Daniel D.

06/01/20

If 0.0067g of calcium carbonate is dissolved in 1.0L of water, calculate Ksp.

If 0.0067g of calcium carbonate is dissolved in 1.0L of water, calculate Ksp.CaCO3(s) ⇌ Ca^2+(aq)+CO3^2−(aq)a)1.34*10^-4b)4.5*10^-5c)none of thesed)6.7*10^-5

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Math

05/30/20

If 400 people will attend a carnival when the admission price is $3.00, and if for every $0.10 increase in price, 10 fewer people attend, what admission price would yield the greatest revenue?

I also have another questionsHow many people will attend at this price?*Also please dont use calculus*Please help, i cant get the answer! Thank you in advance

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Trigonometry

05/29/20

Verify this Trig Identiity

Problem: (1/sec(x)+1) - (1/sec(x)-1) = ( -2cot^2 (x) )

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Chemistry

05/29/20

Acrylonitrile is produced according to the following equation, 2 C3H6(g) + 2 NH3(g) + 3 O2(g) -> 2 C3H3(g) + 6 H2O(g). If 5.0L of ammonia reacts with appropriate volumes of the other reactants,... more

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Chemistry

05/29/20

Magnesium metal (0.100 mol) and a volume...

Magnesium metal (0.100 mol) and a volume of aqueous hydrochloric acid that contains 0.500 mol of HCL are combined and react to completion. How many litres of hydrogen gas, measured at STP are... more

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