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4 years ago

How do the number of protons in an atom affect the atom's identity?

Chemistry

1 answer:

fredd [130]4 years ago

6 0

Answer:

The number of protons in an atom define each individual element because the number of protons is the atomic number which is the defining property of an atom and never changes. The number of protons determines an atom's identity. For example, Oxygen has an atomic number of 8, so it has 8 protons, so no matter what ionic compound or molecule it's part of, every single Oxygen atom will always have 8 protons each.

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The second-order rate constant for the dimerization of a protein (P) P + P → P2 is 6.2 × 10−3/M · s at 25°C. Part 1 out of 2 If

siniylev [52]

Answer:

$r=1.59\times 10^{-10}\ M/s$

Explanation:

According to the law of mass action:-

The rate of the reaction is directly proportional to the active concentration of the reactant which each are raised to the experimentally determined coefficients which are known as orders. The rate is determined by the slowest step in the reaction mechanics.

Order of in the mass action law is the coefficient which is raised to the active concentration of the reactants. It is experimentally determined and can be zero, positive negative or fractional.

The order of the whole reaction is the sum of the order of each reactant which is raised to its power in the rate law.

From the reaction given that:-

$P+P\rightarrown P_2$

The expression for the rate is:-

$r=k[P]^2$

Given that;- k= $6.2\times 10^{-3}$ /Ms

[P] = $1.6\times 10^{-4}$ M

Thus,

$r=6.2\times \:10^{-3}\times \:\left(1.6\times \:\:10^{-4}\right)^2\ M/s=1.59\times 10^{-10}\ M/s$

8 0

3 years ago

Convert 14.9 inches cubed into ml

ANTONII [103]

244.1673 is your answer

5 0

3 years ago

Read 2 more answers

Nick made orange juice by mixing orange juice concentrate with water. Nick's friend said that the orange juice tasted very dilut

Alenkasestr [34]

If the orange juice tasted very diluted that means that there was too much water and not enough orange juice. This being said the answer would be There is a very small amount of juice concentrate compared to water.

3 0

4 years ago

Read 2 more answers

Look at the picture

PSYCHO15rus [73]

Answer:

Explanation:

If a substance is malleable, it can be hammered flat without breaking

5 0

4 years ago

How much energy is required to raise the temperature of 3kg of iron from 20 degrees Celsius to 25 degrees Celsius

Yuri [45]

Answer:

6750 J

Explanation:

The specific heat capacity of iron is 450 J/kg/K

Quantity of heat = mcθ; where m is the mass and c is the specific heat capacity and θ is the temperature change.

Therefore;

m = 3 kg, c = 450 J/kg/K and θ = 5°C

Quantity of heat = 3 × 450 × 5

<u>= 6150 Joules</u>

5 0

3 years ago