3 years ago

The unit m3 measures a. length b. area c. volume d. time

Chemistry

2 answers:

seraphim [82]3 years ago

8 0

Anything to the third power measures volume.

Hope this helps!

faltersainse [42]3 years ago

3 0

The answer is C volume :))

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Joelle is a manager at a construction company, and she is interested in the chemistry behind the materials they use. She has beg

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Answer: briitle would be easy to dislove

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3 years ago

What structural features help us identify a compound as an alkane, a cycloalkane, an alkene, an alkyne, a saturated hydrocarbon

elena55 [62]

1. Cycloalkane
2. Alkene
3. Saturated Hydrocarbon
4. Aromatic Hydrocarbon
5. Alkane
6. Alkyne

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3 years ago

You have 50 ml of a complex mixture of weak acids that contains some HF (pKa = 3.18) and some HCN (pKa = 9.21). Which is larger,

telo118 [61]

Answer:

$\frac{[F^{-}]}{[HF]}$ is larger

Explanation:

$pK_{a}=-logK_{a}$ , where $K_{a}$ is the acid dissociation constant.

For a monoprotic acid e.g. HA, $K_{a}=\frac{[H^{+}][A^{-}]}{[HA]}$ and $\frac{[A^{-}]}{[HA]}=\frac{K_{a}}{[H^{+}]}$

So, clearly, higher the $K_{a}$ value , lower will the the $pK_{a}$

In this mixture, at equilibrium, $[H^{+}]$ will be constant.

$K_{a}$ of HF is grater than $K_{a}$ of HCN

Hence, $(\frac{F^{-}}{[HF]}=\frac{K_{a}(HF)}{[H^{+}]})>(\frac{CN^{-}}{[HCN]}=\frac{K_{a}(HCN)}{[H^{+}]})$

So, $\frac{[F^{-}]}{[HF]}$ is larger

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4 years ago

Round to 3 significant figures.<br> 1.235

tigry1 [53]

Answer:

3 SigFigs = 1.24

1.24 x $10^{0}$

Explanation:

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4 years ago

Read 2 more answers

Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A graduated cylinder contains

Alekssandra [29.7K]

Answer:

TRY HARD!

Explanation:

DO UR WORK ANG GET IT DONE!

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1 year ago