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ASHA 777 [7]
3 years ago
10

Ms. Crawford gave the following instructions to her science class:

Chemistry
2 answers:
vekshin13 years ago
8 0
A — a change in state is a good indicator of a chemical change
algol [13]3 years ago
6 0
A- the gas produced caused the balloon to blow up
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What is the term for a substance capable of dissolving another substance?
AURORKA [14]

Answer:

The answer to your question is: solvent

Explanation:

Solvent is a component in a solution that is present in the highest amount and is able to dissolve the other or others components.

3 0
3 years ago
NEED HELP ASAP LAST QUESTION CANT GET WRONG !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
yaroslaw [1]

A local community needs to provide more electricity for its growing population. Currently, the community's electricity needs are met by coal-burning power plants several kilometres away. Citizens are concerned that burning more coal will produce too much air pollution.

Which of the following could be used as an alternative energy resource to help minimise air pollution in this community?

A.  hydroelectric energy

B.  solar energy

C.  wind energy

<u>D.   all of these </u>

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8 0
3 years ago
Complete the following reaction.<br> 14N+ on →?C+1H<br> 18C<br> 14<br> 1 C<br> 18C
CaHeK987 [17]

Answer: The complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

Explanation:

When nucleus of two or more atoms are bombarded together then it leads to the formation of new particles with new identity. This type of reaction are called nuclear reaction.

For example, ^{14}_{7}N + ^{1}_{0}n \rightarrow ?C + ^{1}_{1}H

Here, nitrogen atom when bombarded with a neutron then it is forming hydrogen and a carbon atom.

As total atomic mass on reactant side is (14 + 1) = 15

So, the atomic mass of carbon formed on product side is (15 - 1) = 14.

The number of protons holded by this carbon atom is (7 - 1) = 6.

Therefore, we can conclude that the complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

6 0
3 years ago
Can energy transfer even if the objects are in the same temprature
Elina [12.6K]

Answer:

Yes

Explanation:

7 0
2 years ago
I don't know whether to tell if my crush (the one in my school) likes me and i have a crush on jaden hossler and i've been havin
Anna11 [10]

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no way you both r meant to be

Explanation:

7 0
3 years ago
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