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Sedaia [141]
4 years ago
14

In an experiment, the control group is used to test the effect of the independent

Chemistry
1 answer:
olchik [2.2K]4 years ago
3 0
True, the control group is the thing to compare the end result to, to see if the project worked
hoped this helped :)
You might be interested in
A closed, adjustable cylinder containing 6.2 moles of oxygen gas has a volume of 4.3 liters and a pressure of 3.8 atmospheres. I
il63 [147K]

Answer:

The new pressure is 1.05 atm

Explanation:

Step 1: Data given

Number of moles oxygen gas = 6.2 moles

Volume of the cylinder = 4.3 L

Pressure of the gas = 3.8 atm

The volume changed to 15.5 L

Step 2: Calculate the new pressure

P1*V1 = P2*V2

⇒with P1 = the initial pressure of the gas = 3.8 atm

⇒with V1 = the initial volume = 4.3 L

⇒with V2 = the increased volume = 15.5 L

⇒with P2 = the new pressure = TO BE DETERMINED

3.8 atm * 4.3 L = 15.5 L * P2

P2 = (3.8 atm *4.3 L) / 15.5 L

P2 = 1.05 atm

The new pressure is 1.05 atm

5 0
3 years ago
Help me ples i will give branless just help
Elina [12.6K]

Answer:

Interphase: the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.

Mitosis: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). The major purpose of mitosis is for growth and to replace worn out cells.

Cytokinesis: Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. ... Mitosis and each of the two meiotic divisions result in two separate nuclei contained within a single cell.

Explanation:

I learned about this and it was  pretty confusing. But once you start learning this more, you'll definitely get it! :D

4 0
3 years ago
What is the electronic configuration of Au3+?
Anettt [7]

Answer:

AU^{3+} : [Rn] 5f^3

Explanation:

Writing electronic configuration of any element you should know atomic number of that element ,

and also electrons are filling according to their energy level and first electron is filled in the lower energy orbital

and it follows n+1 rule if n+1 is same for two orbital electron will go first in the lowest value of n.

writing electronic configuration of ion can be done like first for their neutral atom and then add or remove electron it will make things easy because there are also some eception case their you may do wrong.

AU : [Rn] 5f^3 6d^1 7s^2

remove three electron from outer most shell of AU

AU^{3+} : [Rn] 5f^3

4 0
4 years ago
How many protons, neutrons, and electrons are there in 70Se2- ?
Diano4ka-milaya [45]

Answer:

The answer to your question is Protons = 36, Neutrons = 26, Electrons = 36

Explanation:

                                ⁷⁰Se²⁻

The number of protons is equal to the atomic number, Selenium has an atomic number of 34. Then the number of protons = 34.

The number of neutrons = Mass number - number of protons

                                         = 70 - 34

                                         = 36

The number of electrons = number of protons + 2 because of the 2- next to the symbol of Selenium.

Number of electrons = 34 + 2

                                  = 36              

5 0
3 years ago
The United States rallied to the aid of Cuba in 1898 mainly because it
Mkey [24]
The answer is C Had a military base to protect
6 0
3 years ago
Read 2 more answers
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