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r-ruslan [8.4K]
4 years ago
13

Which group was fighting communists in Nicaragua in the 1980s?

Chemistry
1 answer:
stira [4]4 years ago
7 0
The answer is A, the contras  x Good luck!! :)

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Topics on how humans use energy pls can somebody give me a few..
kupik [55]

Answer: Humans use energy to carry out their daily activities, like moving around, working, running etc.

Explanation:

5 0
3 years ago
6. a) Why is isocyanic acid prepared ""in situ"" in the Dulcin experiment? [2 pts] b) Draw a plausible Lewis structure for isocy
ycow [4]

Answer:

As it gets hydrolyzed easily.

Explanation:

The isocyanic acid  may get polymerizes  easily into  cyanuric acid and  a polymer cyamelide

Also, even at 0 °C temperature it may react with mositure and gets hydrolyzed into ammonia an carbon dioxide. Thus we generally prepare it in situ. Even after synthesis it is stroed at dry ice or liquid nitrogen at very low temperature.

The lewis structure is shown in the figure.

6 0
3 years ago
Give structural formula of ethylene. What type of bond is found in between carbon and hydrogen? Why is the bond between carbon a
Sav [38]

Answer:

See explanation

Explanation:

The structure of ethylene is shown in the image attached. The two carbon atoms have a double covalent bond between them.

The two carbon atoms are sp2 hybridized. The bond between them is a covalent bond, there is one pi bond and one sigma bond between the carbon atoms. Between carbon and hydrogen, there are covalent bonds also. The covalent bonds are sigma bonds.

The pi bonds between carbon atoms is weaker than the sigma bonds between the carbon atoms. This is because, the side-by-side overlap the p orbitals in a pi bond is less effective than the end-to-end overlap of a sigma bond.

4 0
3 years ago
Which of the following is a nonrenewable energy source?
Ipatiy [6.2K]
B fossil energy

hope this helps!!
6 0
3 years ago
Calculate the mass percent composition for Al(HCO3)3
ZanzabumX [31]

Answer:

salamat sapoints po lods thaks

7 0
2 years ago
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