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3 years ago

Is the element krypton noxious?

2 answers:

8 0

No because it is a noble gas it would need to be put with an alkiline metal become even remotely toxic in any way. Because it krypton being in the noble gases it has only 1 electron and as you might know Alinline metals have 7 and every element wants to have 8. so by putting 7 and 1 together you get 8.

Archy [21]3 years ago

7 0

I don't think so but it is in the noble gas section

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The synthesis of water proceeds according to this equation:

MrMuchimi

The answer is A. Increasing temperature of the reactants

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4 years ago

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The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCl (aq)) in 133 mL of water is ___ M (2 decimal

Lera25 [3.4K]

The molarity is 3.50 M/L.

Explanation:

Molarity is found to know the amount of the solute ions present in the given volume of solution. So we determine it using the ratio of the moles of solute to the volume of the solution.

As here the weight of the solute which is hydrochloric acid is given as 17g, so we need to find the moles of it. This can be done by dividing the given amount of HCl with the molecular weight of HCl.

Molecular weight of HCl = 1.01 + 35.45 = 36.46 g/mol

So the number of moles of HCl present here will be

$No.of moles = \frac{17}{36.46} =0.466$

So, 0.466 moles of HCl is present in the solution.

$Molarity = \frac{No.of moles of solute}{Volume of solution} = \frac{0.466}{133*10^{-3} }$

$Molarity = 3.50 M/L$

Thus, the molarity is 3.50 M/L.

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4 years ago

What is carbogen and it's uses

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Carbogen is a mixture of carbon dioxide and oxygen, it is used to stimulate breathing in the treatment of respiratory disease.

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3 years ago

Can someone name an element that doesn’t match its abbreviation?

sp2606 [1]

Answer:

Gold, silver and sodium.

Explanation:

Gold, silver and sodium are the name of the elements which does not match to their abbreviation. It is because those names are comes from other language. For example, the symbol of sodium is Na which comes from Natrium that is a Latin word. The symbol of gold is Au which comes from Aurum that is also a Latin word. The symbol of silver is Ag which comes from a Latin word i. e. Argentum.

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4 years ago

Which type of basin forms at divergent boundaries

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Answer:

A: rift

Explanation:

Divergent boundaries within continents initially produce rifts, which produce rift valleys.

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3 years ago

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