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Viktor [21]
3 years ago
10

3.The _____________________system works with the ___________________and ________________systems to supply oxygen and nutrients f

rom outside sources to the cells in the body. ( 3 choices)
cardiovascular
skeletal
respiratory
digestive
Chemistry
1 answer:
Nat2105 [25]3 years ago
3 0

Answer:

Cardiovascular, respiratory and digestive

Explanation:

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In which block of the periodic table is chromium (Cr) found? s block d block p block f block
Aneli [31]

<u>Answer:</u> The correct answer is d-block.

<u>Explanation:</u>

Chromium is the 24th element of the periodic table. It belongs to period 4 and Group 6 of the periodic table.

The number of electrons present in this element are 24 because number of electrons is equal to the atomic number of the element.

Electronic configuration of this element is: [Ar]4s^23d^4

As, the last electron is entering the d-orbital. Hence, this element belongs to d-block of the periodic table.

6 0
3 years ago
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I need help in chemistry 10th grade (sophomore)
Goryan [66]

Answer:

1) 2

2)4

3)5

4)2

5)2

6)1

7)3

8)5

9)4

10)4

11)3

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3 years ago
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An electrolyte can be checked to ensure that it has correct chemical composition by measuring its _____.
UNO [17]

Answer:

specific gravity

Explanation:

3 0
2 years ago
Discuss the different observations that you would record during an investigation into the energy transformations of a lamp that
densk [106]

Discuss the different observations that you would record during an investigation into the energy transformations of a lamp that uses electrical energy.

4 0
3 years ago
At a constant temperature, 600 mL of an ideal gas is at a pressure of 760 mmHg . If the volume is decreased to 300 mL, the press
belka [17]

Answer:

1520mmHg

Explanation:

Data obtained from the question include:

V1 (initial volume) = 600 mL

P1 (initial pressure) = 760 mmHg

V2 (final volume) = 300 mL

P2 (final pressure) =.?

Using the Boyle's law equation P1V1 = P2V2, the final pressure of the gas can easily be obtained as shown below:

P1V1 = P2V2

760 x 600 = P2 x 300

Divide both side by 300

P2 = (760 x 600) /300

P2 = 1520mmHg

The final pressure of the gas is 1520mmHg

7 0
3 years ago
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