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k0ka [10]
3 years ago
10

In the substance, iron (II) sulfate, which element is in the greatest percentage by mass?

Chemistry
1 answer:
nekit [7.7K]3 years ago
7 0
Oxygen (O) = 42,129%
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djverab [1.8K]

Answer:

=60 milligrams

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<u>KA</u>

3 0
3 years ago
1.) Why does carbon form covalent bonds?
juin [17]

For #1, I'd say it's "It will usually bond to multiple atoms which can provide a total of 4 additional electrons."

2. Ionic (I'm quite certain because anions/cations (-1 & +1) are Ionic from what I recall, if that's true it's Ionic.
3. "comparison of the associated families to which the elements belong" and
"the difference in electronegativities" are what I would choose, as I mentioned in a comment earlier.

If I'm wrong let me know, but I am at least 80% sure that these responses are correct from what I remember in Chemistry.

7 0
3 years ago
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What is a small-ball shaped organelle that helps the cell break down nutrients and old cell parts.
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Lysosome: only ones that  break down old cell parts<span>
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3 years ago
Calculate the amount in grams of Na2CO3 needed in a reaction with HCl to produce 120g NaCl?
klemol [59]
The balanced chemical reaction is written as :

Na2CO3<span> + 2HCl === 2NaCl + H2O + CO2
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We are given the amount of NaCl to be produced from the reaction. This will be the starting point for the calculations. We do as follows:

120 g NaCl ( 1 mol / 58.44 g) ( 1 mol Na2CO3 / 2 mol NaCl)( 105.99 g / 1 mol ) = 1108.82 g Na2CO3 needed
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Question 1<br>Write the next three numbers in the sequence<br>2, 10, 50, 250,-<br>​
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1250, 6250, and 31250
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