What are four things that a chemical change probably happened

Answers

Answer 1
Answer: Four signs that indicate a chemical change are as follows: 1) Change in color 2) Change in smell 3) Change in texture 4) Change in temprature

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What sequence of enzymes allows for the synthesis of glycogen from glucose-6-phosphate?a. UDP-glucose pyrophosphorylase, phosphoglucomutase, glycogen synthase, amylo-(1,4α1,6)-transglycosylase

b. phosphoglucomutase, UDP-glucose pyrophosphorylase, amylo-(1,4α1,6)-transglycosylase, glycogen phosphorylase

c. phosphoglucomutase, amylo-(1,4α1,6)-transglycosylase, UDP-glucose pyrophosphorylase, glycogen synthase

d. UDP-glucose pyrophosphorylase, phosphoglucomutase, amylo-(1,4α1,6)-transglycosylase, glycogen synthase

e. phosphoglucomutase, UDP-glucose pyrophosphorylase, glycogen synthase, amylo-(1,4α1,6)-transglycosylase

Answers

Answer:

The answer is (e) : phosphoglucomutase, UDP-glucose pyrophosphorylase, glycogen synthase then amylo-(1,4-1,6)-transglycosylase.

Explanation:

Phosphoglucomutase: Convert glucose-6-phosphate to glucose-1-phosphate.

UDP-glucose pyrophosphorylase:  Form UDP-glucose from glucose-1-phosphate.

Glycogen synthase: Add the new glucose from UDP-glucose to the growing glycogen chain.

Amylo-(1,4-1,6)-transglycosylase: This is a branching enzyme, it initiates formation of branches evolving from the main chain.

How do you convert L to mL

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Answer:1 Liter (L) is equal to 1000 milliliters (mL). To convert liters to mL, multiply the liter value by 1000. For example, to convert 2 liters to mL, multiply 2 by 1000, that makes 2000 mL is 2 L.

Explanation:

The melting points of canola oil, corn oil, sunflower oil, and peanut oil are 10° C, -11° C, -17° C, and -2° C, If you cool a mixture of these oils to 5°C, which one can you separate easily?a. corn oil
b. canola oil
c. peanut oil
d. sunflower oil

Answers

Answer:

            Canola Oil

Explanation:

The data given is as;

     Oil                                             Melting Point / Freezing Point

Canola Oil                                                            10 °C

Corn Oil                                                                -11 °C

Sunflower Oil                                                       -17 °C

Peanut Oil                                                           -2 °C

When the mixture of these oils is cooled to 5 °C only the Canola oil will solidify because it has a melting point of 10 °C and exists in solid state below 10 °C (Freezing Point). Therefore, it can easily be separated from remaining mixture which is present in liquid state.

Which of the following acts as a catalyst in your body? A. Sweat B. Enzymes C. Blood cells D. Sugar

Answers

In living things, enzymes serve as a catalyst.

What is catalyst?

A material known as a catalyst would be an element or just a compound that quickens chemical reactions. The procedure of catalysis involves introducing a catalyst to a chemical reaction to speed up the process. The reaction does not consume catalysts, and they are unaffected after it.

What are Enzymes?

Proteins called enzymes serve as biological catalysts. Chemical reactions are accelerated by catalysts. Numerous biological processes, including development, blood clotting, disease treatment, respiration, digestion, reproduction, as well as many more, are aided by enzymes.

Proteins are called enzymes to catalyze chemical reactions in our bodies. By reducing the activation energy, they serve as a catalyst to quicken the process. The enzyme has been referred to as a biocatalyst since it speeds up a chemical reaction again without altering its equilibrium.

Therefore, In living things, enzymes serve as a catalyst.

Hence, the correct answer will be option (B)

To know more about enzymes and catalyst.

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The answer is B. Enzymes.

Enzymes are biological catalysts that help cause reactions in your body.

Ventifacts are created by a process of erosion called A. deflation. B. flow. C. abrasion. D. creep.

Answers

Ventifacts are created by a process of erosion called.
(D.)Abrasion
C. abrasion (by windblown particles)

Compared to pure water, an aqueous solution of calcium chloride has a(1) higher boiling point and higher freezing point
(2) higher boiling point and lower freezing point
(3) lower boiling point and higher freezing point
(4) lower boiling point and lower freezing point

Answers

Answer: option (2) higher boiling point and lower freezing point.


Explanation:


Colligative properties are those properties of solution that depend on the concentraion of the solute.


Increase of boling point and depression of freezing point are two of those colligative properties.


Regarding the boiling point, as some impurities (in this case the solute calcium chloride) are present in the solvent (water) ,at the same temperature, less molecules of water will reach the surface to escape, at a given temperature. Hence, you have to increase the temperature to manage that the number of molecules and their speed increase and so all the molecules can escape fro, the liquid phase to form the gas. So, the boiling point of the water with the salt in it will be higher than the boiling point of pure water.


As for the freezing point, in a solution the particles of solute interfere with the attractive forces between the molecules of water avoiding that the solvent passes to solid state at the normal freezing point. Hence, the temperature to freeze will be lower.