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3 years ago

I need a device that minimizes heat transfer and how it minimizes heat transfer.

Chemistry

2 answers:

seraphim [82]3 years ago

6 0

Um, Im a friend of devonway9 he and he said create a peer answer account

Evgesh-ka [11]3 years ago

5 0

Answer:

Air Conditioner!

Explanation:

Puts out cool air, removing the hot air!!

(Hope this made somone laugh)

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True or false the strength and concentration of an acid or base describe the same property.

WITCHER [35]

I’m pretty sure that it’s true.

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4 years ago

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How many grams of calcium hydride are needed to form 4.550 g of hydrogen gas

stealth61 [152]

Molar mass

CaH₂ = 42.0 g/mol

H₂ = 2.0 g/mol

Balanced chemical equation :

CaH2 + 2 H₂O = Ca(OH)₂ + 2 H₂

42.0 g CaH₂ --------------------- 4.0 g H2
? g CaH₂ ---------------------- 4.550 g H2

mass = 4.550 * 42.0 / 4

mass = 191,1 / 4

mass = 47.775 g of CaH₂

hope this helps!

4 0

3 years ago

Match the followings.

insens350 [35]

Answer:

Explanation:

Here, we are to copy and complete the paragraph with the correct options as given below in the question.

Before that, let us have an understanding of what a conversion factor is all about.

A conversion factor refers to a formula that is being used to change over an estimation in a given arrangement of units to its comparable estimation in another arrangement of units. Subsequently, the formula comprises both a number and its unit.

So;

$\text{You can check that you have written the correct conversion factors for an }$

$\text{equality by looking at the numbers and units in each; the information on }$

$\text{one side of the equity appears in the of a conversion factor while the }$

$\text{information on the other side of the equity appears in the denominator.}$

$\text{To generate a second conversion factor, we "turn over" the first }$

$\text{conversion factor so the numbers and units in the numerator and }$

$\text{denominator switch places.}$

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3 years ago

Destiny equals mass divided by ____. Power Distance Weight Volume

Brut [27]

The answer is volume.

3 0

3 years ago

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When might neutralization reactions be used in a laboratory setting?

Ipatiy [6.2K]

Neutralization reactions can be used in a laboratory setting in order to dispose of chemicals. When spills happens, for instance an acid is on the floor, you can use a base to neutralize the spill. Hope this answers the question. Have a nice day.

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3 years ago