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alekssr [168]
3 years ago
6

A generator makes electricity from_____.

Chemistry
1 answer:
DiKsa [7]3 years ago
5 0

Kinetic energy.

Based on Fleming left hand principle, the coil in a generator produces a magnetic field whereby and alternator converts it to electricity.

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State one factor that effects the rate of change of the liquid colour​
Debora [2.8K]

Answer:

Temperature is one of the major factors that affects the rate of change of the liquid colour, this is because ; like when if you freeze hot water the ice formed will be clear transparent, while on the other hand, if we freeze cold water it would be foggy inside the ice. This change occurs because of the temperature difference of the cold and hot water.

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3 years ago
A gas occupies 25,3 mL at a pressure of 152 kPa. Find the volume if the pressure is
sleet_krkn [62]

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This is under gas laws. check it out

3 0
2 years ago
Part 1. Find AHra for these chemical reactions. Tell if each is endothermic or exothermic.
strojnjashka [21]

Answer:

1 is ur answer

Explanation:

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6 0
3 years ago
Jamal is working with three ionic compounds: sodium chloride, calcium sulfide, and barium oxide. His teacher asks him which are
Lubov Fominskaja [6]

Answer:

option A is correct  ( sodium, calcium and barium)

Explanation:

Given compounds:

Sodium chloride , calcium sulfide, barium oxide

We know that metals form positive ions. In order to solve the problem we must identify the metals from given compounds.

Na⁺Cl⁻

Ca²⁺S²⁻

Ba²⁺O²⁻

We can see that sodium, calcium and barium contain positive charges.

Thus option A is correct.

Because sodium have one valance electron. When it combine with chlorine sodium lose its one electron to complete the octet and chlorine accept it to complete its octet. Thus sodium form positive ion and chlorine form negative ion.

Similarly barium and calcium are present in group 2. Both have two valance electron. When they lose them cation are formed.

Other option are incorrect because,

Option B have sulfur and oxygen which are anion.

Option C have chlorine which is also anion

Option D have chlorine, sulfur and oxygen that are anions.

4 0
3 years ago
In which case would recalibrating a thermometer be an important next step in an experiment dealing with boiling points?
Sonbull [250]

I believe the answer would be D

7 0
2 years ago
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