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nadezda [96]
3 years ago
9

Which nonmetals have similar chemical properties? Check all that apply.

Chemistry
2 answers:
alisha [4.7K]3 years ago
7 0

Answer:

Sulfur

Selenium

Oxygen

Explanation:

You’re welcome:)

Oxana [17]3 years ago
7 0

Answer:

Oxygen⇔Sulfur

Explanation:

Although all of the elements listed are nonmetals, we would expect sulfur to have chemical properties most similar to those of oxygen, since sulfur and oxygen are in the same Group in the Periodic Table.

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An ideal reversible heat pump is taking heat from the outside air at -14.0°c and discharging it into the house at 20.0°c. what i
just olya [345]

the coefficient of performance of this heat pump is 8.61.

<h3>What is Heat pump ?</h3>

The air source heat pump converts heat from the ambient air into a low-temperature liquid refrigerant. The pump compresses the liquid to raise its temperature using power. To release the heat it had been holding, it then condenses back into a liquid. Your underfloor heating system or radiators get heat.

coefficient of performance -The usable heating or cooling delivered to work (energy) needed ratio, also known as the coefficient of performance, or COP, of a heat pump, refrigerator, or air conditioning system. Higher efficiency, less energy (power) usage, and thus reduced operational costs are all related to higher COPs.

temperature of cold reservoir = -14.0°C

Tc = [ 273+ (-14.0)]K = 259K

temperature of hot reservoir = 20°C

Th = [ 273+ (20)]K = 293K

therefor, formula for coefficient of performance

Cop = Th/Th-Tc

Cop = 293/34

Cop = 8.61

to learn more about heat pump go to - brainly.com/question/3150928

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4 0
2 years ago
Perform the following operation and express the answer in scientific notation. 7.0x10^3x1.1x10^7
dimulka [17.4K]

Answer:

The answer is: 7.7\times10^{10}

Explanation:

Scientific notation is of the kind: a.bc\times10^{x}

The given calculation:

7.0\times10^{3}\times1.1\times10^{7}=(7\times1.1)\times10^{(3+7)}

=7.7\times10^{10}

Therefore, the answer in scientific notation is: 7.7\times10^{10}

4 0
2 years ago
Antony was measuring the temperature of a solution when he accidentally dropped the thermometer on the floor. What should Antony
Inga [223]

Answer:

He should notify the teacher!

Explanation:

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3 years ago
. zinc + nitrogen → zinc nitride
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Answer:

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6 0
2 years ago
In the reaction between CH3CH2CH2CH2Cl and CH3ONa, the organic product is
Reptile [31]

The product of the reaction as it has been shown above is  butoxymethane.

<h3>What is a chemical reaction?</h3>

A chemical reaction is an interaction that takes place between two or more chemical substances to yield a product (s). We should note that the reactants are written at the left hand side of the reaction equation while the products are written at the right hand side of the reaction equation. This is how we show  reaction on paper.

Having said this, the reaction that have been shown in the question would occur by an SN2 synchronous mechanism to yield butoxy methane product.

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6 0
9 months ago
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