Sodium and potassium are most likely to have similar physical and also chemical properties. They are in the same family called Alkali metals. Both will have the same valence electrons and are both very reactive.
Answer:
218 "cubic inch" = 0.05238 "rundlets"
Explanation:
From the conversion factors;
1.00 gal = 231 in3 = 3.78 L
But;
1.00 rundlet = 6.81 × 104 mL = 68.1 L (Converting to L by dividing by 1000)
231 in3 = 3.78 L
218 in3 = x
x = (218 * 3.78 ) / 231
x = 3.5673L
But 1 rudlet = 68.1 L
x rundlet = 3.5673L
x = (3.5673 * 1 ) / 68.1
x = 0.05238
The question is incomplete. the complete question is:
A chemistry student needs 35.0 g of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is . Calculate the volume of pentane the student should pour out.Round your answer to 3 significant digits.
Answer: The volume of pentane the student should pour out is 55.9 ml
Explanation:
Density is defined as the mass contained per unit volume.
To calculate volume of a substance, we use the equation:
We are given:
Density of pentane =
Mass of pentane = 35.0 g
Putting values in above equation, we get:
(Conversion factor: )
Hence, the volume of pentane is 55.9 ml
133.92g
Explanation:
Given parameters:
Equation of the reaction 2PbS + 30₂ → 2PbO + 2SO₂
Number of moles of 0₂ = 0.6moles
Unknown:
Mass of PbO produced = ?
Solution:
The number of moles is the quantity used in chemistry to express the amount of particles contained in a substance.
2PbS + 30₂ → 2PbO + 2SO₂
From the reaction;
3 moles of O₂ will produce 2 moles of PbO
0.6 moles of O₂ will then produce = 0.4moles
Now since the we know the number of moles of PbO;
Mass of PbO = number of moles of PbO x molar mass
molar mass of PbO = 207.2 + 16 = 223.2g/mol
Mass of PbO = 0.6 x 223.2 = 133.92g
learn more:
Number of moles brainly.com/question/1841136
Ideal gas brainly.com/question/13064292
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Answer:
The egg is changed from liquid to soli
Explanation:
The law of conservation of mass states that "Matter/mass can neither be created nor destroyed but can be converted from one form to another".
Inside of the Egg is liquid in nature and during the process of cooking the egg the liquid changes to solid.