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Chemistry

Describe the conversion between potential and kinetic energy that occur when you shoot a basketball at a basket.

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Chemistry

Thirty grams of lead oxide and fifteen grams of ammonia react completely to produce solid lead, nitrogen gas, and liquid water. What will be approximate mass of all three products? 10 g 15 g 45 g 450 g

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Chemistry

Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (l) → Ca (OH) 2 (aq) + 2H2 (g) How many grams of CaH2 are needed to generate 45.0 L of H2 gas at a pressure of 0.995 atm and a temperature of 32 °C?

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Chemistry

What is heat measured in

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Carolina Brewer

Chemistry

What kind of car do Cherry's and Marcia's boyfriends ride around in

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Chemistry

What is the use of formaldehyde

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Chemistry

If you react 5.6 moles of pbs (s) in the air, how much o2 (in grams) would be needed for a complete reaction?

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Chemistry

A solution containing 292 g of Mg (NO3) 2 per liter has a density off 1.108 g/ml. What is the molarity of the solution?

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Chemistry

Ozone, o3 (g), is a form of elemental oxygen produced during electrical discharge. is δh∘f for o3 (g) necessarily zero?

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Chemistry

Calculate the molecular mass of carbon dioxide (CO2) :

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Chemistry

You and your lab partner are asked to determine the density of an aluminum bar. The mass is known accurately to 4 significant figures. You use a simple metric ruler to determine its size and calculate the results in column A. Your partner (using a precision micrometer for the first time) obtains the results in column B. (The accepted density of aluminum is 2.702 g/cm3.)

Method A results (g/cm3) Method B results (g/cm3)

2.2 2.603

2.3 2.601

2.7 2.605

2.4 2.611

Calculate the average density for each method.

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Chemistry

What is more inflammable? gasoline or ethanol?

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Chemistry

Two chemical tests of water

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Chemistry

A new medication dissolves blood clots. however, if too much is used excessive bleeding occurs. which methob should you use

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Cheyanne Salazar

Chemistry

Which element could likely substitute for Si in a solid solution

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