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Anna35 [415]
3 years ago
15

Help plz

Chemistry
1 answer:
SIZIF [17.4K]3 years ago
6 0
Not sure about the first one.
Wind farms can be set up anywhere.
To provide electricity to homes.
Recycling aluminum cans.
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Which energy changes in the enthalpy of solution are endothermic, and which are exothermic?
snow_tiger [21]
When energy is needed in order for the reaction to happen, then that reaction is known as endotermic. When the reaction has as a result energy then it is exotermic. An example of an endotermic reaction would be photosynthesis, for an exotermic: combustion.
8 0
4 years ago
How should this combustion reaction be balanced?<br> C5H8+O2 + CO2 + H20
Genrish500 [490]

Answer:

They would equally balance because of the chemicles.

Explanation:

8 0
4 years ago
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What is the density of 10cm^3 volume of water that has a mass of 10g?
prisoha [69]

Answer:

The answer is

<h2>1.0 g/cm³</h2>

Explanation:

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

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

From the question

mass = 10 g

volume = 10 cm³

It's density is

density =  \frac{10}{10}  = 1 \\

We have the final answer as

<h3>1.0 g/cm³</h3>

Hope this helps you

3 0
4 years ago
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A boy lifts a 30N dragon 2 meters above the ground. How much work did the boy do on the dragon?
pychu [463]

Answer:

Work= Fs

Work 30x2

Work 60 J

Explanation:

A lot of work

3 0
3 years ago
The idea that an emotion-arousing stimulus is simultaneously routed to the cortex and to the sympathetic nervous system is centr
pshichka [43]
<h3><u>Answer;</u></h3>

Cannon-Bard theory

<h3><u>Explanation</u>;</h3>
  • <em><u>The idea that an emotion-arousing stimulus is simultaneously routed to the cortex and to the sympathetic nervous system is central to the Cannon-Band theory.</u></em>
  • Cannon-Bard theory states that we feel emotions and experience physiological reactions such as sweating, trembling, and muscle tension simultaneously.
  • The theory argues that we experience physiological arousal and emotion at the same time. The theory gives more attention to the role of thought or outward behavior as compared to James-Lange.
7 0
4 years ago
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