

For any enzyme, what would the initial velocity be, as a percent (%) of Vmax, if the [S] was equal to Km/10?

It was determined through analysis that a compound, sodium carbonate with a molar mass of 263 g/mol contained 68.4% water. determine the toilet number of water molecules in this hydrate

The combustion of a hydrocarbon X (30 cm3) with 350 cm3 of oxygen at STP resulted in the formation of 440 cm3 of gaseous products.

Which of these is an acid A (Vinegar