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Novay_Z [31]
3 years ago
5

Oh no! I dash (lose) my purse ​

Chemistry
1 answer:
max2010maxim [7]3 years ago
8 0

Answer:

Ok

Explanation:

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A 20.0 mL sample of glycerol has a mass of 25.2 grams. What is the mass of a 57 mL sample of glycerol?
dsp73

Answer:

Density = 25.2 g/20.0 ml = 1.26 g/ml

57 ml x 1.26 g/ml = 71.8 g

4 0
4 years ago
Read 2 more answers
Calcium carbonate is most likely to dissolve in water with which characteristics?
Marysya12 [62]

Calcium carbonate is most likely to dissolve in water with:

e. Lots of Carbon dioxide and colder temperature.

Explanation:

  • Calcium carbonate is very sparingly soluble in water. However, it has been observed to dissolve in cold water with higher concentration of Carbon dioxide.
  • The reason behind the observation is the formation of Calcium bicarbonate which is soluble in water.
  • Higher concentration of Carbon dioxide in water turns it acidic. When this acidic water reacts with calcium carbonate it forms Calcium bicarbonate which is soluble in water.
  • So,Calcium carbonate is most likely to dissolve in water with lots of Carbon dioxide and colder temperature.
4 0
3 years ago
What is the mass of 20.0 L of sulfur dioxide (SO2) at STP?
larisa86 [58]

Answer:

Mass = 57.05 g

Explanation:

Given data:

Volume of SO₂ = 20.0 L

Temperature = standard = 273 K

Pressure = standard = 1 atm

Mass of SO₂ = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

n = PV/RT

n = 1 atm ×  20.0 L / 0.0821 atm.L/ mol.K× 273 k

n =  20.0  / 22.41/mol

n = 0.89 mol

Mass of SO₂:

Mass = number of moles × molar mass

Mass = 0.89 mol × 64.1 g/mol

Mass = 57.05 g

6 0
3 years ago
What is the correct balanced chemical equation for this reaction?
Lapatulllka [165]
B)
CH₄ + 2O₂ ---> CO₂ + 2H₂O
7 0
3 years ago
Read 2 more answers
The conversion of one mole of water from the solid to the liquid phase at the phase transition temperature requires the absorpti
dybincka [34]

Answer: heat

Explanation:

Water at solid is called ICE. This ice absorbs HEAT from its environment, and undergoes a process called melting to convert to liquid, this transition occurs at the melting point of ice

8 0
3 years ago
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