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3 years ago

Which is not a descriptor or tactic used by abusers?

Chemistry

1 answer:

attashe74 [19]3 years ago

4 0

It should be B. All of the other choices are used often by abusers

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What pressure is required to reduce 40 ml of a gas at standard conditions to 20 ml at a temperature of 21?c? answer in units of

ElenaW [278]

If you need half the volume, you need double the pressure (V * p). Normal air pressure in the atmosphere is 101300 Pa so that means you need double that, thus 202600 Pa (or 2,026 bars)

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3 years ago

Fe (s) + S (I) --> Fes (s) In the experiment above, 7.62 g of Fe

Natali [406]

Answer:

Explanation:

calculation

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3 years ago

stearic acid and linoleic acid stearic acid and linoleic acid stearic acid has the higher melting point, because it has two more

elena55 [62]

Acid palmitic acid has higher melting point, because it has two more methylene groups.

$\text { Myristic acid } \rightarrow \mathrm{CH}_3\left(\mathrm{CH}_2\right)_{12} \mathrm{COOH} \\& \text { Palmitic acid } \rightarrow \mathrm{CH}_3\left(\mathrm{CH}_2\right)_{14} \mathrm{COOH} \\$

Acid palmitic acid has higher melting point, because it has two more methylene groups.

Giving it a greater surface area and therefore more intermolecular van der waals interact than the myristic acid.

stearic arid $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_{16} \mathrm{COOH}$

linoleic acid $\mathrm{C}_{18} \mathrm{H}_{32} \mathrm{O}_2$ (two double bond)

Stearic acid has higher Melting point, because it does not have any Carbon-Carbon double bonds, whereas linoleic acid has two cis double bonds which prevent the molecules from packing closely together.

Oleic Acid and Linoleic acid.

$\mathrm{C}_{18} \mathrm{H}_{34} \mathrm{O}_2$ -one double bond (cis)

Acid palmitic acid has higher melting point, because it has two more methylene groups.

For more such question on methylene group.

brainly.com/question/4279223

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1 year ago

If a cross-country runner covers a distance of 347 meters in 134 seconds what is her speed?

Vlad1618 [11]

Distance s=347 meters
time t=134 sec.
speed =s/t=347/134=2.5896 m/s nearly

5 0

3 years ago

Insects often get stuck in the sap of ancient trees. The sap along with the insect inside harden forming a fossil. What kind of

shepuryov [24]

Crystallization

This is because insects that usually get stuck in sap tend to harden or crystallize, so they cannot get out. That is why it is a crystallization.

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3 years ago