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3 years ago

14

When dissolved in water, all acids will

2 answers:

yarga [219]3 years ago

8 0

B is the answer I think but I hope it is

poizon [28]3 years ago

7 0

When dissolved in water, acids donate hydrogen ions (H+). Hydrogen ions are hydrogen atoms that have lost an electron and now have just a proton, giving them a positive electrical charge. ... If a solution has a high concentration of H+ ions, then it is acidic.

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What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Ksivusya [100]

Answer:

The higher the frequency, the shorter the wavelength

Explanation:

All light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.

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3 years ago

Most substances become less dense as the temperature increases. Which substance is an exception to this rule

stealth61 [152]

The substance is water

6 0

4 years ago

Read 2 more answers

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Licemer1 [7]

Answer:

C, P, P, C, P

Explanation:

is it still the same thing but the physical property change or did the thing change too? that's what it's asking

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3 years ago

Brain’s family has a compost pile at home they need to put all the weeds the pull up from the garden in it as well as any vegeta

Flauer [41]

Answer: b. It would happen faster at warmer air temperatures

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5 0

3 years ago

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