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Olenka [21]
3 years ago
11

When a pan containing liquid and solid water (ice water) is put over the flame of a stove and stirred vigorously 1. the temperat

ure starts to rise immediately. 2. the temperature rises but only after the ice melts. 3. the temperature rises slowly at first then more and more rapidly?
Chemistry
1 answer:
nata0808 [166]3 years ago
3 0
<span>When a pan containing liquid and solid water (ice water) is put over the flame of a stove and stirred vigorously:</span> <span>2. the temperature rises but only after the ice melts.
It is known that ice lower the temperature of solution, after ice is melt temperature of liquid start to rise normally. Temperature of ice is 0</span>°C.
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The mass of an atom is equal to the number of
Solnce55 [7]

Explanation:

proton number and neutron number sums up to form the mass number

5 0
3 years ago
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How many grams are in 0.5 moles of C10H16?<br><br>Please show your work for marked brainliest!​
vagabundo [1.1K]

Answer:

68 g

Explanation:

Molar mass (C10H16) = 10*12.0 g/mol + 16*1.0 g/mol = (120+16)g/mol =

= 136 g/mol

m (C10H16) = n(C10H16)*M(C10H16) = 0.5 mol*136 g/mol = 68 g

n(C10H16) - number of moles of C10H16

M(C10H16) - molar mass of C10H16

5 0
4 years ago
a compound is found to contain 31.1% sulfur and 68.9% chlorine determine the empirical formula for the sulfur and chlorine sampl
ollegr [7]

Answer:

Empirical formula = S₁Cl₂ = SCl₂

Explanation:

The empirical formula of a compound is the simplest whole number ratio of each type of atom in a compound.

This compound contains 31.1% sulfur and 68.9% chlorine.

That is 100g of the compound contains 31.1 g of sulfur and 68.9 g of chlorine.

Convert the mass of each element to moles using the molar mass from the periodic table.

Moles of Sulfur = \frac{31.1}{32.065 } \\

= 0.9699

Moles of Chlorine= \frac{68.9}{35.453 } \\

= 1.9434

Divide each mole value by the smallest number of moles calculated.

Units of sulfur =  \frac{0.9699}{0.9699} \\

= 1

Units of Chlorine =  \frac{1.9434}{0.9699} \\

= 2

Empirical formula = S₁Cl₂ = SCl₂

8 0
3 years ago
What is the relationship between the number of carbon atoms in hydrocarbon at its boiling point ?
saveliy_v [14]
  • If no of carbon atoms be C
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So

\\ \tt\longmapsto C\propto BP

  • No of carbon atoms is directly proportional to the boiling point of the compound.
  • If no of carbon atoms increases in a hydrocarbon the length of carbon chain also increases and all carbons get wrapped around themselves.
  • Which causes increase in boiling point of compound.

Look the table below for the boiling points of some alkanes

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8 0
2 years ago
The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has
Vedmedyk [2.9K]
The ideal gas laws may be collectively expressed mathematically as:
PV/T = constant
Therefore, we may use this to determine the final pressure by equating the initial and final conditions:
PV/T = P * 2V / 2T
PV/T = PV/T
P = P
Therefore, the pressure is unchanged. It has stayed the same.
7 0
4 years ago
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