Answer:
The reaction that occurs is a redox reaction. The Copper metal (Cu 0)on the copper pennies is oxidized in concentrated nitric acid to produce Cu2+ ions. Copper is easily oxidized to Cu2+, which is blue in aqueous solutions (water) so you should see the solution turn blue as the copper penny reacts.
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Answer: Carbohydrates (carbo- = “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.
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CAN U GIVE ME BRAINLIEST
Answer:
160
Explanation:
p*v/t = constant
or
p1*v1/t1 = p2*v2/t2
pressure is not stated in question so we get rid of it on both sides
v1/t1 = v2/t2
we are finding temperature so we flip the entire equation
t1/v1 = t2/v2
200/5 = t2/4
4(200/5) = t2
=160
Mass is an intensive physical property because it is dependent on the size of the sample.
