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Gnoma [55]
3 years ago
9

Caculate the kinetic energy in J of an electron moving at 6.00x 10 to the sixth power m/s.

Chemistry
1 answer:
asambeis [7]3 years ago
5 0

Answer:

1.64x10^-^1^7 J

Explanation:

Due to you know the velocity of the electron, the only thing that you need to do is used the Newtonian kinetic energy formula.  The kinetic energy is defined as the work needed by motion body of a given mass to accelerate from rest to its know velocity:

KE=1/2mv^2=[kg*(m/s)^2]=[J]

m_e_- =9.1093835x10^-^3^1 kg

KE=9.11x10^-^3^1 kg*(6.00x10^6 m/s)^2=1.64x10^-^1^7 J

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ikadub [295]

For a neutralization reaction, the value of q(heat of neutralization) is doubled when the concentration of only the acid is doubled.

A neutralization reaction is a reaction in which an acid reacts with a base to yield salt and water. Ionically, a neutralization reaction goes as follows; H^+(aq) + OH^-(aq) ------> H20(l).

The heat of neutralization (Q) of the system depends on the concentration of the solutions. Since Q is dependent on concentration, if the concentration of any of the reactants is doubled, more heat is evolved hence Q is doubled.

Learn more: brainly.com/question/10323185

4 0
2 years ago
Which of the following correctly describes a compound?
Nutka1998 [239]

A compound is a pure substance formed by the chemical combination of two or more different elements.


A compound may be splitted into simpler substances by chemical reactions, and has different properties to those of the elements that form it.


The composition of a compound is fixed: every piece of a compound has the same kind of atoms, bonded in the same way and proportion.


Some examples of compounds are H₂O, NaCl, H₂O₂, CH₃COOH. As you see, they have a chemical formula which states the kind and number of the atoms that form them.


They are different to mixtures, which are formed by two or more compounds, in a variable proportion, and can be separated by physical media. Some examples of mixtures are the solutions (e.g. NaCl dissolved in H₂O), and some solid mixtures (e.g. a mixture of marbles and sand).

3 0
3 years ago
Please help!
liberstina [14]

Answer:

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Explanation:

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8 0
2 years ago
Read 2 more answers
How do I complete this column graph of the number of conductors vs the number of insulators
Vikentia [17]

Answer:

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4 0
2 years ago
3. What is the mass of HI used to create 2.50L of a 0.48 M solution of hydroiodic acid?
Daniel [21]

Answer:

Mass = 153.48 g

Explanation:

Given data:

Volume of solution = 2.50 L

Molarity = 0.48 M

Mass required = ?

Solution:

Molarity = number of moles / volume in litter

Number of moles = Molarity × volume in litter

Number of moles = 0.48 M  × 2.50 L

Number of moles =  1.2 mol

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Mass = Number of moles × molar mass

Mass = 1.2 mol × 127.9 g/mol

Mass = 153.48 g

5 0
3 years ago
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