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Natali [406]
3 years ago
12

What is the tissue through which water and minerals move up a plan?

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
7 0
It's easy , Xylem Tissue
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A protein has an isoelectric point (pI) of 9. Which of the following statements best describes the state of this protein in aque
Brums [2.3K]

Answer:

The  correct option is  D

Explanation:

From the question we are told that

 The pH of the aqueous solution is  pH  =  7

 The  isoelectric point  is  pl =  9

From the data given we see that the  

        pH is  below  pl

So the protein will have a net positive charge

4 0
4 years ago
Calculate the molecular mass of the element
Elanso [62]

Answer:

Cu3 (PO4)2

3×64 + 2×(31+ 4×16)

192 + 2×(31+64)

192 + 2×(95)

192+190

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4 0
2 years ago
Solve the problems. Express your answers to the correct number of significant figures.
Scilla [17]

1.    1.141

2.  119.3

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4 0
3 years ago
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Drag each label to the correct location on the table.
AleksAgata [21]

Explanation:

1) Boyle's Law: This law states that pressure is inversely related to the volume occupied by the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

  • When the size of the chamber is increased the volume occupied the gas will increase with which pressure exerted by the gas will decrease down.
  • When we press the inflated balloon the pressure on the gas is increased with which volume of the occupied by the gas inside the balloon decreased.

2) Charles' Law: This law states that volume occupied by the gas is directly related to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles)

  • The size of the balloon deceases because the in winters the temperature decreases with which volume of the gas present in the balloon also decreases.
  • When the flexible closed container is heated the temperature of the gas inside the container increases with which the volume occupied by the gas in the container will increase resulting in expanding of container.

3) Avogadro's Law: This law states that volume occupied by the gas is directly related to the number of moles of the gas at constant pressure and temperature.

V\propto n   (At constant temperature and pressure)

When we blow air into the balloon the umber of air particles increases with which the volume of the gas inside the balloon also increases resulting in increase in size of the balloon.

3 0
3 years ago
According to the chart below, which element makes up a large portion of the
otez555 [7]

Answer:

B. Hydrogen (H)

c. Nitrogen (N)

D. Sodium (Na)

Explanation:

6 0
3 years ago
Read 2 more answers
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