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Gre4nikov [31]
3 years ago
11

Why do we fill balloons with helium gas instead of oxygen gas

Chemistry
1 answer:
miss Akunina [59]3 years ago
3 0

Answer: cause oxegeon is harmful then helium

Explanation:

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What was the average speed of the truck for this trip?
Goshia [24]

Answer:

31.67 mph

Explanation:

To calculate the average speed of the truck, we must first obtain the total distance travelled by the truck followed by the total time taken for the truck to cover the distance travelled.

The following data were obtained from the question include:

Total distance) = 30 + 45 + 50 + 65 = 190 miles

Total time = 1 + 2 +1 +2 = 6 hours

Average speed =.?

Average speed = Total distance / Total time

Average speed = 190 /6

Average speed = 31.67 mph

Therefore, the average speed of the truck is 31.67 mph

8 0
3 years ago
How many seconds are there in two 24 hour days?
Oduvanchick [21]

Answer:

86,400 seconds in a day.

Explanation:

There are 24 hrs in a day. So there are 2460 mins in a day. ( 1hr=60 mins) So there are 246060 seconds in a day. (1 min = 60 seconds) Therefore 86,400 seconds in a day.

5 0
3 years ago
Read 2 more answers
He reaction produces 1.6 g of gas in 30 seconds.Calculate the mean rate of the reaction in the first 30 seconds.Use the equation
devlian [24]

Answer:

Mean rate of reaction produced = 0.533 g/sec (approx.)

Explanation:

Given:

Reaction produced = 1.6 gram

Time taken = 30 sec

Find:

Mean rate of reaction produced

Computation:

Mean rate of reaction produced = Reaction produced / Time taken

Mean rate of reaction produced = 1.6 / 30

Mean rate of reaction produced = 0.533 g/sec (approx.)

5 0
2 years ago
Not including the noble gases, which area of the periodic table has the highest electronegativities?
Anna71 [15]
The answer is the upper right Fluorine is the most electronegative. 
8 0
3 years ago
Read 2 more answers
At STP, which element is brittle and not a conductor of electricity
Sever21 [200]
Your answer is the element of S I think.
5 0
3 years ago
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