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ch4aika [34]
3 years ago
9

Hey, i need help. the teacher provided notes but they don’t explain ANYTHING.

Chemistry
1 answer:
Arlecino [84]3 years ago
5 0

Answer:

I think

1. A

2. 400

3. 100

4. IDK srry

Explanation:

Ijust want to help, but I also want brainliest

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Identify both the cellular structure that assembles these proteins and the kinds of molecules that are used as the building bloc
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True or False? SLOW moving water deposits sediment.
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5 pts

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3 years ago
The box shows the element nitrogen as it appears in the periodic table.
Helen [10]

Answer:

I am 90% sure it is A - if I am wrong please let me know so I can fix my mistakes and improve

Explanation:

6 0
2 years ago
There are 85.63 g of CO2 gas in a container maintained at STP. How many liters of CO2 are there in that container?
konstantin123 [22]

Answer:

V = 48.64 L

Explanation:

Given data:

Mass of CO₂ = 85.63 g

Temperature = 273 K

Pressure = 1 atm

Volume of CO₂ = ?

Solution:

Number of moles of CO₂:

Number of moles = mass/molar mass

Number of moles = 85.63 g / 40 g/mol

Number of moles = 2.14 mol

Volume in Litter:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

1 atm× V = 2.14 mol ×0.0821 atm.L/mol.K  ×273 K

V = 48.64 atm.L / 1 atm

V = 48.64 L

7 0
2 years ago
Imagine an emission spectrum produced by a container of hydrogen gas. Changing the gas in the container from hydrogen to helium
irinina [24]

Answer: A) True

Explanation: The difference in energy levels in an atom is responsible for the emission of photons. Emitted photons have different energies because energy levels are discrete. The energy of a photon gives information about its frequency and subsequently, its colour.

As the two gases (Hydrogen & Helium) are distinctively different gases with different discrete energy levels in their atoms, it is logical that the frequency and colour of the emitted photons from their respective atoms would be different.

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3 years ago
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