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Bogdan [553]
3 years ago
14

Identify three sources of point-source pollution.

Chemistry
2 answers:
pav-90 [236]3 years ago
8 0
Oil spills, trash dumping, and sludge dumping are the sources of point- source pollution
klasskru [66]3 years ago
7 0
The other person is right imo!
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3 years ago
The mass of a proton is 1.673 × 10-24 g. The mass of a neutron is 1.675 × 10-24 g. The mass of the nucleus of an 56Fe atom is 9.
Leokris [45]

Answer:

1.31 X 10^ -10 joules per Fe 56 atom

Explanation:

The mass of a proton is 1.673 × 10-24 g. The mass of a neutron is 1.675 × 10-24 g. The mass of the nucleus of an 56Fe atom is 9.289 × 10-23 g. What is the nuclear binding energy (in J) for 56Fe? (c = 3.00 × 108 m/s)

some of the theoretical mass will be converted to binding energy

by Einstein's famous relativity equation

E = mc^2

where E is in joules, m is in Kgm. c is in m/sec

56Fe is element 26 so it has 26 protons and  56 -26 =30 neutrons

its theoretical nuclear mass is

(26 X 1.673 X 10^-24) + (30X1.675 X 10^-24)  =

(43.498 X 10^-24) + (50.250 X 10^-24)=

93.748 X 10^24 gm

but its actual mass is 9.289 X 10^-23 g or

92.289 X 10^-24 g

the mas defect is the theoretical mass minus the actual

1.459 X 10^-24 gm =^

1.459 X 10^-27 Kgm

c = 3.00 X 10* m/s=

so joules of binding energy = (1.459 X 10^-27) X 9 X10^16)

1.31 X 10^ -10 joules per Fe 56 atom

8 0
3 years ago
If I react 6 units of AB with 10 units of CD in the equation below, what is the limiting reactant? 3AB + 4CD --> 2AD + 6CB
irga5000 [103]

If 6 units of AB were reacted with 10 units of CD in the described equation, the limiting reactant would AB

<h3>Limiting reactants</h3>

They are reactants that determine how far a reaction can go in terms of yield.

From the equation: 3AB + 4CD --> 2AD + 6CB

The mole ratio of AB to CD is 3:4

Thus, 6 units of AB will require 8 units of CD.

But 10 units of CD were reacted with only 6 units of AB. This means that CD is in excess by 2 units while AB will limit the yield of the reaction.

More on limiting reactants can be found here: brainly.com/question/14225536

8 0
2 years ago
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