For the first two
1. Will only give up one atom to be stable
2. Only 2 atoms
All you have to do is multiply 68 miles and 3.2 hours. It will give you the answer, 217.6 mph.
68x3.2=217.6 miles per hour.
Answer:
c. 0.2 M HNO₃ and 0.4 M NaF
.
Explanation:
A buffer is defined as the mixture of a weak acid with its conjugate base or a weak base with its conjugate acid.
A weak acid or weak base are defined as an acid or base that partially dissociates in aqueous solution. in contrast, a strong acid or base are acids or bases that is dissociated completely in water.
Thus:
a. 0,2M HNO₃ and 0.4 M NaNO₃. This is a mixture of a strong acid with its conjugate base. <em>IS NOT </em>a buffer.
b. 0.2 M HNO₃ and 0.4 M HF
. This is a mixture of two strong acids. <em>IS NOT </em>a buffer.
c. 0.2 M HNO₃ and 0.4 M NaF
. NaF is the conjugate base of a weak acid as HF is.
The reaction of HNO₃ with NaF is:
HNO₃ + NaF → HF + NaNO₃
That means that in solution you will have a weak acid (HF) with its conjugate base (NaF). Thus, this mixture <em>IS </em>a buffer.
d. 0.2 M HNO₃ and 0.4 M NaOH. This is the mixture of a strong acid with a strong base, thus, this <em>IS NOT </em>a buffer.
I hope it helps!
d. Too little sodium in the bloodstream.
Explanation:
A person suffering from hyponatremia can be said to have too little sodium in their bloodstream. The word hyponatremia stems from two latin words:
hypo - low
natrium - sodium
- A person suffering from this condition will lack thinking capabilities.
- Na, K and Mg are electrolytes in the body that helps to transmit electrical impulses.
- A person might feel nauseated, lack balance if they suffer from this illness.
- Hyponatremia can be caused by too much fluid in the body which can readily dissolve the available sodium.
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