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andriy [413]
2 years ago
9

Brainliest to the best answer.

Chemistry
2 answers:
givi [52]2 years ago
4 0

Answer:The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface.

Explanation:

wariber [46]2 years ago
3 0

Explanation:

When water at the ocean's surface is heated by the Sun it gains energy. With enough energy, the molecules of <em>liquid water change into water vapor and move into the air.</em> This process is called evaporation.

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How many electrons are transferred during the formation of one molecule of al2o3?
lukranit [14]
Answer:
            Six electrons are transferred in the formation of Al₂O₃.

Explanation:
                   Aluminium metal and Oxygen react to form Al₂O₃ as,

                                2 Al  +  3/2 O₂    →    Al₂O₃

Oxidation number of Al on left hand side is zero, while than on right hand side in Al₂O₃ is +3. Means it has lost 3 electrons per one atom and six electrons per two atoms. Also, the oxidation number of O at left hand side in O₂ is zero, while that in Al₂O₃ it is -2 per atom and -6 per 3 atoms. 

So, two Al atoms have lost 6 electrons and 3 O atoms have gained six electrons.
4 0
3 years ago
I WILL GIVE BRAINLIEST!
stira [4]

The correct answer is option a, that is, they produce ions when dissolved in water.  

The acids and bases refer to the chemical components, which reacts with water. The molecules of acids dissociate to give hydrogen ions to water, while the bases dissociate to provide hydroxide ions to the water, or that takes hydrogen ions from water and leave the hydroxide ions behind.  


7 0
3 years ago
Read 2 more answers
Which statement correctly describes the location and charge of the electrons in an atom?
maxonik [38]

Answer:

D

Explanation:

The electrons revolve around the nucleus and they contain negative charge

3 0
2 years ago
Examine the system of equations.<br> y = 4x +8,<br> y = 4x-1
storchak [24]
Hope this helps with the answer to your question

5 0
3 years ago
Which of the following results in a chemical change in matter?
kodGreya [7K]
You have a raw egg you put it in a hot pan boom cooked egg most chemical changes are nonreversibal <span />
7 0
3 years ago
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