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mars1129 [50]
3 years ago
12

Which two kinds of energy are associated with flames?

Chemistry
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

Type= Thermal Energy , Motion = Random motion of microscopic particles of matter , Example = Heat, Fire

Type= Electrical energy, Motion = Bluk flow of chorges , Example = Household current , AC and DC circuits.

Explanation:

keep it up!!!!

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When the cell splits, they have a nucleus with complete genetic material for the new daughter cells. What is this genetic materi
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Chromosomes is the correct answer darlin
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3 years ago
You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. Y
lbvjy [14]

Answer: 2.58 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = ?

t = age of sample  = 6 days

a = initial amount of the reactant  =  1 g

a - x = amount left after decay process   = 0.2 g

a) to find the rate constant

6=\frac{2.303}{k}\log\frac{1.0}{0.2}

k=\frac{2.303}{6}\log\frac{1.0}{0.2}

k=0.268days^{-1}

b) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

t_{\frac{1}{2}}=\frac{0.693}{0.268}=2.58days

The half life is 2.58 days

3 0
3 years ago
Draw a mechanism for this reaction. 5-hydroxypentanoic acid forms 2-oxanone in the presence of acid. draw all missing reactants
Licemer1 [7]

Answer: -

The first step involves protonation of the carbonyl oxygen.

After protonation, the Alcohol oxygen now attacks the carbon of the carbonyl.

Thus a six membered ring is formed with 5 carbon atoms and 1 oxygen atom. The 1st position carbon atom has 2 OH groups.

One of these gets again protonated.

This leaves as water. With the loss of the H+, there results a carbonyl at 1 position.

Thus 5-hydroxypentanoic acid forms a lactone or 2-oxanone in presence of acid.

3 0
3 years ago
Why is mercury the only metal to have been used in thermometers
MArishka [77]
I think because its the only one to be liquid  at  normal temperatures.
6 0
4 years ago
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