05/25/21

How many liters of Chlorine are needed to produce 5.64 moles of aluminum chloride?
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05/25/21

If 0.073g of aluminum are used how many molecules of chlorine will be needed?
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05/25/21

How many grams of H2O are produced from 268.5 grams of C2H6 ?
Consider the equation      2 C2H6 +  7 O2 --->  4 CO2 +  6H2OHow many grams of H2O are produced from 268.5 grams of C2H6 ?
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05/25/21

Gravitational Attraction
Two spherical objects have masses of 8kg and 8500kg. Their centers are separated by a distance of 3400m. What is the gravitational attraction between them?
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05/25/21

please help me with gas laws in chemistry

Explain why a helium weather balloon expands as it rises in the air. Assume that the temperature remains constant.A. The atmospheric pressure outside the balloon increases, and the gas inside... more
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05/25/21

please help me with chemistry gas laws
Why do astronauts have to wear protective suits when they are on the surface of the moon? (Select all that apply.)A. The temperatures are too cold, or too hot, to sustain life for long; and there... more
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05/25/21

help with gas laws please

Give the common units for pressure.A. mmHg, atm, kPaB. mmH2O, atm, Pa    C.mmHg, atm, litersD. mmH2O atm, kPa
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05/25/21

Please hep with gas laws

Which is not a physical characteristic of gases?A. Gases are the most compressible of the states of matter.B. Gases assume the volume and shape of their containers.    C. Gases will mix evenly and... more
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05/25/21

A. Calculate the mass of the salt that can be produced from 10.0 g of magnesium chloride reacting with sulfuric acid. Include the percent yield of the salt if 11.5 g was actually produced.
A. Calculate the mass of the salt that can be produced from 10.0 g of magnesium chloridereacting with sulfuric acid. Include the percent yield of the salt if 11.5 g was actually produced.B.... more
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05/24/21

Calculate the amount of the salt produced by the reaction between 8.4 g magnesium hydroxide and 80 mL of 1.0 M sulfuric acid.

Also calculate amount of excess reactant remaining from the reaction
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05/24/21

Calculate the mass of the salt that can be produced from 10.0 g of magnesium chloride reacting with sulfuric acid. Include the percent yield of the salt if 11.5 g was actually produced.
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05/24/21

What is the greatest amount of water in grams that can be produced 215 grams of C7H16 and 87 grams O2? Which reactant is limiting? How many grams of the excess reactant will be left?
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05/24/21

Rewrite the equation as the product of four terms

Rewrite the equation v=e(3w-6x+2y+5z)^2 as the product of four terms
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05/24/21

Write the function value in terms of the cofunction of a complementary angle.
Sec 28^**=degree Sec 28*=
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05/24/21

Can I fit a mattress into a tent?
This is a real world problem I am trying to figure out! I am camping out with a tent and inflatable mattress. But the mattress needs to be inflated outside of the tent (since the air pump has to... more
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05/24/21

What is a container that would hold 0.0893 moles of a gas at STP.
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05/24/21

The mass of sodium chloride that would be produced when 2.3 g of sodium reacts with 0.56 L of chlorine gas at 290K and 1.2 atm. Assume 100% yield.
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05/24/21

Calculate the specific heat when 15 grams of this material releases 375 J of heat when the temperature changes from 42.3 °C to 14.5 °C. Use specific heat to identify this material.
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05/24/21

PLEASE HELP ME ASAP
For the following reaction, 44.3 grams of iron are allowed to react with 24.1 grams of oxygen gas .iron(s) + oxygen(g)  iron(III) oxide(s)What is the maximum mass of iron(III) oxide that can be... more
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05/24/21

Solve stoichiometry problem
A 50.0g sample of calcium carbonate is reacted with 35.0g phosphoric acid to produce calcium phosphate and carbonic acid (H2CO3(aq)). Determine: The number of grams of calcium phosphate that could... more
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05/24/21

How many ml of 1.257M HCl are needed to completely react with 32.75g of Mg metal?

How many ml of 1.257M HCl are needed to completely react with 32.75g of Mg metal?
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05/23/21

How many moles of nitrogen gas would be produced if 7.63 moles of copper ( ) oxide were reacted with excess ammonia in the following chemical reaction ? 2 NH 3 (g)+3 CuO(s) 3Cu(s)+N 2 (g)+3H 2 O(g)
How many moles of nitrogen gas would be produced if 7.63 moles of copper ( ) oxide were reacted with excess ammonia in the following chemical reaction ? 2 NH 3 (g)+3 CuO(s) 3Cu(s)+N 2 (g)+3H 2 O(g)
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05/23/21

How many grams of Magnesium Hydroxide are needed to prepare 350 mL of a 0.600M solution?
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05/23/21

How many litres of 1.650 M HCl are needed to provide 3.2 moles of HCl?
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05/22/21

Compute the root-mean-square speed
Compute the root-mean-square speed of Ar molecules in a sample of argon gas at a temperature of 112°C.
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