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Vera_Pavlovna [14]
3 years ago
14

Types of atoms. The basic unit of matter. Pure substance is what?

Chemistry
2 answers:
ivanzaharov [21]3 years ago
7 0

Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element. Elements made of only one kind of atom. Because of this, elements are called "pure" substances.

hope this helps :)

Serhud [2]3 years ago
4 0

A pure substance is a substance that doesnt have any additional ions added to it

For example, in bottled water there are Magnesium ions in it along with others. This is NOT PURE WATER

Also pure substances can be retrieved using separating techniques

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3 years ago
The acceleration of the car with the data in the table above would bem/s2. If the applied force were cut in half, what do you pr
steposvetlana [31]

Answer:

1. 0.33. 2. 0.17

Explanation:

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4 0
3 years ago
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As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 yesrs of operating 104 nuclear power plants.
goblinko [34]

Answer:  a. 0.8 tons p. month.

Explanation:

Given: Total nuclear waste = 60,000 metric tons

Time take = 60 years = 12 x 60 months   [ 1 year = 12 months]

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Now , Average  waste produced by each plant = \dfrac{\text{Total waste}}{\text{Time x Number of plants}}

=\dfrac{60000}{720\times104}\approx0.8\text{ tons per month.}

Hence, 0.8 tons p. month is produced by each plant.

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5 0
2 years ago
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Explain why 5.00 grams of salt does not contain the same number of particles as 5.0 grams of sugar​
Tom [10]

Answer:

5.00 grams of salt contain more particles than 5.0 grams of sugar​

Explanation:

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Sugar = C₁₂H₂₂O₁₁

Molar mass = 342.3 g/mol

Sugar's molar mass is higher than salt.

So 1 mol of sugar weighs more than 1 mol of salt

But 5 grams of salt occupies more mole than 5 grams of sugar

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5 grams of sugar = 5g/ 342.3 g/m = 0.014 moles

In conclusion, we have more moles of salt in 5 grams; therefore there are more particles than in 5 g of sugar.

3 0
3 years ago
How does the law of conservation of matter apply to chemical equations?
Tasya [4]

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Explanation:

3 0
3 years ago
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