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Allison drove home at 66 mph, but her brother Austin, who left at the same time, could drive at only 48 mph. When Allison arrived, Austin still had 54 miles to go. How far did Allison drive?

nicole was 1/2 as old as she will be in 8 years . how old is nicole

a 50.0 ml sample of water is heated to its boiling point. how much heat (in KJ) is required to vaporize it? (assume a density of 1.00g/ml).

how much heat (in KJ) is evolved in coverting 1.00 mol of steam at 135.0 degrees celcius to ice at -45.0 degrees celcius? the heat capacity of steam is 12.0 J/g * C and ice is 2.09 J/c * C.

which of the following factors affect the vapor pressure of a liquid? amount of liquid atmospheric pressure addition of solute temperature type of liquid surface area of the liquid

Use Henry's law to determine the molar solubility of helium at a pressure of 1.5 atm and 25 degrees celsius . this is what I know... Sgas = kH x Pgas so then I plugged in... Sgas = 3.7 x 10-4 x 1.5 my answer was .055 and it is wrong. could someone please...

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 114 kj of heat?

A ball thrown horizontally at 17.0 m/s from the roof of a building lands 36.3 m from the base of the building. How tall is the building? could someone PLEASE tell me how to go about solving this problem!

what is the compound verb & subject of the sentence "local governments and citizen groups often employ city planners." I don't understand compound verbs

I am having trouble understanding compound verbs and subjects can someone help for example what is the compound subject and verb of "Cats have long been valued for their skills as a hunters."

are you an online tutor

The yearly cost in dollars, y, at a video game arcade based on total game tokens purchased, x, is y = x + 60 for a member and y = x for a nonmember. Explain how the graph of a nonmember’s yearly cost will differ from the graph of a member’s yearly cost.

tariffs, quotes and VERs? Advantage or disadvantage?

for an arrhenius acid, the only positive ion can be H+, or OH-. Therefore, hydronium is the answer because it should be the only one that is positive, plus all the other answers can't be positive.

1.2×10–4 m