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Y_Kistochka [10]
3 years ago
7

Select the correct answer.

Chemistry
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

A number is right I think

jolli1 [7]3 years ago
7 0

Answer:

A.

beryllium fluoride

I hope it is helpful...

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Determine the mass in grams of 3.45 x 10^2 mol Co.
lara [203]

Answer:

molar mass CO = 28.01 g/mol

3.45 x 10^2 x 28.01 =9.66 x 10^3 g

mass Zn = 2.45 x 10^-2 x 65.39 g/mol=1.60 g => 1.60 x 10^0

Explanation:

mark me as brainlest

6 0
2 years ago
according to the Aufbau principle, which principle energy level would have higher energy, n=2 or n=5?
mars1129 [50]

Answer:b

Explanation:

8 0
2 years ago
Please help! 35 points for a valid answer!
Furkat [3]

Answer:

Oxidation  half  reaction  is  written   as    follows when  using  using  reduction potential  chart

example  when  using  copper  it is  written  as  follows

CU2+   +2e-  --> c(s)  +0.34v

oxidasation  is the  loos  of  electron  hence copper oxidation  potential  is  as  follows

cu (s)  -->  CU2+   +2e    -0.34v

Explanation:

6 0
3 years ago
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What system is responsible for transporting food, waste, and gases throughout the body?
Tju [1.3M]
Digestive I think, that transfers food.
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In a high-mass star, hydrogen fusion occurs via the choose one: a. spin-spin interaction. b. proton-proton chain. c. cno cycle.
Lerok [7]

In a high-mass star, hydrogen fusion occurs via the CNO (Carbon-Nitrogen-Oxygen) cycle.

According to the life cycle of a star, there are three main phases in the life of a star: The initial phase (a quick phase), short phase or supergiant phase and death phase or supernova explosion.

the CNO cycle means Carbon-Nitrogen-Oxygen cycle and this process tale place during main sequence phase.

In this phase, hydrogen fuses into helium as a result of six different reaction taking place inside a star.

The first step of the sequence begins when the nucleus of carbon 12 isotope emits gamma rays after capturing a proton and produces nitrogen-13.

This whole cycle is known as stellar nucleosynthesis.

If you need to learn more about Carbon-Nitrogen Cycle click here:

brainly.com/question/13022835


#SPJ4

8 0
2 years ago
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