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lbvjy [14]
3 years ago
15

describe an example of how humans used selective breeding in plants,and explain how that has benefited us

Chemistry
1 answer:
Crank3 years ago
6 0
The plants give out oxygen so for us humans will live
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Xenon-60 In order, what is the number of protons, electrons, and neutrons.
GenaCL600 [577]

Answer:

I would say B?

54,54,6

Explanation:

6 0
2 years ago
Jenna built the electrical circuit seen here. What would happen to the electrical energy if Jenna removed one of the clips on th
otez555 [7]

Answer: Option (D) is the correct answer.

Explanation:

An electric circuit works well when all the connections are complete but if any of the connections in the circuit is loose or disconnected then it is possible that current will not flow from the circuit.

Therefore, when Jenna removed one of the clips on the battery then circuit becomes incomplete and as a result there will no flow of current.

Thus, we can conclude that the electrical energy would stop because the circuit is incomplete.

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2 years ago
What is the name for CH3-CH2-CH2-O-CH2-CH3?
BabaBlast [244]

Answer:

idk maybe chlorine 12

Explanation:

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2 years ago
The number of neutrons in Aluminum is​
777dan777 [17]

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7 0
2 years ago
Read 2 more answers
If 45.0 mL of ethanol (density =0.789g/mol) initially at 6.0°C mix with 45.0 mL of water (density =1.0 g/mol) initially at 28.0°
Likurg_2 [28]

The final temperature of the mixture : 21.1° C  

<h3>Further explanation  </h3>

The law of conservation of energy can be applied to heat changes, i.e. the heat received / absorbed is the same as the heat released  

Q in(gained) = Q out(lost)  

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Q ethanol=Q water

mass ethanol=

\tt mass=\rho\times V\\\\mass=0.789\times 45=35.505~g

mass water =

\tt mass=1~g/ml\times 45~ml=45~g

then the heat transfer :

\tt 35.505\times 2.42~J/g^oC\times (t-6)=45\times 4.18~J/g^oC\times (28-t)\\\\85.922t-515.533=5266.8-188.1t\\\\274.022t=5782.33\rightarrow t=21.1^oC

5 0
2 years ago
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