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monitta
3 years ago
13

What was the model of an atom like according to the Greeks?

Chemistry
1 answer:
mel-nik [20]3 years ago
4 0

Answer:

The idea that all matter is made up of tiny, invisible particles, or atoms, is believed to have originated from the Greek Philosopher Leucippus of Miletus and his student Democritus. The word atom comes from the Greek word atomos, which means "invisible"

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PLEASE HELP ME WITH THIS IT'S DUE TOMORROW
Bond [772]

Answer:

Both:

-They are both made up of cells embedded in an extracellular matrix. It is the nature of the matrix that defines the properties of these connective tissues.

Cartilage:

-Cartilage is thin, avascular, flexible and resistant to compressive forces.

-Cartilages are soft and flexible components present in ear, nose and joints.

Bone marrow:

-Bone is highly vascularised, and its calcified matrix makes it very strong.

-Bones are hard and tough which gives the structural framework of the skeleton in the body.

7 0
3 years ago
If a patient is injected with 0.500 L of IV saline, what is the volume in quarts? (Given: 1 qt = 946 mL)
Andrei [34K]

Answer:

0.529 qts

Explanation:

5 0
3 years ago
Read 2 more answers
Today, there are ____ GMO crops currently produced in the US.
babymother [125]

Answer: I think that is 55

Explanation: I hope I help

8 0
3 years ago
Read 2 more answers
95. Using the standard enthalpy of formation data in Appendix G, calculate the bond energy of the carbon-sulfur double bond in C
prohojiy [21]

Answer:

+523 kJ.

Explanation:

The following data will be used to calculate the average C-S bond energy in CS2(l).

S(s) ---> S(g)

ΔH = 223 kJ/mol

C(s) ---> C(g)

ΔH = 715 kJ/mol

Enthalpy of formation of CS2(l)

ΔH = 88 kJ/mol

CS2(l) ---> CS2(g)

ΔH = 27 kJ/mol

CS2(g) --> C(g) + 2S(g)

So we must construct it stepwise.

1: C(s) ---> C(g) ΔH = 715 kJ

2: 2S(s) ---> 2S(g) ΔH = 446 kJ

adding 1 + 2 = 3

ΔH = 715 + 446

= 1161 kJ

3: C(s) + 2S(s) --> C(g) + 2S(g) ΔH = 1161 kJ

4: C(s) + 2S(s) --> CS2(l) ΔH = 88 kJ

adding (reversed 3) from 4 = 5

ΔH = -1161 + 88

= -1073 kJ

5: C(g) + 2S(g) --> CS2(l) ΔH = -1073 kJ

6: CS2(l) ---> CS2(g) ΔH = 27 kJ

adding 5 + 6 = 7

ΔH = -1073 + 27

= -1046 kJ

7. C(g) + 2S(g) --> CS2(g) ΔH = -1046 kJ

Reverse and divide by 2 for C-S bond enthalpy

= -(-1046)/2

= +523 kJ.

8 0
3 years ago
Efforts to restore wetlands and forests along the coast will most likely _______.
Nataly [62]

The question is incomplete, the complete question is;

Efforts to restore wetlands and forests along the coast will most likely _______. a. benefit the economy by providing jobs b. improve wildlife populations c. reduce soil erosion and flooding in coastal areas d. all of the above

Answer:

ALL OF THE ABOVE.

Explanation:

If wetlands and forests are restored, timber workers will be in business and farmers who cultivate crops on wetlands will have jobs. Thus restoring forests and wetlands could create new jobs.

Also, with the restoration of forests, wild life population will improve because their habitat has been restored. Similarly, the forest trees will contribute to curbing menaces caused by erosion and flooding in coastal areas since trees naturally reduces the speed of surface runoff and wind.

7 0
3 years ago
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