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ss7ja [257]
3 years ago
13

Give examples of five polymers that are manufactured using technological processes​

Chemistry
1 answer:
matrenka [14]3 years ago
4 0
Plastics, paints, rubber, foams, adhesives, sealants, varnishes and many more.
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What is the molar mass of NaC2H302?
andrezito [222]

Answer:

82.0343 g/mol

Explanation:

Count each element and the number of atoms for each element. Add them all together. Use the periodic table.

3 0
3 years ago
Which of the following are correct for zero-order reactions?
GREYUIT [131]

Answer:

The answer is "Choice A and Choice B"

Explanation:

The Zero-Order reactions are usually found if a substrate, like a surface or even a catalyst, is penetrated also by reactants. Its success rate doesn't depend mostly on the amounts of the various reaction in this reaction.

Let the Rate = k

As \frac{dx}{dt} \ rate\ \  K_0 doesn't depend on reaction rate, a higher reaction rate does not intensify the reaction.

By the rate k_0 =\frac{dx}{dt}, the created based and the reaction rate is about the same.

5 0
3 years ago
In a galvanic cell,a oxidation occurs at the (name of electrode)b.the cathode is the (sign) electrodec.cations flow in solution
Tatiana [17]

Answer: a) anode

b) positive

c) cathode

d) anode to cathode

Explanation:

Galvanic cell is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy.

In the galvanic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.  Thus the electrons are produced at anode and travel towards cathode.

Due to loss of electrons at anode, positive charge in concentrated in anode and negative charge is concentrated in cathode. To balance these charges , positive ions or cations from salt bridge move towards cathode and negative ions or anions from salt bridge move towards anode.

The balanced two-half reactions will be:

Oxidation half reaction : M(s)\rightarrow M^{n+}(aq)+ne^-

Reduction half reaction : X^{n+}(aq)+ne^-\rightarrow X(s)

Thus the overall reaction will be,

M(s)+X^{n+}(aq)\rightarrow M^{n+}(aq)+X(s)

7 0
3 years ago
The blue underlined part of the chemical formula above represents a(n) ______________.
Nataly [62]
I’m not totally sure but I think the answer is B
7 0
3 years ago
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would thi
Andrews [41]

Answer:

See detailed explanation.

Explanation:

Hello there!

In this case, according to the given description, it turns out possible for us to infer that the second fractionating column on top of the first one will favor the light product, in this case hexane as it has the lowest boiling point and molar mass; in such a way, we can tell the following:

a) The separation between hexane and heptane will be increased as a purer hexane-rich product will be obtained on the top of the second column.

b) Will be increased as well, because the second column will remove more heptane.

c) Also, more pure heptane will be obtained on the bottom of the two columns, yet the most favored yield will be that of hexane.

All of the aforementioned is possible due to the fact that the second column will remove the amount of heptane that could not be removed on the top of the first column by taking the vapor-liquid equilibrium further from the first column's maximum separation, which is known as distillation sequences.

Regards!

8 0
3 years ago
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