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SVETLANKA909090 [29]
2 years ago
9

Identifying balanced and unbalanced forces

Chemistry
1 answer:
stealth61 [152]2 years ago
8 0
In respective order:

Unbalanced

Balanced

Balanced

Unbalanced

Unbalanced
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Water can be formed in the following reaction:
andreev551 [17]

Answer is: 10 moles of water will be produced.

Balanced chemical reaction of formation of water:

2H₂ + O₂ → 2H₂O.

n(H₂) = 10 mol; amount of hydrogen gas.

From balanced chemical reaction: n(H₂) : n(H₂O) = 2 : 2 (1 : 1).

n(H₂O) = n(H₂).

n(H₂O) = 10 mol; amount of water.

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3 years ago
What biological processes can add co2 to the atmosphere?
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2 years ago
PLEASE HELP ME ASAPPPPP!!!!!!!!
Viefleur [7K]

Answer: time

Explanation: hi

7 0
2 years ago
You estimate that you sent 135 texts last week but when you get the bill, it was actually 175. Calculate the percent error
FinnZ [79.3K]

Answer: -40

Explanation: Percent error is calculated by subtracting the value you actually recieved from the literature value (175 in your case)  SO your answer should be 135-175=-40.

6 0
3 years ago
An atom or ion has 41 neutrons, 36 protons, and 36 electrons. Identify the element symbol, and determine the mass number
igor_vitrenko [27]

Answer:

Element symbol: Kr.

Mass number: 77.

Charge : 0.

Explanation:

Hello,

In this case, since such substance has the same amount of protons and electrons we can infer it is an atom whose number of neutrons is defined by considering its atomic mass or mass number and atomic number which is actually equal to the number of protons and electrons (36):

neutrons=atomic\ mass - atomic\ number

In such a way, solving for the atomic mass we obtain:

atomic\ mass=neutrons+ atomic\ number\\\\atomic\ mass=41+36=77

It means that the element is krypton (Kr) as it has 36 electrons and protons so its charge is 0.

Best regards.

5 0
3 years ago
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