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Anon25 [30]
3 years ago
8

2

Chemistry
1 answer:
Gemiola [76]3 years ago
7 0

Answer:

the physical and chemical properties of the products are different from the reactants

Explanation:

A chemical reaction involves the chemical combination of two or more elements/compounds called Reactants to give one or more different elements/compounds called Products. A chemical reaction occurs in such a way that the atoms of the reactants are restructured to form product(s) that is/are entirely different from the reactants.

In a chemical reaction, the physical and chemical properties of the products differ from that of the reactants since different chemical compounds/elements are formed as products. The physical properties of a substance, which include colour, melting and boiling point etc. will differ in the reactants and products formed. Also, the chemical structure and identity of the reactants will be changed to give rise to a different chemical property in the products.

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Which of the following molecules is a polymer of a smaller carbohydrate unit?a. lactaseb. glucosec. glycogend. sucrosee. triacyl
Alex787 [66]

Answer:

c. glycogen - is a polyssaccharide composed from sub-units of glucose

Explanation:

a. lactase - this is an enzyme compouse of many aminoacids and it has a complex structure

lactose - is a disaccharide composed from sub-units of galactose and glucose

b. glucose - is a monosaccharide

c. glycogen - is a polyssaccharide composed from sub-units of glucose

d. sucrose -  a disaccharide composed from sub-units of glucose and fructose

e. triacylglycerol - is formed by condensation of glycerol with three molecules of fatty acids

7 0
3 years ago
What is the concentration of chloride ion when 16.8ml of a 0.554 M solution of barium chloride is combined with 16.8ml of a 0.59
ozzi

Answer:

The concentration of chloride ion is 2.887 M.

Explanation:

Here we have a combination BaCl₂  and AlCl₃

1 mole BaCl₂ can produce 2 moles chloride ions as follows;

BaCl₂ → Ba²⁺ + 2Cl⁻

Therefore;

0.554  mole BaCl₂ can produce 2×0.554  moles chloride ions;

1 mole AlCl₃ can produce 3 moles chloride ions as follows;

AlCl₃ → Al³⁺ + 3Cl⁻

Therefore;

0.593 mole AlCl₃ can produce 3×0.593 moles chloride ions

Total concentration of chloride ions = 2×0.554 + 3×0.593 = 2.887 moles of Cl⁻ in 2×16.8 ml solution

The concentration of Cl⁻ is 2.887 M

4 0
3 years ago
If 2 or more elements are involved in a chemical reaction, they will most likely form a/an
wlad13 [49]

the correct answer would be mixture because compound uses the same element

8 0
3 years ago
Which of these takes place when a chemical change occurs?
zmey [24]

Answer:

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change.

Explanation:

7 0
3 years ago
How do you predict the geometrical shape of NH3 on VSEPR model
Sauron [17]

Answer:

NH3 Ammonia

Explanation:

Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.

6 0
3 years ago
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