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Oksana_A [137]
4 years ago
13

1. How would you explain that energy in animals' food was once energy

Chemistry
2 answers:
AleksAgata [21]4 years ago
8 0

Answer:

Explanation: That energy inanimals food, used for body repair,growth, motion .It maintain body warmth, once energy from the sun.

Tju [1.3M]4 years ago
4 0

Answer:

The energy released from food was once energy from the sun that was captured by plants in the chemical process that forms plant matter (from air and water). Food provides animals with the materials they need for body repair and growth and the energy they need to maintain body warmth and for motion.

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A 3.82L balloon filled with gas is warmed from 204.9K to 304.8 K.
likoan [24]

Given :

A 3.82L balloon filled with gas is warmed from 204.9K to 304.8 K.

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The volume of the gas after it is heated.

Solution :

Since, their is no information about pressure in the question statement let us assume that pressure is constant.

Now, we know by ideal gas equation at constant pressure :

\dfrac{V_1}{V_2} = \dfrac{T_1}{T_2}\\\\\dfrac{3.82}{V_2}= \dfrac{204.9}{304.8}\\\\V_2 = \dfrac{304.8}{204.9} \times 3.82\\\\V_2 = 5.68 \ L

Hence, this is the required solution.

3 0
3 years ago
Magnesium combines with oxygen to form magnesium oxide. If 10.57 g of
Phantasy [73]

The total mass is 10.57+6.96=17.53 g.

So, the percent by mass of magnesium is (10.57)/(17.53) * 100 = <u>60.3%</u>

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The percent by mass of oxygen is (6.96)/(17.53) * 100 = <u>39.7%</u>

7 0
2 years ago
Suppose you put 50 ml of water in the can instead of 100 ml and heated it to 40 degrees instead of 20 degrees. in what ways if a
Alex
<span>Answer: Once these values are put into the equation delta Q=mc delta T it will give you the same value for Q (change in energy) if the same fuel is used 50mL will mean it gets heated quicker making the experiment quicker 200mL would take longer to heat for the same change in temperature causing a longer experiment.</span>
8 0
3 years ago
During the formation of a chemical bond, _________ must be transferred or shared between atoms to satisfy the octet rule. A) pro
ehidna [41]

Answer:

I think it's A or D im not sure which one..

3 0
3 years ago
Which of the following correctly<br> identifies segment XY and why?
Alecsey [184]

Answer:

sh1t

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