List Four Chemical reactions

Chemistry

2 answers:

4vir4ik [10]3 years ago

5 0

Baking soda and vinegar
explosions
rust
fireworks

klasskru [66]3 years ago

4 0

You should know that chemical reactions are things that you can not change back.
Physical reactions like ripping paper is still physical, the "paper" has not really changed

1) baking soda and vinegar mixed together.
2) An oven cooking a pie.
3) Burning a sheet of paper
4) rust, old peeling of some kind.

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Can someone please help me !!<br>- It would mean a lot ❤️

Reptile [31]

_______________________________

<h2 /><h2 /><h2>Kendall</h2>

If something is heretic, it refers to certain characteristics that is coded in our DNA. In science we know that this is possible through understanding the workings of the chromosomes & their functions.

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6 0

4 years ago

Read 2 more answers

If 25 g of NH3, and 96 g of H2S react according to the following reaction, what is the

jeyben [28]

25 g of NH₃ will produce 47.8 g of (NH₄)₂S

<u>Explanation:</u>

2 NH₃ + H₂S ----> (NH₄)₂S

Molecular weight of NH₃ = 17 g/mol

Molecular weight of (NH₄)₂S = 68 g/mol

According to the balanced reaction:

2 X 17 g of NH₃ produces 68 g of (NH₄)₂S

1 g of NH₃ will produce $\frac{68}{34}$ g of (NH₄)₂S

25g of NH₃ will produce $\frac{65}{34} X 25 g$ of (NH₄)₂S

= 47.8 g of (NH₄)₂S

Therefore, 25 g of NH₃ will produce 47.8 g of (NH₄)₂S

4 0

3 years ago

Draw the structure of (z)-3-bromo-6-methyl-2-heptene. be sure the stereochemistry is drawn clearly.

Anna007 [38]

Explanation: In IUPAC, E-Z convention is given for describing the cis - trans notation to the isomers. According to CIP rule, the groups on the doubly bonded carbon atoms are given priorities based on the the atomic masses of first connected atom.

If the highest priority groups are on the same side, it is known as Z-form and if the highest priority groups are on opposite side, it is known as E-form.

We are given (Z)-3-bromo-6-methyl-2-heptene, in this the highest priority groups are bromine on one side and methyl- group on another side.

The structure is provided in the image below.