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Mazyrski [523]
3 years ago
10

16 Which two gases can not be broken down by chemical means?(1) CO and He (3) Xe and He

Chemistry
1 answer:
lyudmila [28]3 years ago
4 0
The answer is (2) CO and NH3. The chemical reaction can only break down chemical bonds between atoms inside the molecule. The He and Xe is consists of one atom only, so they can not be broken down by chemical means.
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How to do balance chemical equiations
alex41 [277]
Hey, lovely! It's a pretty lengthy process but here is a pretty clear video on how to do it. Hope this helps ya!

https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/balancing-chemical-equat...

4 0
4 years ago
Which of the following elements is the most reactive?
Zepler [3.9K]
Sodium. It reacts with most of every other element.
6 0
3 years ago
Read 2 more answers
At one point in the Bike Trip described in the passage, you traveled 1 kilometer in 0.1 hours. What was your speed during that t
stealth61 [152]

Answer:

v = 10 km/h

Explanation:

Step 1: Given data

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  • Time elapsed in the Bike Trip (t): 0.1 h

Step 2: Calculate the speed in the Bike Trip

The speed (v) is equal to the distance traveled divided by the time elapsed. We will use the following mathematical expression.

v = d/t

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7 0
3 years ago
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4 0
3 years ago
To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph). To measure the rate of a reaction we use molar
arsen [322]

Answer:

Part A: 47.8 mi/h

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Explanation:

Part A

The average speed or velocity (V) is the variation of the space divided by the variation of the time:

V = (241 - 2)/(8 -3)

V = 47.8 mi/h

Part B

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0.072/1 = rHCl/2

rHCl = 2*0.072

rHCl = 0.144 M/s

7 0
3 years ago
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