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jolli1 [7]
4 years ago
6

I need help with the one with the pen on it

Chemistry
2 answers:
Setler [38]4 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]4 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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Of the elements: b, c, f, li, and na. the element with the highest ionization energy is
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Carbon has the highest ionization energy as its energy 1086KJ\Mol and the rest are between 500 and 800. 
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4 years ago
What important material is absorbed by your digestive system besides water
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The monosaccharides, amino acids, bile salts, vitamins, and other nutrients are absorbed by the cells of the intestinal lining

Explanation:

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A saturated solution can become supersaturated under which of the following conditions
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the answer is d. when more solute is added

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The mixing of which pair of reactants will result in a precipitation reaction?
Maru [420]

Answer:

K2SO4(aq) + Ba(NO3)2(aq)

Explanation:

K2SO4(aq) + Ba(NO3)2(aq)= 2KNO3(aq) + BaSO4(s)

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Which precipitates as the insoluble product and Soluble KNO3 solution

8 0
3 years ago
Given the reaction: 4A1 + 302 - 2A1,O, How many grams of Al will be
dlinn [17]

Answer:

The answer to your question is 27 g of Al

Explanation:

Data

mass of Al = ?

moles of Al₂O₃ = 0.5

The correct formula for the product is Al₂O₃

Balanced chemical reaction

               4Al + 3O₂   ⇒   2Al₂O₃

Process

1.- Calculate the molar mass of the product

Al₂O₃ = (27 x 2) + (16 x 3)

         = 54 + 48

         = 102 g

2.- Convert the moles of Al₂O₃ to grams

               102 g ---------------- 1 mol

                 x       ----------------  0.5 moles

                 x = (0.5 x 102) / 1

                 x = 51 g of Al₂O₃

3.- Use proportions to calculate the mass of Al

                4(27) g of Al --------------- 2(102) g of Al₂O₃

                     x               --------------- 51 g

                        x = (51 x 4(27)) / 2(102)

                        x = 5508 / 204

                        x = 27 g of Al

4 0
3 years ago
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