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spin [16.1K]
3 years ago
6

Robert has 4 grams of a substance and Jill has 10 grams of the same substance. Which of the following statements is true?

Chemistry
2 answers:
ELEN [110]3 years ago
5 0
If Robert has 4 grams of a substance and Jill has 10 grams of the same substance <span>Jill's sample will weigh more than Robert's sample.</span>
VLD [36.1K]3 years ago
5 0

Answer:

The correct answer is option is c.

Explanation:

Mass is defined as quantity of the matter contained by the body irrespective of its volume or any other forces acting on it.

Mass of substance Robert has =m_1= 4 grams

Mass of same substance Jill has =m_2 10 grams

4 grams < 10 grams

m_1

Sample of Jill is more in weight that the weight of the substance of Robert.

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Explanation:

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2 years ago
A molecule has sp2 hybridization with 1 lone pair.... The electron pair geometry of this molecule is: ... The geometry of this m
MrRa [10]

Answer:

The electron pair geometry is Trigonal planar

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Explanation:

The valence shell electron pair repulsion theory enables us to predict the shapes of molecules based on the number of electron pairs present on the valence shell of the central atom and based on the hybridization state of the central atom.

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2 years ago
Write a balanced equation to show the reaction of gaseous ethane with gaseous oxygen to form carbon monoxide gas and water vapor
Korolek [52]
<span>2 C2H6(g) + 5 O2(g) --------> 4 CO(g) + 6 H2O(g)

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7 0
3 years ago
What was the event that triggered Nicole’s deterioration
inn [45]

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8 0
3 years ago
Read 2 more answers
A chemist dissolves 484 .mg of pure perchloric acid in enough water to make up 240.mL of solution. Calculate the pH of the solut
sdas [7]

Answer:

1.70

Explanation:

The molar mass of perchloric acid is 100.46 g/mol. The moles corresponding to 484 mg (0.484 g) are:

0.484 g × (1 mol/100.46 g) = 4.82 × 10⁻³ mol

4.82 × 10⁻³ moles are dissolved in 240 mL (0.240 L) of solution. The molar concentration of perchloric acid is:

4.82 × 10⁻³ mol/0.240 L = 0.0201 M

Perchloric acid is a strong monoprotic acid, that is, it dissociates completely, so [H⁺] = 0.0201 M.

The pH is:

pH = -log [H⁺] = -log 0.0201 = 1.70

8 0
2 years ago
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