CHEMISTRY HIGH SCHOOL

Red blood cells are formed by the in the center cavity of the bones.white cells,holes,capillaries,marrowx

Answers

Answer 1
Answer: Red blood cells are formed by the bone marrow in the center cavity of the bones. 

Related Questions

What is the OH- concentration of a solution whose pH is 12.40?
What is the volume of 4.5 moles of H2 at STP?
When nickel combines with fluorine to form nickel (III) fluoride, the charge of the nickel ion isa. Ni1+.c. Ni3+.b. Ni2+.d. Ni4+.
What kind of bond would a metal and a nonmetal typically make?A. An Ionic bond B. A Metallic bond C. A Double bond D. A Covalent bond
How many moles of ca(oh)2 are in 25ml of 1.5 M solution?

When are ionic bonds formed?

Answers

The Ionic bond occurs with formation of ions, which are by electrostatic attraction. Occurs between metal, which has a tendency to lose electrons, and a non-metal, which tends to receive electrons. An example of this type of link is sodium chloride (NaCl)

Na⁺ and Cl⁻

hope this helps!

How would you prepare 2.5 L of a 0.800M solution of KNO3?

Answers

First  find the mass of solute:

Molar mass KNO₃ = 101.1032 g/mol

mass =  Molarity * molar mass * volume

mass = 0.800 * 101.1032 * 2.5

mass = 202.2064 g of KNO₃

To prepare 2.5 L (0800 M) of KNO3 solution, must weigh 202.2064 g of salt, dissolve in a Beker, transfer with the help of a funnel of transfer to a volumetric flask, complete with water up to the mark, capping the balloon and finally shake the solution to mix.

hope this helps!

A change of phase never accompanies a. a change in volume b. a change in pressure
c. a change in temperature
d. a change in density
e. a change in structure

Answers

(b) there will be no change in pressure

A major disadvantage of a corporation is thea. difficulty in transferring ownership.
b. limited life.
c. difficulty in raising capital.
d. double taxation of the corporation s income and of dividends paid to shareholders.

Answers

A major disadvantage of a corporation is the double taxation of the corporation's income and of dividends paid to shareholders.
Corporations end up paying taxes twice. The corporation pays tax when it shows a profit. Secondly the corporation pays tax when it pays out dividends to its shareholders.  Sole proprietorships and partnerships are taxed as owners of the business. The owners of a corporation are taxed individually from the corporation. The advantage of this is that the owners of a corporation are not taxed on the corporation's profit. 

Final answer:

Option D. A major disadvantage of a corporation is double taxation of the corporation's income and dividends paid to shareholders.

Explanation:

A major disadvantage of a corporation is the double taxation of the corporation's income and dividends paid to shareholders. This means that not only is the corporation subject to income tax on its profits but the dividends distributed to shareholders are also taxed as the shareholders' personal income. This results in a higher overall tax burden for shareholders, making it a major disadvantage of a corporation.

Learn more about disadvantages of a corporation here:

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Find volume of 1 mole of helium gas when the pressure is 1.46 atm and the temperature is 270k

Answers

we can use the ideal gas law equation to find the volume of He
PV = nRT
where P - pressure 1.46 atm x 101 325 Pa/atm = 147 934.5 Pa 
V - volume 
n - number of moles - 1 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature - 270 K
substituting these values in the equation
147 934.5 Pa x V = 1 mol x 8.314 Jmol⁻¹K⁻¹ x 270 K
V = 15.17 L
the volume is 15.17 L

Compared to a 26-gram sample of NaCl(s) at STP, a 52-gram sample of NaCl(s) at STP has(1) a different density(2) a different gram-formula mass(3) the same chemical properties(4) the same volume

Answers

The answer is (3) the same chemical properties. The two samples are under same condition so they have same density. The gram-formula mass is the property of the matter itself. So it will not change. The volume will change when mass changes.
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