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USPshnik [31]
3 years ago
5

Min is conducting an experiment where he compares the properties of water and lemonade. The first stage of the experiment is foc

using only on the physical properties of the water and lemonade. Which property is not an example of a physical property?
Group of answer choices

solubility

electrical conductivity

flammability

magnetism
Chemistry
1 answer:
vampirchik [111]3 years ago
6 0

Answer: i need help

Explanation:

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Under certain conditions Argon gas diffuses at a rate of 3.2 cm per second under the same conditions an unknown gas diffuses at
kozerog [31]

Answer:

20 g/mol

Explanation:

We can use <em>Graham’s Law of diffusion</em>:

The rate of diffusion (<em>r</em>) of a gas is inversely proportional to the square root of its molar mass (<em>M</em>).

r = \frac{1 }{\sqrt{M}}

If you have two gases, the ratio of their rates of diffusion is

\frac{r_{2}}{r_{1}} = \sqrt{\frac{M_{1}}{M_{2}}}

Squaring both sides, we get

(\frac{r_{2}}{r_{1}})^{2} = \frac{M_{1}}{M_{2}}

Solve for <em>M</em>₂:

M_{2} = M_{1} \times (\frac{r_{1}}{r_{2}})^{2}

M_{2} = \text{39.95 g/mol} \times (\frac{\text{3.2 cm/s}}{\text{4.5 cm/s}})^{2}= \text{39.95 g/mol} \times (0.711 )^{2}

= \text{39.95 g/mol} \times 0.506 = \textbf{20 g/mol}

7 0
3 years ago
How do vapors and gases differ
olya-2409 [2.1K]

Answer:

Difference between Vapor and Gas

Usually, a vapour phase consists of a phase with two different substances at room temperature, whereas a gas phase consists of a single substance at a defined thermodynamic range, at room temperature

Explanation:

4 0
3 years ago
Why is there an energy crisis if energy is supposedly conserved? Explain your answer and cite one example
faltersainse [42]

Answer:

Energy can neither be created nor destroyed, but it does change its form. And not all forms of energy are usable and it gets dissipated as heat energy and sound energy. The energy that is wasted cannot be recovered.

3 0
2 years ago
What is the mole fraction of ethanol in a mixture of 0.25 mol of ethanol and 0.4 mol of methanol? Report your answer to the hund
snow_tiger [21]

Answer:

0.3846

Explanation:

i used fractions

6 0
3 years ago
Which of the following is an example of the electrostatic force acting in a atom
kumpel [21]
Electrostatic forces work on anything that is charged. 
<span>Usually only protons and electrons, but also some other elementary particles. 

</span>d. a proton attracting an electron
7 0
3 years ago
Read 2 more answers
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