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ch4aika [34]
3 years ago
14

There are three statements of matter

Chemistry
1 answer:
Tamiku [17]3 years ago
8 0
Solid, liquid and gas
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245 g water sample initially at at 32 oC absorbs 17 kcal of heat. What is the final temperature of water?
steposvetlana [31]

Answer:62.66°C or 235.66K

Explanation:Q=McpT, the energy was given in calories so you first convert to Joules by multiplying the value in calories by 4.184J.

17*4.184=71.128kJ.

71.128kJ=mcpT

71.128kJ=245*4.187*(T-Tm)

Tm is the final temperature of the mixture. The T is the temperature given which should be converted to Kelvin by adding 273...T=32+273=305K.

71128J=245*4.187*(305-Tm)

71128=312873.575-1025.815Tm

1025.815Tm=312873.575-71128

1025.815Tm=241745.58

Tm=241745.58/1025.815

Tm=235.66K

4 0
3 years ago
The community of a pond is made up of all the...
madam [21]
The surrounding ecosystem in and around the water
3 0
3 years ago
Which compound in the picture has a central atom with four outside atoms and has at least one nonpolar bond.
hodyreva [135]

Answer:

The answer is:

B

Explanation:

The compound in Option B is Methane.

Methane is known to be a compound which has two elements, carbon and hydrogen. It has a central atom which is surrounded by four hydrogen atoms. It's chemical formula is CH4.

Methane's outer atoms are dipoles and are in the same direction. This makes the overall molecule non-polar. The compound itself has non-polar bonds and it is non-polar itself.

4 0
3 years ago
What is the standard value for T in the common form of the Nernst equation?
LuckyWell [14K]

C.  

52° Celsius

Hope this helped!

6 0
3 years ago
nitrogen is made up of two isotopes N-14 and N15. given nitrogen’s atomic weight of 14.007 what is the percent abundance of each
Oduvanchick [21]
The answer is n14 if it
8 0
3 years ago
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