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Strike441 [17]
3 years ago
14

The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there

Biology
1 answer:
NISA [10]3 years ago
3 0
19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.
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In terms of energy, what is the difference between glucose and ATP? 
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Answer:

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An apartment complex has a floor plan with the dimensions shown. To effectively air condition a room, 20BTU's (British Thermal U
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The dimensions of the room is not given. Lets assume a value and calculate BTU accordingly.

Answer and Explanation:

BTU, or British Thermal Unit, is defined as the amount of heat required to raise the temperature of 1 pound of water by 1° F.

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Calculation:

Lets assume that a room is 10 feet wide and 14 feet long.

  • Step 1

Calculate the size of the room by multiplying the height of the room with its width:

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  • Step 2

Then multiply the size of the room that you obtained in step 1 with 20 BTU per square foot, in order to get the minimum BTU's required for AC to cool a room,

140 × 20= 2800

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Where is the best place to find information about the hazards that are associated with a compound
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-Rosie
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Explanation:

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