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4 years ago

Differentiate between a single atom of gold and a single atom of lead. (No Multiple Choice)

1 answer:

7 0

Lead has a different chemistry than most biological metals, but it can mimic some of them, such as calcium, iron, and zinc, because it tends to form 2+ ion like other metals, and these can be formed inside the body. Due to it different chemistry, lead prevents normal functioning of the enzymes it binds to, inhibiting them and poisoning the body.

Gold rarely forms ions, unless under extreme conditions that are not present in the human body. Gold ions, when ingested, are actually very toxic, so gold poisoning is possible. But because gold are so rare, gold poisoning is also a rare phenomenon.

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Which statement is the best description of a chemical bond?

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3 years ago

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Answer:

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Explanation:

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3 years ago

Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid at 25°C. The acid is followe

Anastaziya [24]

Answer:

$HCN~~Ka=4.9x10^-^1^0$

Explanation:

In this case, we have to remember the relationship between the Ka value and the pH. We can use the general reaction for any acid with his Ka value expression:

$HA~->~H^+~+~A^-$ $Ka=\frac{[H^+][A^-]}{[HA]}$

In the Ka expression, we have a proportional relationship between Ka and the concentration of $H^+$ . Therefore, if we have a higher Ka value we will have a smaller pH (lets keep in mind that with a higher

So, if we have to find the higher pH value we need to search the smaller Ka value in this case $HCN~~Ka=4.9x10^-^1^0$ .

I hope helps!

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3 years ago

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D. Deciduous Forest.

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3 years ago

A frying pan is connected to a 110-volt circuit. If the resistance of the frying pan is 10 ohms, how many amperes does the fryin

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Answer:

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Explanation:

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3 years ago