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Semenov [28]
3 years ago
11

Convert 0.54 km to dm

Chemistry
1 answer:
Kaylis [27]3 years ago
6 0

.54 km to dm is 5,400 decimeters. Hope this helps, have a BLESSED day! :-)

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A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
labwork [276]

Answer: 4 molL-1

Explanation:

Detailed solution is shown in the image attached. The number of moles of NaCl is first obtained. Since the molarity must be in units of molL-1, the volume is divided by 1000 and the formula stated in the solution is applied and the answer is given to one significant figure.

5 0
3 years ago
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12 g of powdered magnesium oxide reacts with nitric acid to
galben [10]

Answer:

80.8 g

Explanation:

First, let's write a balanced equation of this reaction

MgO + 2HNO₃ → Mg(NO₃)₂ + H₂O

Now let's convert grams to moles

We gotta find the weight of MgO

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We can use this to find out how much Magnesium Nitrate will be formed

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Convert moles to grams

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24 + 14 x 2 + 16 x 3 x 2 = 148 g/mol

148 x 0.3 = 80.8 g

4 0
3 years ago
BF3 + Li2SO3 ----> B2(SO3)3 + LiF What is the coefficient of lithium fluoride in the balanced chemical reaction?
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6 0
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Which of the following is not the same as 2.97 milligrams?
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Hi There!!!!!!

Which of the following is not the same as 2.97 milligrams?A)0.297 cg
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Which two elements are most abundant within the sun?
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Hydrogen and helium.
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3 years ago
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