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3 years ago

1. The underlined portion of the chemical formula above is the _ and it represents ________________.

Chemistry

2 answers:

Mnenie [13.5K]3 years ago

3 0

1.Subscript,how many hydrogen molecules there are

2.No it is not balanced,oxygen is less than represented.

Allushta [10]3 years ago

3 0

1. The correct answer is B. Subscript; how many hydrogen molecules which are there in that one molecule.

Chemical formula above is a superscript and it represents hydrogen molecules in one molecule.

2. The correct answer is C. No, the equation is not balanced. In the equation the oxygen it has less atoms which represents the products.

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3 years ago

Calculate the number of oxygen atoms and its mass in 50g of CaCo3<br>

xz_007 [3.2K]

The number of oxygen atoms = 3

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<h3>Further explanation</h3>

The formula of a compound shows the composition of the constituent elements

CaCO₃ is composed of 3 types of elements, namely Ca, C and O

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Ca = 1
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2 years ago

when you receive fluid in the hospital, it is often 0.9% saline solution. what would happen if the nurse used distilled water in

jasenka [17]

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3 years ago

Acetanilide has a solubility of 1.00 g/185 ml in 25 oc water and 1.00 g/20 ml in 100 oc water. what is the minimum volume of wat

Likurg_2 [28]

In the crystallization process the solid compound is dissolved in the solvent at elevated temperature and the crystallize product obtained by slow cooling of the solution. Here the solubility of acetanilide at 100°C is 1g per 20mL of water. Thus to dissolve 500mg of acetanilide at high temperature that is 100°C we need 10mL of water.

Now at 25°C after the re-crystallization there will be some amount of dissolve acetanilide. Which can be calculated as- 185mL of water is needed to dissolve 1g or 1000mg of acetanilide at 25°C. Thus in 10mL of water there will be $\frac{10X1000}{185}=54.05$ gmg of acetanilide.

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3 years ago

1. The underlined portion of the chemical formula above is the _____ and it represents ____________________.

1. The underlined portion of the chemical formula above is the _ and it represents ________________.