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jolli1 [7]
3 years ago
6

I need help with the one with the pen on it

Chemistry
2 answers:
Setler [38]3 years ago
5 0
<span>The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems.</span>
Pavel [41]3 years ago
5 0
Q: What is the job of your heart?
A: Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs.


Answered this just to help out. I seen that your question was answered.
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MAGNESIUM (Mg)<br> +FLUORINE (F) =
bazaltina [42]

Answer:

MgF2 magnesium fluoride

4 0
3 years ago
A biology student set up an experiment to study 9 mice. On day 1, they were measured for weight and length. Then the mice were p
Sophie [7]
The independent variable would be the variable in the research that is being manipulated by the researcher. In this case, it would be temperature in the cage as it is what is being manipulated and changed in the research design. The dependent variable would be the variable that is being studied so, for this case, it would be the length and the weight of the mice. The constants are the factors that might affect the dependent variable but is held constant or the same by the researcher throughout the experiment. These are the size of the cage, amount of food and the exercise wheel. The flaw that the scientist would be studying the length of the mice since I don't think the temperature has any effect on it. And base from he results, the change in lengths are not conclusive.
4 0
3 years ago
An atom can be compared to our solar system because: WILL MAKE BRAINLIEST!
Sindrei [870]

Answer:

uh i think its D All of the above

Explanation:

sorry if its wrong

5 0
3 years ago
How many grams of hcl is dissolved in 500 ml of a 0.2 m hcl solution?
umka21 [38]
It well be 9025 because it will dissolve in 0.8 hcl soluiton

7 0
2 years ago
A student calculated the molarity of a solution prepared by dissolving 0.730 mol of table sugar (sucrose, C12H22O11) in 1.8x10^3
lara31 [8.8K]

Answer: C= 0.406 M

Explanation:

Solution.

ν

=

0.730

m

o

l

;

ν=0.730mol;

V

=

1.8

⋅

1

0

3

m

L

=

1.8

L

;

V=1.8⋅10

3 mL=1.8L;

C=0.730mol

1.8 L=0.406 M

C= 1.8L

0.730mol =0.406M

The student made a mistake because he did not convert a unit of volume from milliliters to liters. After all, molarity is defined as the number of moles of solute per liter of solution.

5 0
3 years ago
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