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vitfil [10]
4 years ago
14

Is the unlimited source of energy for all living things is the leaf. Is that true or false

Chemistry
1 answer:
Tasya [4]4 years ago
4 0
Uhh...
.
Do we eat leaves?
.
I mean, yeah, we do... basil leaves...
.
but really, what gives leaves energy?
.
huh?
.
I can't hear you.
.
Think again.
.
Say it aloud!!
.
LOUDER.
.
Yup. The sun.
.
The sun never ends. See, the sun provides energy for plants. animals eat plants. we eat plants and animals. 
.
No sun?
.
we dead
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A positively charged particle is placed next to an negatively charged object. In which direction does the positively charged par
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The positively charged particle will go towards the negatively charged particle because opposites attract.

Explanation:

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As energy moves out from the sun’s core toward its surface, it first travels by __________, then by __________, and then by ____
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Energy leaves the Sun's core and goes by radiation, convection, and radiation on its way to the surface.

Energy leaves the sun's core and initially travels towards the radiation zone. In the radiation zone, the gas is tightly compressed. Here, electromagnetic waves are absorbed and reradiated to transfer energy. Energy can take more than 100,000 years to get through this area because it is so dense.

Thus, energy radiates out initially from the core before being delivered by convection to the outer layers.

To know more about Radiation refer:

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2 years ago
A sample of N 2 gas has a volume of 30.0 ml at 25 degrees * C and 730 mmHg. What would be the volume of the gas at 50 ^ 0 * C an
Sveta_85 [38]

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your answer is D. 57.6

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730+30.0+25+2=

5 0
3 years ago
One positive attribute of dietary fat is that it's a good source of
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7 0
4 years ago
If 45.0 mL of ethanol (density = 0.789 g/mL) initially at 8.0 ∘C is mixed with 45.0 mL of water (density = 1.0 g/mL) initially a
strojnjashka [21]

Answer : The final temperature of the mixture is, 22.14^oC

Explanation :

First we have to calculate the mass of ethanol and water.

\text{Mass of ethanol}=\text{Density of ethanol}\times \text{Volume of ethanol}=0.789g/mL\times 45.0mL=35.5g

and,

\text{Mass of water}=\text{Density of water}\times \text{Volume of water}=1.0g/mL\times 45.0mL=45.0g

Now we have to calculate the final temperature of the mixture.

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of ethanol = 2.42J/g^oC

c_2 = specific heat of water = 4.18J/g^oC

m_1 = mass of ethanol = 35.5 g

m_2 = mass of water = 45.0 g

T_f = final temperature of mixture = ?

T_1 = initial temperature of ethanol = 8.0^oC

T_2 = initial temperature of water = 28.6^oC

Now put all the given values in the above formula, we get:

35.5g\times 2.42J/g^oC\times (T_f-8.0)^oC=-45.0g\times 4.18J/g^oC\times (T_f-28.6)^oC

T_f=22.14^oC

Therefore, the final temperature of the mixture is, 22.14^oC

3 0
4 years ago
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