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MrRissso [65]
3 years ago
6

Temperature and Thermal Er

Chemistry
2 answers:
gtnhenbr [62]3 years ago
7 0

Explanation:

50 degrees fahrenheit =

10 degrees celsius

saul85 [17]3 years ago
3 0

Answer

c

Explanation:

I took the quiz

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Which phase of matter has a fixed volume but variable shape?
jek_recluse [69]
The answer is "Liquid".

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8 0
3 years ago
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Which phrase describes properties of a solid?
Licemer1 [7]

Answer: fixed shape and volume

Explanation:

i took the quiz so its right

6 0
2 years ago
What is the percent by mass of oxygen in carbon dioxide (CO2)?
wariber [46]

Answer:

= 72.73%

Explanation:

The percentage by mass of an element is given by;

% element = total mass of element in compounds/molar mass of compound × 100

The mass of oxygen in carbon dioxide = 32 g

Molar mass of CO2 = 44 g

Therefore;

% of O2 = 32/44 × 100%

             <u>= 72.73%</u>

8 0
3 years ago
Calculate the density of an aluminum block with a volume of 100 cm3 and a mass of 270g.
m_a_m_a [10]

Answer:

<h2>2.7 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{270}{100}  =  \frac{27}{10} \\

We have the final answer as

<h3>2.7 g/cm³</h3>

Hope this helps you

6 0
2 years ago
How many grams of ethanol c2h5oh can be made by the fermentation of 1150 g of glucose?
ozzi
Answer is: 588.15 <span>grams of ethanol.
</span>Chemical reaction: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂.
m(C₆H₁₂O₆) = 1150 g.
n(C₆H₁₂O₆) = m(C₆H₁₂O₆) ÷ M(C₆H₁₂O₆).
n(C₆H₁₂O₆) = 1150 g ÷ 180.16 g/mol.
n(C₆H₁₂O₆) = 6.38 mol.
From chemical reaction: n(C₆H₁₂O₆) : n(C₂H₅OH) = 1 : 2.
n(C₂H₅OH) = 12.76 mol.
m(C₂H₅OH) = 12.76 mol · 46.07 g/mol.
m(C₂H₅OH) = 588.15 g.
5 0
3 years ago
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