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konstantin123 [22]
2 years ago
10

Type the letter of the correct answer in the blank space. The image shows the combustion of methane. Which equation represents t

his chemical reaction? Screenshot 2021-09-29 092155. Png A. CH4 O2 → CO2 H2O B. 2CH4 2O2 → CO2 2H2O C. CH4 2O2 → 2CO2 H2O D. CH4 O2 → 2CO2 2 H2O E. CH4 2O2 → CO2 2H2O.
Chemistry
1 answer:
Talja [164]2 years ago
7 0

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation:

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Colt1911 [192]

c. table salt is a metalloid with properties of both reactants

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2 years ago
What is a rule for determining the atomic mass of an atom or ion ?
In-s [12.5K]

Answer:

Mass = Number of neutrons + Atomic number (aka number of protons)

Explanation:

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3 years ago
To this day, scientists are interested in compressing gases other than nitrogen to extreme pressures. Which other gas does the a
myrzilka [38]

The other gas which the article mentioned is Helium gas.

<h3>What is Compression?</h3>

This refers to the squeezing or shortening of a substance which is most often done by  increasing the temperature.

The information scientists hope to gain by compressing this gas into a solid is by studying the molecular structures and using it in the production of other substances which is why Nitrogen and Helium are the gases being studied in this scenario.

Read more about Compression  here brainly.com/question/17266589

4 0
2 years ago
How much heat is lost when 1277 g of H20 at 400 K is changed into ice at 263 K? Plz help I’ll give you brainliest 20 points
OLga [1]

The heat lost is -7.32*10^-^5J

The heat lost when the ice is cooled from 400k to 263K can be calculated using the formula of heat transfer.

<h3>Heat Transfer</h3>

This is the heat transferred from a body of higher temperature to a body of lower temperature.

Q = mc(\delta)T

  • Q = Heat Transfer
  • m = mass = 1277g
  • ΔT  = change in temperature

\delta T = (400 - 273) - (263 - 273) = \\&#10;\delta T = T_2 - T_1\\&#10;\delta T = -10 - 127\\&#10;\delta T = -137^0C

We converted the temperature from kelvin scale into Celsius scale and find the change in temperature.

Solving for heat transfer

Q = mc\delta T\\&#10;Q = 1277 * 4.186 * -137\\&#10;Q = -732336.514J

The heat loss is approximately -7.32*10^-^5J

Learn more on heat transfer here;

brainly.com/question/16055406

6 0
2 years ago
One two three four five six
Sergio039 [100]

Answer:

7

8

9

10.

better check book pages for this kinda answer.

8 0
2 years ago
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