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HACTEHA [7]
3 years ago
13

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

Chemistry
2 answers:
Flauer [41]3 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]3 years ago
6 0
The atomic number is the numbers of protons

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2NaCl → 2Na +Cl2<br> What reaction is this
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Answer:

Decomposition reaction

Explanation:

A single reactant breaking down to form 2 or more products is decomposition

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2 years ago
The beakers in the picture above are labeled according to the ionic solutions they contain. What metal or metals could replace c
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In such a reaction, metal higher up in the activity series replaces another one due to their position.

To known the metal or metals that will replace the given copper, we need to reference the activity series of metals.

Every metal higher than copper in the series will displace copper from the solution.

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8 0
3 years ago
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madam [21]

Answer:

See explanation

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8 0
3 years ago
A sample of an ideal gas has a volume of 2.31 l at 287 k and 1.10 atm. calculate the pressure when the volume is 1.45 l and the
balu736 [363]
Hello!

The pressure of the Ideal Gas when the volume is 1,45 L and the temperature is 298 K is 1,82 atm.

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Now we match n*R for the initial conditions (1) and the final ones (2), clearing the equation for P₂

\frac{P_1*V_1}{T_1}= \frac{P_2*V_2}{T_2} \\ \\ P_2= \frac{P_1*V_1*T_2}{T_1*V_2}= \frac{1,10 atm*2,31 L *298 K}{287K*1,45 L}=1,82 atm

Have a nice day!

7 0
3 years ago
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bixtya [17]

Answer:3.5

Explanation:

6 0
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