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alina1380 [7]
3 years ago
12

Which of these would have the largest volume??

Chemistry
1 answer:
DerKrebs [107]3 years ago
8 0
Yea, i think it's a shopping mall
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An atom has 16 protons and 17 neutrons. What is the chemical symbol for the atom? Consult the periodic table.
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<span>An atom has 16 protons and 17 neutrons. What is the chemical symbol for the atom? Consult the periodic table.
Question 8 options:

A.33Cl  This would be correct.

B.32S

C.33S

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4 years ago
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What's the specific heat of water?
natita [175]

it is over 32 degrees Fahrenheit (freezing), and below 120 degrees Fahrenheit (boiling)

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Suppose that you lowered the temperature of a gas from 100˚C to 50 ˚C. By what factor do you change the volume of the gas?
Maru [420]

Answer:- Volume decreases by a factor of 1.15.

Solution:- At constant pressure, volume of the gas is directly proportional to the the kelvin temperature.

The equation is written as:

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where, V_1 is the volume at initial temperature T_1 and V_2 is the volume at final temperature T_2 .

Temperature must be in kelvins. So, let's convert both the temperatures to kelvin.

To convert degree C to kelvin we add 273.

So, T_1  = 100 + 273 = 373 K

T_2 = 50 + 273 = 323 K

The equation could also be written as:-

\frac{V_1}{V_2}=\frac{T_1}{T_2}

\frac{V_1}{V_2}=\frac{373}{323}

\frac{V_1}{V_2} = 1.15

From here we could say that the volume decreases by a factor of 1.15.

For example if the initial volume V_1 is 1 L then final volume V_2 will be \frac{1L}{1.15} that is 0.87 L.




4 0
3 years ago
Which selection contains elements that are NOT all in the same group?
Volgvan

Answer:

Iron, copper , calcium

Explanation:

Iron , copper and calcium are present in three different groups.

Iron is present in group eight.

Copper is present in group eleven.

Calcium is present in group two.

Sodium , potassium and rubidium are present in same group i.e. group one. These are alkali metals.

Fluorine, chlorine and bromine are present in group seventeen. These are halogens.

Argon, Krypton and xenon are present in same group i.e, group eighteen. All are these noble gases.

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5. Length times With times Hight = Volume or L*W*H=V
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