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-BARSIC- [3]
4 years ago
10

the atomic nubmer of an element is the total number of which particles in the nucleus?protons,neutrons,electrons,protons and ele

ctrons​
Chemistry
1 answer:
erma4kov [3.2K]4 years ago
3 0

The atomic number is the total numbers of protons in an element

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weqwewe [10]

Answer:

209.3 Joules require to raise the temperature from 10 °C to 15 °C.

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m × c × ΔT

Given data:

mass of water = 10 g

initial temperature T1= 10 °C

final temperature T2=  15 °C

temperature change =ΔT= T2-T1 = 15°C - 10°C = 5 °C

Energy or joules added to increase the temperature Q = ?

Solution:

We know that specific heat of water is 4.186 J/g .°C

Q = m × c × ΔT

Q = 10 g × 4.186 J/g .°C × 5 °C

Q = 209.3 J

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This would be C. nucleus
4 0
3 years ago
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ladessa [460]

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2 years ago
Draw the correct structural formula for the following compounds:
Anvisha [2.4K]

Answer:

Explanation:

a) H3C-CH=CH-CH2-CH3

b)     CH3                     CH3

         |                           |

CH3-C-     CH- CH2-   CH-CH3

        |         |  

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c)                 C2H5

                    |

CH3-C=CH-CH-CH2-CH-CH3

         |                          |

        CH3                    CH3

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4 years ago
How many molecules are in a drop of water weighing 0.05 g?
Scilla [17]

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0.05 g of H2O contain molecules

7 0
3 years ago
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