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nevsk [136]
3 years ago
12

Will give brainliest for correct answer and quick answer! help ;w;

Chemistry
1 answer:
anastassius [24]3 years ago
7 0

Answer:

c is correct answer my girl f

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How many grams of calcium carbonate, CaCO3, contain 48 grams of oxygen atoms?
Tamiku [17]

Answer:

(40 g O) / (15.99943 g O/mol) x (1 mol CaCO3 / 3 mol O) x (100.0875 g CaCO3/mol) =  

83 g CaCO3

So answer D), although three significant digits are not justified.

Your welcome! Please give me brainiest and have a Great day! <3

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3 years ago
Which of the following materials is useful for making molds because it has a low melting point?
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<span>Molds are created to achieve a specific design of a material. These materials either came from a process of having a higher or lower temperature. Therefore, the molder must have thermal resistant properties. Low melting points means that the material to be shaped came from a cooler process. Wood and metal have higher thermal conductivity and therefore can easily be cooled. The wax can turn really hard and can be unbreakable when present in colder materials due to the lipids present in it. Clay however can become a mold because of its low melting point.</span>
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After that have been up for a while thay are metal
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3 years ago
Draw the Lewis structure (including all lone pair electrons and any formal charges) for one of the four possible isomers of C3H9
Alexus [3.1K]

Answer and Explanation

The isomer picked is the N-Propylamine.

It has a lone pair of electron available on the electron rich Nitrogen and no formal charge.

Since it will be hard to draw the Lewis structure in this answer format, I'll attach a picture of the Lewis structure to this answer.

The lone pair of electron is shown by the two dots on the Nitrogen atom.

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Sedbober [7]

Answer and Explanation:

BINARY COMPOUND: A binary compound is that compound which is made up of exactly two elements there are a lot binary compound present for example :H_2O, NaCl,NH_3,H_2S etc

TERNARY COMPOUND : A ternary compound is that compound which is made up of exactly three elements there are a lot binary compound present for example : Na_2SO_4,H_2SO_4,CH_3C00H  etc

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4 years ago
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