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professor190 [17]
2 years ago
5

5. Which describes why the sun is a renewable resource?

Chemistry
1 answer:
nordsb [41]2 years ago
3 0
C. the sun is continuously releasing energy.
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How many moles of hno3 are present if 0.108 mol of ba(oh)2 was needed to neutralize the acid solution? express your answer with
belka [17]
The balanced equation for the neutralisation reaction is as follows
2HNO₃ + Ba(OH)₂ ---> Ba(NO₃)₂ + 2H₂O
stoichiometry of HNO₃ to Ba(OH)₂ is 2:1
number of Ba(OH)₂ mol present - 0.108 mol
1 mol of Ba(OH)₂ neutralises 2 mol of Ba(OH)₂
therefore 0.108 mol of Ba(OH)₂ neutralises - 2 x 0.108 mol = 0.216 mol of HNO₃
6 0
3 years ago
What is chemistry? I NEED HELP ASAP!
Thepotemich [5.8K]

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

3 0
3 years ago
What is endothermic process?​
LiRa [457]

Answer:

An endothermic process is any process with an increase in the enthalpy H (or internal energy U) of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system. It may be a chemical process, such as dissolving ammonium nitrate in water, or a physical process, such as the melting of ice cubes.

7 0
3 years ago
Which atom is most likely to attract electrons in a bond?<br><br> A) K<br> B) Na<br> C) S<br> D) Se
jeka57 [31]
C) S

Because of the trends of electronegativity. Increases across a period and decreases down a group.
4 0
3 years ago
Which phrase best describes an individual organ?
HACTEHA [7]

Answer:

made of different kinds of tissues

Explanation:

cause that's the only one that makes sense because it goes: cell, tissues,organ,organ system , organism

1. the simplest unit of life - cell

2. a individual organ - would be made of different kinds of tissues

3. tissues - would be made of one kind of cell

4- an organ system - meets all the needs of a organism

also it wouldn't make sense for a individual organ to be made of only one kind of cell so yeah

good luck :) I hope this was right

6 0
3 years ago
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