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emmasim [6.3K]
3 years ago
8

Is it true that protons,neutrons and electrons differ from each other based on their locations in an atom but they have the same

electrical changes
Chemistry
1 answer:
Dahasolnce [82]3 years ago
7 0
That’s false, protons have a positive charge, electron have a negative charge, and neutrons are just neutral. All of them have different charges.
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If you have 8.0 x 1025 molecules of water, how many moles is this?
Brilliant_brown [7]

Answer:

4.43

Explanation:

7 0
3 years ago
4. When 732 grams of water was heated, it absorbed 1962 Joules of heat. The original temperature of the water was 45°C. What was
SCORPION-xisa [38]

Answer:

T_{final} =45.64C=final temperature

Explanation:

In the question specific heat of water is not given but we should know the value of that and it 4.18Jg∘C

Specific heat means how much heat is required to increase the temperature of 1 gram of substance that substance by 1∘C .

Equation between heat lost or gain and the change in temperature.

q=m⋅c⋅ΔT , where

q - the amount of heat

m - the mass of the sample

c - specific heat  of sample

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put all the given value into this ,

q=m\times c \times  \Delta  T

\Delta T=\frac{q}{mc} =\frac{1962}{732 \times 4.18}

\Delta T= 0.64C

T_{final} -T_{initial} =0.64C

T_{final} =45.64C=final temperature.

8 0
4 years ago
The nh2cl model consists of balls and sticks. the electrons in the molecule are paired, and each stick represents a valence elec
tangare [24]

Valence electrons in NH2Cl:

=1(5)*2(1)*1(7)

=14

So there are 14 valence electrons in NH2Cl

As each stick represents an valence electron pair.

And there are 14 valence electrons, so there can be 7 valence electron pairs.

And for 7 valence electron pairs, 7 sticks needed.

5 0
3 years ago
How many lead atoms in Pb(OH) 4 ?
OlgaM077 [116]

4 in hydrogen 4 in oxygen

Explanation:

hope this helps

5 0
3 years ago
How do you figure out the # of<br> neutrons?
Colt1911 [192]

Answer:

Subtracting the number of protons from the atomic mass.

5 0
3 years ago
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