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Karolina [17]
3 years ago
10

How many moles is 2.17 x 10^ 23 representative particles of bromine?

Chemistry
1 answer:
Oksana_A [137]3 years ago
3 0
It should be 2.7 mol if I"m correct
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A jogger runs at an average speed of 5.9 mi/h.
madreJ [45]

She will cover distance in  3 days and 16 hours .the time will be 3:15 am on the fourth day.

Convert 5.9 miles/hour to feet/hour there are 5,280 feet in a mile

total distance covered  = 47500

distance = rate x time

now,  time = 47500/5280

time =  88 hours

88 hours = 3 Days and 16 Hours.

now the time will be 3 :15 am on the fourth day.

The overall distance the object covers in a given amount of time is its average speed. A scalar value represents the average speed. It has no direction and is indicated by the magnitude.

The distance traveled divided by the time taken is the most popular formula for calculating average speed. The alternative formula is to add the initial and final speeds together, then divide by 2.

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brainly.com/question/13269893

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4 0
2 years ago
Electric lights will not come on unless their electrical circuit is a?
nordsb [41]

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closed circuit

Explanation:

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6 0
3 years ago
Molecules are different from atoms because they
tatyana61 [14]
D) Contain Chemical bonds.
5 0
3 years ago
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Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the
rusak2 [61]

Answer:

Option d: C₈H₉NO₂ = acetaminophen, analgesic

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First of all we divide each by the molar mass of the element

63.57 g / 12 gmol = 5.29 mol of C

6 g of H / 1 g/mol = 6 mol H

9.267 g of N / 14 g/mol =  0.662 mol of N

21.17 g of O / 16 g/mol = 1.32 mol of O

We divide each by the lowest value, in this case 0.662

5.29 / 0.662 = 8

6 / 0.662 = 9

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1.32 / 0.662 = 2

Molecular formula of the compound is C₈H₉NO₂

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Write the net ionic equation for the precipitation of calcium sulfide from aqueous solution
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Answer:

Answer is Ca2+(aq)+S2-(aq)=>CaS(s)

Explanation:

I hope it's helpful!

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