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kiruha [24]
3 years ago
7

Need help with these.

Chemistry
1 answer:
kakasveta [241]3 years ago
5 0
I got you bro by the power of my heart and the felling of agony my condolences go to the Siskin of Thebes
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What change in volume results if 170.0 mL of gas is cooled from 30.0 °C to 20.0 °C? (CHARLES LAW)
Inessa05 [86]

Answer:

164.4 L

Explanation:

use charles' law formula Volume 1 over Temp. 1 equaled to Volume 2 over Temp. 2

5 0
3 years ago
During the reaction P4 + 5O 2 P4 O10, 1.5 moles of product was made in 30 seconds. What is the rate of reaction?
Brut [27]

Answer:

850g/min

Explanation:

The reaction expression is given as:

      P₄  +  5O₂   →   P₄O₁₀

Given that:

Number of moles of product  = 1.5moles

Time  = 30s = 0.5min

Unknown:

The rate of the reaction  = ?

Solution:

Convert the moles given to mass of the product.

     So;

     Mass of product  = number of moles x molar mass

Molar mass of P₄O₁₀   = 4(31) + 10(16)  = 284g/mol

    Mass of product  = 1.5moles x 284g/mol  = 426g

So;

 Reaction rate  = \frac{mass of product}{time}   = \frac{426}{0.5}   = 850g/min

8 0
3 years ago
Name something made of aluminum and explain why malleability is a useful property
avanturin [10]
  <span>Soft drink and beer cans. If aluminum were not malleable, these couldn't be made</span>
3 0
4 years ago
Read 2 more answers
I need help on this right now it is due it 12mins please help!!!
Maurinko [17]

Where is the work (I'll edit the answer)

6 0
3 years ago
Which statement describes a reason to consider air a mixture? A) The major constituents of air are gaseous elements. B) The comp
umka21 [38]

The correct answer is - A) The major constituents of air are gaseous elements.

With the statement ''the major constituents of air are gaseous elements'' we can easily conclude that the air is a mixture. The reason for that is that we have a plural usage of the word element, elements, which mean that there are multiple elements that make up the air.

The air is indeed predominantly a mixture of gaseous elements. The most abundant gas in the air being the nitrogen with 78.9%, oxygen with 20.95%, argon 0.93%, and carbon dioxide 0.04%, with lesser amounts of other gases also be present in it. The water vapor is also present in the air, though it is variable, being around 1% at sea level, but only 0.4% over the entire atmosphere.

3 0
4 years ago
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