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Viefleur [7K]
2 years ago
7

I just need to know the answer for six please and thank you!

Chemistry
1 answer:
nydimaria [60]2 years ago
8 0

Answer:

Explanation:

3(NH₄)₂Cr₂O₇

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A crow flies 100 meters east in 5 minutes. What is the crow’s velocity?​
torisob [31]

<em>Answer:</em>  20 m/min east

<em>Explanation:</em>  The speed is distance divided by time

distance between start-point and end-point = 100 meters

<em>time to cover the distan</em>ce  =  5 minutes

100 m ÷ 5 min = 20 m/min east

y<u>ou have to add east since velocity is the measure of speed and direction and your answer needs to include the direction</u>

3 0
2 years ago
1. The forks shown are made of silver (Ag). Some of the silver forks
Anon25 [30]

Answer:

Corrosion

Explanation:

Silver, although known as a nobble metal, is also subject to corrosion process such as having silver tarnish when exposed to sulfur and air.

Tarnishing occurs on the surfaces of some metals such as brass, copper, and silver, which results in a corroded layer. Silver tarnish occurs from the chemical reaction that takes place when silver is exposed to sulfur which results in the formation of black Ag₂S

In order to restore the original silver surface, the silver tarnish (silver sulfide) layer is removed.

We have the statement presented here as follows;

The forks shown are made of silver (Ag). Some of the silver forks shown have lost their luster - they have become tarnished. This is an example of <u>Corrosion.</u>

4 0
2 years ago
1. Name the compound present in a sample of dry air.
aev [14]

Answer:

not air

Explanation:

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Quizletwhat does the mucosa of the small intestine release in response to the acidic chyme?
Ivenika [448]
Reducing acidity of chyme :Acidic chyme entering the duodenum stimulates the release of secretin from the small intestinal glands.
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Which change does an increase in heat energy cause?
Bumek [7]

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C more collision between molecules

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increase in heat causes increase in kinetic energy of the particles

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