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nlexa [21]
3 years ago
10

Which component of blood allows oxygen from the air to move from the lungs to cells of the body?

Chemistry
1 answer:
kaheart [24]3 years ago
4 0

Answer: Red blood cells

Explanation:

oxygen moves thru hemoglobin

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5. _______ is the combining capacity of atom with other atoms to form a molecule or a compound .​
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Answer:

valancy

Explanation:

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2 years ago
Which of the following is a binary compound?<br> K2SO4<br> Ni(OH)2<br> BaCO3<br> Mn2O7
monitta
The answer is either b or d .
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What is the balanced equation of iron (iii) hydrogen carbonate?​
Lynna [10]
<h3>Answer:</h3>

2Fe(HCO₃)₃ → Fe₂(CO₃)₃ + 3H₂O + 3CO₂

<h3>Explanation:</h3>
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  • The decomposition reaction Iron (iii) hydrogen carbonate yield iron (iii) carbonate, water and carbon dioxide.

        Fe(HCO₃)₃ → Fe₂(CO₃)₃ + H₂O + CO₂

  • A balanced equation is the one in which the number of atoms of each element are equal on both side of the equation.
  • Therefore; the balanced equation for the decomposition of Iron (iii) hydrogen carbonate is given by;

2Fe(HCO₃)₃ → Fe₂(CO₃)₃ + 3H₂O + 3CO₂

6 0
3 years ago
How many hours will it take for the concentration of methyl isonitrile to drop to 14.0 %% of its initial value?
tiny-mole [99]

This is an incomplete question, here is a complete question.

The rearrangement of methyl isonitrile (CH₃NC) to acetonitrile (CH₃NC) is a first-order reaction and has a rate constant of 5.11 × 10⁻⁵ s⁻¹ at 472 K. If the initial concentration of CH₃NC is 3.00 × 10⁻² M :

How many hours will it take for the concentration of methyl isonitrile to drop to 14.0 % of its initial value?

Answer : The time taken will be, 10.7 hours

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 5.11\times 10^{-5}s^{-1}

t = time passed by the sample  = ?

a = let initial amount of the reactant  = 100

a - x = amount left after decay process = 14 % of 100 = 14

Now put all the given values in above equation, we get

t=\frac{2.303}{5.11\times 10^{-5}}\log\frac{100}{14}

t=38482.72s=\frac{38482.72}{3600}=10.7hr

Therefore, the time taken will be, 10.7 hours

7 0
3 years ago
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