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3 years ago

Which description below represents a hydrocarbon?

Chemistry

1 answer:

pantera1 [17]3 years ago

8 0

The answer is A, an organic compound that contains only carbon and hydrogen atoms

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2 CuCl2 + 4 KI → 2 CuI + 4 KCl + I2

Margaret [11]

Answer: 6.75 moles

Explanation:

This is a simple stoichiometry proboe. that I would set up like this:

(13.5 moles CuCI2) (1 mol I2 / 2 moles CuCi2)

That means you all you have to do for this problem is divide by 2 and cancel out the unit moles CuCI2, which leaves you with 6.75 moles I2.

Hope this helps :)

7 0

3 years ago

2. An electric heating element is connected to a 110 V circuit and a current of 3.2 A is flowing though the element. How much en

ehidna [41]

I think its D 1,760Wh

3 0

3 years ago

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Explain the difference between mechanical weathering and chemical weathering

Alchen [17]

Answer:

mechanical weathering breaks rocks into smaller forms without any change in their composition whereas chemical weathering breaks down rocks by forming new minerals .

or simply mechanical weathering is the physical breakdown of rocks while chemical weathering is the breakdown of rocks through chemical reactions .

5 0

3 years ago

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What is the osmotic pressure of a solution made by dissolving 55.0 g of glucose, C6H12O6, in enough water to form 800.0 mL of so

Stels [109]

Answer:

The osmotic pressure is 8.85 atm

Explanation:

Step : Data given

Mass of glucose = 55.0 grams

Volume of water =800.0 mL

Temperature = 10.0 °C

Step 2: Calculate moles glucose

Moles glucose = mass glucose / molar mass glucose

Moles glucose = 55.0 grams / 180.156 g/mol

Moles glucose = 0.305 moles

Step 3: Calculate osmotic pressure

π = iMRT

⇒ with π = the osmotic pressure = TO BE DETERMINED

⇒ with i = the van't Hoff factor for glucose = 1

⇒ with M = the concentration = moles / volume = 0.305 moles / 0.800 L =0.381 M

⇒ with R = the gas constant = 0.08206 L*atm*mol¨K

⇒ with T = the temperature = 10.0 °C = 283 K

π = 1* 0.381 *0.08206 * 283

π = 8.85 atm

The osmotic pressure is 8.85 atm

3 0

3 years ago

This is the substance(s) formed in a chemical reaction.

Evgesh-ka [11]

Answer:A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

Explanation:

7 0

3 years ago

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