Which has more mass, a mole of water (H2O) or a mole of glucose (C6H12O6) ? a. water b. glucose c. The masses are the same

How do humans recharge their brains

What is the percent composition of the u. s quarter, which has the mass of 5.670g and contains 5.198g Cu and 0.472g Ni

The PVT behavior of a certain gas is described by the equation of state: P (? - ?) = ? T, where? is a constant. If in addition c? is constant, show that: (a) ? is a function of T only. (b) ? = const.

What do two or more atoms form when they share electrons in a chemical bond

A child has been diagnosed with bacterial otitis externa and will be receiving eardrops. Which of these eardrops are appropriate for this infection? (Select all that apply.) a. Floxin Otic b. Cortic c. Debrox d. Acetasol HC e. Cipro HC Otic

In cars, ethylene glycol, C2H6O2, is used as a coolant and antifreeze. A mechanic fills a radiator with 12.5 kg of ethylene glycol and 1500 g of water. What is the molality of water in the solution? (need to convert grams to moles)

What is the molarity of the following solutions? a. 19.5 g NaHCO3 in 460.0 ml solution b. 26.0 g H2SO4 in 200.0 mL solution c. 15.0 g NaCl dissolved to make 420.0 mL solution

What is 0.000345 expressed in scientific notation?

A silver coin rubs vigorously against a wool cloth. becomes positively charged. Which statements are true? The silver coin lost electrons. The silver coin gained electrons. The wool cloth lost electrons. The wool cloth gained protons.

C2H4 + O2 → 2C + 2H2O Mg + H2O → MgO + H2 N2 + 2O2 → 2NO2 S + O2 → S + H2O Which of the following is a valid combustion reaction?