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Soloha48 [4]
3 years ago
15

Susan was frantic: the small diamond had disappeared from her wedding ring! It had been there this morning, before she made brea

kfast, so now she was ransacking the kitchen. She searched the dirty, soapy dishwater in the sink. She rummaged through the fridge, overturning a carton of milk, a bottle of sweetened orange juice, a container of potato salad and a jug of pumpkin soup. Then it was the pantry's turn. She examined the bottle of vinegar, the sugar bowl and all of the baking supplies, releasing a cloud of flour into the air. She even emptied the salt shaker onto the bench and pawed through the salt in search of the diamond. As she slumped to the concrete floor in despair, surrounded by a complete mess, she finally saw it – glittering in the dog's water bowl. Identify five mixtures mentioned in the stor
Chemistry
1 answer:
Bezzdna [24]3 years ago
7 0

Answer:

No. 1 Susan was <u>Frantic</u>

No.2 panicked

No.3 determined

No.4 Despair

No.5 Releif

I really hope this helps, Good luck! :D

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5 0
3 years ago
What is the percent by mass of magnesium sulfate in MgSO4 · 7H2O?
Degger [83]

Answer: 48.83%

Explanation: Mass percent is the ratio of mass of the particular substance  to the total mass of given compound.

{\text {mass percentage}}=\frac{\text{mass of }MgSO_4}{\text {total mass}}\times 100\%

Mass of MgSO_4= 120g

Mass of MgSO_4.7H_2O= 246g

{\text {mass percentage}}=\frac{120g}{246g}\times 100\%=48.83\%

8 0
3 years ago
Scientists study different types of life on Earth and classify them into the 5 different
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5 0
3 years ago
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How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm
Citrus2011 [14]

<u>We are given:</u><u>_______________________________________________</u>

Volume of Gas (V) = 2.5L

Pressure (P) = 1.2 atm

Temperature (T) = 25°C  OR 25+273 = 298 K

Universal Gravitational Constant (R) = 0.0821

<u>Solving for number of moles:</u><u>___________________________________</u>

From the Ideal Gas Equation,

PV = nRT

(1.2)(2.5) = n(0.0821)(298)           [plugging the given values]

n = [(1.2)(2.5)] / [0.0821*298]

n = 300 / [298*8.21]

n = 0.12 moles

Hence, there are 0.12 moles of Oxygen in 2.5L of 1.2 atm gas when the temperature is 25°C

7 0
3 years ago
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