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ASHA 777 [7]
4 years ago
14

A supply of copper pipes is stored outdoors. Over the course of many years, the copper reacts with oxygen and turns green. What

clue indicates a chemical reaction took place?
Chemistry
1 answer:
Norma-Jean [14]4 years ago
7 0

Answer: the oxidation of the copper (it turning green)

Explanation:

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C + O2 → CO2 ,
DerKrebs [107]
First, if you want to get the amount of production from the equation, you need to use the units of mol. So, we need to know the molar mass of C which is 15.75/12=1.31 mol. Then we need to use the less part(O2) to get the production amount which is 0.116 mol. Then we can get the answer in units of g: 0.116*(12+16*2)=5.104 g.
5 0
4 years ago
Diseases are classified into _______ and _____ based on their duration.
adelina 88 [10]

Answer:

communicable and non-communicable?

7 0
4 years ago
The less dense areas in a sound wave are called _____.
Vitek1552 [10]
The less dense areas in a sound wave is called a rarefaction or rarefactions if there are multiple.
3 0
3 years ago
Read 2 more answers
How do you correctly put the number 0.00000000008759 in scientific notation with 3 sig figs?
vesna_86 [32]

Answer:

8.759×10-11

Explanation:

it may be to sure try to convert the answer

5 0
3 years ago
State the type of enthalpy in the followinv equation Koh+Hcl-kcl+h2o ∆h+=-57kj\mol​
grandymaker [24]

Answer:

The Enthalpy of neutralization

Explanation:

The reaction of a base (KOH) with an acid (HCl) produce water and its salt (KCl) is called <em>Neutralization Reaction.</em>

This neutralization releases 57kJ/mol.

As the type of enthalpy is due the type of reaction. This enthalpy is:

<h3>The Enthalpy of neutralization</h3>
4 0
3 years ago
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