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Sauron [17]
3 years ago
9

What is the name of this molecule?

Chemistry
1 answer:
FromTheMoon [43]3 years ago
8 0

Answer:

pentanoic acid

Explanation:

it has 5 carbon atoms which gives it the parent name pent, and its attached to the ester group

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Ii) The valency of which the element is zero.<br>a) lead. b) bromine c) helium. d) nitrogen​
stira [4]

Answer:

Helium, Neon, Radon and Argon have zero valency because they have their outer shell completely filled and are chemically inert gas. Was this answer helpful

Explanation:

hope it will help you

6 0
1 year ago
Read 2 more answers
Indicate the direction of polarity of each of the covalent bonds by placing the appropriate delta notation next to each end of t
o-na [289]

Answer:

C→O, O→Cl, O→F, C→N, C←Li, S ←H, S→Cl

Explanation:

The general convention for indicating polarity in molecules is that of showing the direction of polarity from the positive to the negative part of the bond. This is indicated in the answer by arrows that show the direction of the dipole.

The negative end of the dipole must be the more electronegative element while the positive end of the dipole is the less electronegative element, hence the answer shown above.

6 0
4 years ago
Cooling a gas in a rigid container causes
maxonik [38]

Answer:

B

Explanation:

Presumably the system is closed (nothing can escape or enter).

A: You're cooling the container so it shouldn't explode.

C: If the container is Closed, the volume cannot  increase or decrease.

D: is also impossible for the closed container reason.

B: The pressure has to decrease because the molecules are moving slower which decreases their velocity. If that happens the Force goes down.

B: Answer

4 0
3 years ago
Which choice confirms that one air mass is being replaced by another air mass in a given area?
Sedaia [141]

Answer:

Answer is A

Explanation:

Increase in wind

7 0
3 years ago
To determine the freezing point depression of a LiCl solution, Toni adds 0.411 g of LiCl to the sample test tube along with 19.7
Cerrena [4.2K]

Answer:

LiCl = 0.492 m

Explanation:

Molal concentration is the one that indicates the moles of solute that are contained in 1kg of solvent.

Our solute is lithium chloride, LiCl.

Our solvent is distilled water.

We do not have the mass of water, but we know the volume, so we should apply density to determine mass.

Density = mass / volume

Density . volume = mass

1 g/mL . 19.7 mL = 19.7 g

We convert g to kg → 19.7 g . 1 kg / 1000g = 0.0197 kg

Let's determine the moles of LiCl

0.411 g . 1 mol / 42.394 g = 9.69×10⁻³ moles

Molal concentration (m) = 9.69×10⁻³ mol / 0.0197 kg → 0.492 m

7 0
3 years ago
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