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givi [52]
3 years ago
9

What is the charge of the chromium ion in the compound crf3?

Chemistry
1 answer:
hichkok12 [17]3 years ago
8 0
The charge of chromium ion is determined by first calculating the total charge of flourine. Flourine has -1 but there is a subscript three, so it means the total charge of fluorine is -3. Since this is a neutral compound, the charges must add to zero, thus, the charge of chromium is +3.
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Is is true or false that ocean currents affect the climate I certain regions on earth​
vfiekz [6]

True. Coastal regions are affected if it is warm currents over the ocean it make for a higher temperature over the land, if it's a colder current over the ocean it makes for temperatures to drop over land. This happens when the wind blows in from the sea.

3 0
3 years ago
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Iron filings were mixed together with salt crystals. What unique property of iron would be BEST to separate the filings from the
Sedaia [141]
Iron has magnetic properties, so you would just need to hold a magnet over the mixture and the filings will come right out.
4 0
3 years ago
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A mixture of gaseous CO and H2, called synthesis gas, is used commercially to prepare methanol (CH3OH), a compound considered an
mr_godi [17]

Answer : The value of equilibrium constant (K) is, 424.3

Explanation :  Given,

Concentration of H_2 at equilibrium = 0.067 mol

Concentration of CO at equilibrium = 0.021 mol

Concentration of CH_3OH at equilibrium = 0.040 mol

The given chemical reaction is:

CO+2H_2\rightarrow CH_3OH

The expression for equilibrium constant is:

K_c=\frac{[CH_3OH]}{[CO][H_2]^2}

Now put all the given values in this expression, we get:

K_c=\frac{(0.040)}{(0.021)\times (0.067)^2}

K_c=424.3

Thus, the value of equilibrium constant (K) is, 424.3

4 0
3 years ago
Which of the following is one part of a chemical formula?
melomori [17]

Answer:

C

Explanation:

You would be correct in guessing C as in a chemical formula symbol of each element is stated.

Like Salt is Sodium Chloride, and its chemical formula is NaCl (Na=sodium, Cl= chloride)

7 0
3 years ago
Which of the following is a primary source?
bulgar [2K]

Answer:

I think its C a scientific journal article

Explanation:

Any kind of journal is considered a primary source because  journals contain info that the original author wrote. Encyclopedias are considered teritary sources, but im not sure if that counts ...so id go with journals.

6 0
2 years ago
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