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Hunter-Best [27]
3 years ago
12

Can someone help me with 10 and 11 plz. I will mark them Brainliest

Chemistry
1 answer:
hjlf3 years ago
5 0

Answer:

10. Because they  want to, and what they do is none of your buisness.

11. Firefighter-chemicals in fire-stopping have science.

Pharmacist-dealing with drugs and science was used to make them.

Chef-science involved in making food.-

Explanation:

Bruhh these were so easy do it yourself next time, it took me less than a minutte to do.

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Contrast aluminum and nitrogen. Show why aluminum is a metal and nitrogen is not.
Nitella [24]

Answer:

Nitrogen: Non- metal = they are poor conductors of heat and electricity, they are brittle solids, not ductile in their solid state - they cannot be rolled into wires or pounded into sheets. They are usually dull and therefore show no metallic luster and they do not reflect light. They also have a low density.

Aluminium: Metal= Offers a rare combination of valuable properties. It is one of the lightest metals in the world: it's almost three times lighter than iron but it's also very strong, extremely flexible and corrosion resistant because its surface is always covered in an extremely thin and yet very strong layer of oxide film. It doesn't magnetise, it's a great electricity conductor and forms alloys with practically all other metals.

Explanation:

5 0
3 years ago
Sodium phosphate dodecahydrate, na3po4(12h2o), is crystalline salt that is water soluble. describe what is present in an aqueous
Elza [17]
Hey there!:

Sodium cations and phosphate anions .

hope this helps!
7 0
3 years ago
The lone pair of electrons on the oxygen atom in an ester can form hydrogen bonds in some situations, but esters cannot form hyd
mixer [17]

Answer:

Esters have lower boiling point than alcohols.

Explanation:

Esters are the fruity smelling compounds which are formed from carboxylic acid and alcohol with the removal of water.

The general formula for the ester is RCOOR' which is prepared from RCOOH acid and R'OH alcohol.

Ester can not form strong hydrogen bond as there is no hydrogen attached to the electronegative atom in the ester and thus cannot form hydrogen bonds with each other.<u> Due to this factor, the interactions within the molecules of the ester is lower than that of alcohols which exist in strong hydrogen bonding. As a result, ester can be easily boiled when compared to the alcohols and thus they have lower value of boiling points.</u>

4 0
3 years ago
Arrange the following molecules in order of increasing bond polarity (highest bond polarity at the bottom):
Tom [10]
NF3– 0.94– third
NCl3–0.12– second
NBr3–0.08– first
CF4–1.43– fourth

NBr3—NCl3—NF3—CF4
Lowest. Highest
4 0
2 years ago
What do electrons and neutrons have in common?
bearhunter [10]
█ Answer <span>█

Electrons and neutrons are both sub-atomic particles.  

</span><span>Hope that helps! ★ <span>If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span></span><span>

</span>
8 0
3 years ago
Read 2 more answers
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