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Law Incorporation [45]
3 years ago
13

Convert .5km to inches

Chemistry
2 answers:
olasank [31]3 years ago
8 0

Answer:

196,850.39370078

Explanation:

I simply put it in a conversion calculator:)

myrzilka [38]3 years ago
4 0

Answer:

196850.39370079 in

Explanation:

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Which three items below represent compounds?
irina1246 [14]

Answer:

Bases

NaCl

Acids

Explanation:

because compound consist of many atoms joined together.

5 0
2 years ago
Read 2 more answers
The freezing point of pure chloroform is -63.5°C, and its freezing point depression constant is 4.07°C•kg/mol. If the freezing p
Nady [450]

Answer:

-20.22

Explanation:

4 0
3 years ago
the heat of fusion of acetone is 5.7 kJ/mol. Calculate to two significant figures the entropy change when 6.3 mol of acetone mel
shtirl [24]

<u>Answer:</u> The entropy change of the process is 2.0\times 10^2J/K

<u>Explanation:</u>

To calculate the entropy change for different phase at same temperature, we use the equation:

\Delta S=n\times \frac{\Delta H_{f}}{T}

where,  

\Delta S = Entropy change

n = moles of acetone = 6.3 moles

\Delta H_{f} = enthalpy of fusion = 5.7 kJ/mol = 5700 J/mol    (Conversion factor:  1 kJ = 1000 J)

T = temperature of the system = -94.7^oC=[273-94.7]=178.3K

Putting values in above equation, we get:

\Delta S=\frac{6.3mol\times 5700J/mol}{178.3K}\\\\\Delta S=201.4J/K=2.0\times 10^2J/K

Hence, the entropy change of the process is 2.0\times 10^2J/K

4 0
3 years ago
12 Significant Figures in Addition and
Pavlova-9 [17]

Answer: 85.6

Explanation:

8 0
3 years ago
Which statement best expresses Newton's first law of motion? Group of answer choices Objects are constantly speeding up or slowi
nadezda [96]

Answer:

All objects resist changes to their states of motion.  

Explanation:

Sir Issac Newton was an English physicist, mathematician, astronomer and a well known author. Besides, he was a great scientist. Newton discovered many scientific phenomenon and scientific theories in nature.

The most important and famous discoveries of Newton is the Newton's laws of motion. Newtons stated three laws of motion, namely, Newtons 1st law of motion, Newton's 2nd laws of motion and Newton's 3rd law of motion.

According to Newtons's 1st law of motion : A body continues to be in the state of motion or in the state of rest until and unless an external force is applied to it. In other words, all bodies resists changes to the states of their motion or rest.

7 0
3 years ago
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