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Alenkasestr [34]
3 years ago
13

Which of the following is an example of a model?

Chemistry
2 answers:
faust18 [17]3 years ago
7 0

B-a geographical map

Vlad1618 [11]3 years ago
5 0

B-a geographical map

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A compound is analyzed and found to be 50% sulfur and 50% oxygen. If the total amount of the sulfur oxide is 12.5 g, how many gr
il63 [147K]

Answer:

25.0g is the mass of sulfur

Explanation:

The sulfur and the oxygen are 50:50. That means there is 1 mole of S per mole of O.

To solve this question we need to convert the mass of O to moles, as moles of O = Moles of S, we can find the moles of S and its mass:

<em>Moles O = Moles S:</em>

12.5g O * (1mol / 16g) = 0.781 moles

<em>Mass S:</em>

0.781 moles * (32g / mol) =

<h3>25.0g is the mass of sulfur</h3>
7 0
3 years ago
Each element possesses unique chemical and physical properties. true or false
g100num [7]
True. An element's properties are based on their atomic numbers, atomic masses and electron configurations.


Hope it helped!
8 0
3 years ago
Most chloride salts are soluble. Which of the following is an exception to this generalization?
siniylev [52]

The exception to the rule concerning the solubility of chlorides in water is PbCl2.

The solubility rules give us an idea of which substances are soluble in water and what substances are not soluble in water. According to the solubility rules, chlorides are soluble in water.

However, chlorides of lead are not soluble in water hence, the exception to the rule is PbCl2.

Learn more: brainly.com/question/6505878

7 0
3 years ago
What would happen to the amount of matter on Earth if mass were not conserved during the changes on states?
Mademuasel [1]
What would happen to the amount of matter on earth if mass were not conserved during changes of state?
3 0
3 years ago
In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol). Calculate the number of moles of chl
kap26 [50]

Cl is stable as a diatomic molecule where the 2 Cl atoms are held together by a covalent bond

molar mass of the diatomic molecule is 70.9 g/mol

therefore 70.9 g of Cl₂ is - 1 mol

then 140 g of Cl₂ is - 1/70.9 x 140 = 1.97 mol

there are 1.97 mol of Cl₂ present

8 0
3 years ago
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