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vodomira [7]
2 years ago
10

Help ASAP I will mark brainliest for the correct answer !!!⚡️⚡️⚡️

Chemistry
2 answers:
kobusy [5.1K]2 years ago
8 0
Which fractions are equivalent to 0.875?
Tcecarenko [31]2 years ago
5 0

Answer:

A) 0.5h

Explanation:

Using the formula,

speed=\frac{distance}{time}

Substituting given values

1224=612/time

time=0.5h

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Help <br> whoever answers all gets marked brainliest
Lelechka [254]

#1

  • See H and C have shared their electrons so it's Covalent bonding

#2

Yes here we can see the dots and crosses clearly.

  • Dot and crosses digram

#3

It's Methane or CH_4

  • 4 single bonds

#4

There is no double bond

6 0
2 years ago
Read 2 more answers
Gas hydrates are compact chemical structures made of natural gas and
Oksana_A [137]

Answer:


                  Option-B (water) is the correct answer.


Explanation:

                 Gas hydrates are made up of Solid-Ice water and a natural gas like Methane gas trapped in the lattice of ice water. Gas hydrates are mainly found deep down in the sea where the atmospheric pressure is greater than 1 atm.


Generally Gas hydrates have two main applications. 

                             a) It stabilizes the sea floor other wise its melting will cause land sliding in sea floor. 

                             b) Secondly, it traps a green house gases like Methane, if released these gases could produce Climate changes.

6 0
2 years ago
Read 2 more answers
Which list is organized from SMALLEST to LARGEST?
PilotLPTM [1.2K]
<span>D). Planet, Solar System, Galaxy, Universe</span>
3 0
2 years ago
Read 2 more answers
The Henry's Law constant (kH) for carbon monoxide in water at 25°C is 9.71×10-4 mol/L·atm. How many grams of CO will dissolve in
Olegator [25]

Answer: 0.0748 grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

C_{CO}=K_H\times p_{liquid}

where,

K_H = Henry's constant = 9.71\times 10^{-4}mol/L.atm

p_{CO} = partial pressure of CO = 2.75 atm

Putting values in above equation, we get:

C_{CO}=9.71\times 10^{-4}mol/L.atm\times 2.75atm\\\\C_{CO}=2.67\times 10^{-3}mol/L

C_{CO}=2.67\times 10^{-3}mol/L\times 28g/mol=0.0748g/L

Hence, the solubility of carbon monoxide gas is 0.0748 g/L

5 0
3 years ago
Why do trees produce carbon dioxide (CO2) at night?.
TiliK225 [7]

Answer:

Because photosynthesis ceases due to the lack of sunlight.

Explanation:

Plants typically absorb CO2 and release oxygen, but they also “exhale” CO2, particularly at night, when photosynthesis ceases due to the lack of sunlight. Forests also emit more CO2 when they are stressed by increasing temperatures.

5 0
2 years ago
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