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Andrej [43]
3 years ago
8

Why is it easy for archaeologists to find campsites of early explorer of over 200 years ago?

Chemistry
1 answer:
Ivenika [448]3 years ago
5 0
Here's a website with the answer and some cool reading:
http://history-world.org/archeology.htm
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What is the relationship between the amount of carbon dioxide and the earths average temperature?
Anit [1.1K]

Answer:

carbon dioxide concentration goes down, temperature goes down. Carbon dioxide goes up temp goes up, carbon dioxide is directly related to temperature by insulating it in the earths atmosphere and if there's less of it then the temp would go down.

Explanation:

6 0
2 years ago
Esters are generally pleasant smelling compounds<br>True<br>False​
Rzqust [24]

Answer:

True

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Esters are generally pleasantly smelling compounds. In fact, the fragrance industry uses esters to produce perfume, as well as uses esters as an ingredient to produce synthetic flavours and cosmetics, all of which have unique and pleasant smells.

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3 years ago
Mercury is a liquid meteal but it is not hard? how can we say it is a metal
NNADVOKAT [17]
What's the problem ? Hardness is not the definition of a metal. You need to expand your thinking. EVERY element is solid, liquid, and gas, over different ranges of temperature ... including all of the metals. There are only TWO elements that are liquid AT ROOM TEMPERATURE, and mercury is one of them. But on a mild day at the south pole, mercury is solid too.
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3 years ago
Calculate the percent by mass of carbon in CO2 (carbon dioxide). Please show all work.
anygoal [31]
%C= 12/12 + 2·16=0,273=27,3%.
6 0
3 years ago
Ca3(PO4)2 + 3H2SO4  3CaSO4 + 2H3PO4.
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If anything isn’t obvious, don’t hesitate to ask me
Check the attached photo out...

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