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oksano4ka [1.4K]
3 years ago
10

Why is the piece of coal layered?

Chemistry
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

Coal is layered because it is a type of sedimentary rock

Explanation:

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A container has the dimensions of 10cm x 80mm x 0.15m. The density of
vesna_86 [32]

Answer:

2.52kg

Explanation:

80mm = 8 cm

0.15m = 15 cm

volume of the container = 10m × 8cm × 15cm

= 1200 cubic centimetres

mass = density × volume

= 2.1 × 1200

= 2520g

2520/ 1000

= 2.52kilograms

8 0
3 years ago
PLEASE HELP
Likurg_2 [28]

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5 0
2 years ago
Which is the formula for diarsenic pentoxide?<br><br> Ar2O5<br> As5O2<br> As2O5<br> 2As5O
yaroslaw [1]
As205 

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5 0
3 years ago
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How does the structure of compounds determine the properties of the compounds?
aleksley [76]

Answer:

All of these properties are due to the chemical structure of the compound. The chemical structure includes the bonding angle, the type of bonds, the size of the molecule, and the interactions between molecules. Slight changes in the chemical structure can drastically affect the properties of the compound.

Explanation:

Hope it helps.

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7 0
3 years ago
The average American is looking at their phone for 6.25 hours a day. How many hours will the average American spend on their pho
julia-pushkina [17]

Answer:

177253.125hrs

Explanation:

Given parameters:

  Number of hours spend per day on phone  = 6.25hrs

 Unknown:

Average hours pend by an average American if they lived for 77.7yrs

Solution:

Let us find the number of hours an average American spends on their phone per year;

    there are 365days in a year

 Number of hours  = 365 x 6.25  = 2,281.25hrs

Now, if they lived for 77.7yrs;

  They will spend  = 77.7 x 2,281.25 = 177253.125hrs

8 0
2 years ago
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