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HACTEHA [7]
4 years ago
13

How is atomic number and mass related to protons, neutrons, & electrons?

Chemistry
2 answers:
Flauer [41]4 years ago
8 0
Atomic number . . .
-- the number of protons in an atom
-- the number of electrons in a neutral atom
-- neutrons are not involved

Atomic mass . . .
-- roughly but not exactly the total of (protons + neutrons) in an atom
-- electrons are not involved
artcher [175]4 years ago
6 0
The atomic number is the numbers of protons

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1 kg of water (specific heat = 4184 J/(kg K)) is heated from freezing (0°C) to boiling (100°C). What is the change in thermal en
Andrews [41]

Answer: 1560632 joules

Explanation:

The change in thermal energy (Q) required to heat ice depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Given that:

Q = ?

Mass of frozen water (ice) = 1kg

C = 4184 J/(kg K)

Φ = (Final temperature - Initial temperature)

= 100°C - 0°C = 100°C

Convert 100°C to Kelvin

(100°C + 273) = 373K

Then, Q = MCΦ

Q = 1kg x 4184 J/(kg K) x 373K

Q = 1560632 joules

Thus, the change in thermal energy is 1560632 joules

5 0
4 years ago
Diamond and graphitr are made of what
Lana71 [14]

Diamond and graphite are made of carbon.  So is most of charcoal.


3 0
3 years ago
Read 2 more answers
Explain whether areas B and D show the same season.
torisob [31]
They do not show the same season. one is faced a different part of the sun
4 0
3 years ago
How many grams of CO2 are used when 6.0 g of O2 are produced? Express your answer with the appropriate units.
Ipatiy [6.2K]

Answer:

that is why co2 is in the power of 2ik

8 0
4 years ago
What is the speed of a man walking for 30 meters and he walked for 5 seconds ​
aliya0001 [1]

Answer:

<h2>6 m/s</h2>

Explanation:

The speed of the man can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{30}{5}  \\

We have the final answer as

<h3>6 m/s</h3>

Hope this helps you

8 0
3 years ago
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