3 years ago

Circle all that apply for an anion.

Chemistry

1 answer:

Delvig [45]3 years ago

4 0

Answer:

b. d. f. h

Explanation:

Anions are negatively charged. They are usually non metals with few exceptions. They need to gain electrons in order to form and they are always listed after cation in a compound.

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An element like silicon is not usually used to make wires or pans because it?

svetlana [45]

It is not good conductors of electricity or heat!

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3 years ago

For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l

Lyrx [107]

CaBr₂(s) → Ca⁺²(aq) + 2Br⁻ (aq) ΔS>0

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State which statement is a physical change or a chemical change:

Oliga [24]

Answer:

Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

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Which of the objects in the table has the most gravitational potential energy? Explain your answer.

Ganezh [65]

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Bowling Ball

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The bowling ball has the highest gravitational potential energy because the height at which it will fall is the highest of the rest objects on the table.

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2 years ago

A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.

lana66690 [7]

<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

$\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol$

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

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3 years ago

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