Chemistry, 15.04.2021 06:00, smarty5187

Question 2 1 How many moles of carbon monoxide will be produced from 2.41 moles of calcium phosphate?

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Chemistry, 21.06.2019 16:30, binkyv15

How does decreasing the gas volume affect the pressure of a gas?

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Chemistry, 22.06.2019 11:40, Wemaybewrong

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

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Chemistry, 22.06.2019 14:30, Cartucho1978

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

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Chemistry, 22.06.2019 16:30, Eddie997

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.