13. Fe + Cu(NO3)2 -> Fe(NO3)2 + Cu<br> Is what type of reaction

Explain with examples following characteristics of chemical reactions: a. Change of colour b. Evolution of gas c. Change of smel

Andrei [34K]

Answer:

Explanation:

a. change of colour:

A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products. The products have different molecular structures than the reactants. Different atoms and molecules radiate different colours of light. Hence, there usually is a change in colour during a chemical reaction.

Eg: copper reactions with the elements

b. Evolution of gas:

A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide.

Eg: ammonium hydroxide breaks down to water and ammonia gas.

c. Change of smell :

Production of an Odor Some chemical changes produce new smells. ... The formation of gas bubbles is another indicator that a chemical change may have occured.

Eg: The chemical change that occurs when an egg is rotting produces the smell of sulfur.

d. Change of state:

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

Eg: candle wax (solid) melts initially to produce molten wax (liquid)

plz mark as brainliest!!!!

4 0

3 years ago

Explain using balanced chemical equations, the alkaline hydrolysis reaction of esters.

ser-zykov [4K]

Answer:

The alkaline hydrolysis of ester is known as saponification. When ester is heated with aqueous NaOH, sodium salt of acid and alcohol are formed.

3 0

2 years ago

Give the n and l values and the number of orbitals for sublevel 5g.

Pepsi [2]

The n and l values and the number of orbitals for sublevel 5g is :

5g shell , n= 5 subshell g , l = 4, Number of orbitals for sublevel = 9.

There are total four quantum numbers:

1) Principal quantum number , n

2) Angular quantum number , l

3) Magnetic quantum number , ml

4) spin quantum number , ms

For 5g shell, n = 5

subshell g , l = 4 ....0 - s , 1 - p , 2 - d, 3 - f, 4 -g

number of orbitals in subshell = (2l + 1) ( 2×4 + 1) = 9

Thus, The n and l values and the number of orbitals for sublevel 5g is :

5g shell , n= 5 subshell g , l = 4, Number of orbitals for sublevel = 9.

To learn more about quantum numbers here

brainly.com/question/14650894

#SPJ1

6 0

1 year ago

Barium acetate, Ba(C2H3O2)2, is a common barium salt that is highly poisonous. It was featured in a 2001 episode of Forensic Fil

aleksley [76]

Answer:

209.68

Explanation:

The only number that is relevant (though the rest are quite interesting) is the last one 1.98 * 10^24

1 mole of Barium Acetate Contains 6.02*10^23 particles.

There are 4 moles of carbon to every mole of Barium Acetate.

1.98 * 10^24 atoms / (4*6.02*10^23)

0.8223 moles of Ba(C2H3O2)2

Ba = 137

4C = 4*12 48

6H = 6*1 6

4O = 4*16 64

1mole 255 grams

0.8223 * 255 = 209.68 grams

I have used rounded masses for these elements depending on the periodic table you use. Go through the question with your masses to get a more accurate answer. My answer will not differ by much. It is a guide.

8 0

3 years ago

Which sequence of atomic numbers represents elements that have similar chemical properties?

Savatey [412]

C is the correct answer I think have a good day

6 0

2 years ago

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13. Fe + Cu(NO3)2 -> Fe(NO3)2 + Cu Is what type of reaction