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Svetlanka [38]
3 years ago
11

A loaf bread has a mass of 500 g and volume of 12.0 cm3. what is the density of the bread

Chemistry
1 answer:
pychu [463]3 years ago
5 0
41.6g/cm3 would be the density of the bread
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The complete combustion of octane, C8H18, the main component of gasoline, proceeds as follows: 2C8H18 (l) 25 O2(g) --> 16 CO2
Svet_ta [14]
The ratio of mole number of the reactants and products is equal to the coefficients. So the answer is a. 18.75 mol. b. 35.1 g. c. 1.38 * 10^5 g.
7 0
3 years ago
Read 2 more answers
How many grams of P4O10 would be produced when 0.700 mole of phosphorus is burned?
AysviL [449]
We can solve the equation and show the solution below:

Oxygen atomic number is 16.
Phosphorus atomic number is 32.

We have the molecular weight:
Molecular weight = (31*4) + (16*10)
Molecular weight = 284 grams/mol

Solving for the grams:

0.4 mole (for P4) * (1 mol P4O10/1 mol P4) * (284 grams P4O10/1 mole P4O10)
Total grams = 113.6

The answer is 113.6 grams.
8 0
3 years ago
A hollow conductor is positively charged. A small uncharged metal ball is lowered by a silk thread (insulating material) through
laiz [17]

Answer: Option (E) is the correct answer.

Explanation:

Since, the conductor is hollow which means that it is opened on both the ends. Hence, when a small uncharged metal ball is passed through it with the help of a silk thread then due to the presence of this insulating thread the ball will not come directly in contact with the charged rod.

As a result, there will occur no formation of opposite charge on the metal ball. Therefore, the ball will remain uncharged in nature.

Thus, we can conclude that after the given ball is removed, it will have no appreciable charge.

4 0
3 years ago
A gas occupies 4.31 liters at a pressure of 0.755 atm. Determine the volume if the pressure is increased to 1.25 atm. (Boyle)
vlabodo [156]

Answer:

<h2>2.60 L</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{4.31 \times 0.755}{1.25}  =  \frac{3.25405}{1.25}  \\  = 2.60324

We have the final answer as

<h3>2.60 L</h3>

Hope this helps you

6 0
3 years ago
As water evaporates from a solution, minerals become more concentrated and begin to form a rock. what type of rock is it.
Nata [24]
B. chemical sedimentary is your answer.
6 0
3 years ago
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