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Feliz [49]
2 years ago
10

What one is the answer?​

Chemistry
2 answers:
malfutka [58]2 years ago
6 0
X is electrons, y is protons, z is neutrons
geniusboy [140]2 years ago
5 0

Answer:

X:{ \tt{ \green{green \: particle \:» \:  }electron}} \\ Y:{ \tt{ \blue{blue \: particle \:»  \: }proton}} \\ Z:{ \tt{ \red{red \: particle \:» \:  }neutron}}

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If an atom has 8 protons how many electrons does it have?What is the atoms charge
baherus [9]
Eight. It would also have 8 neutrons aswell
8 0
3 years ago
If the moles and volume of a gas are held constant, dropping the temperature from 40 degrees Celsius to 20 degrees Celsius cause
evablogger [386]
It would cause a drop <span>but I am not sure  double check other answers </span>
8 0
3 years ago
Read 2 more answers
One of these notations represents the definition of one mole. That is
just olya [345]

Answer:

6.02*10^23

Explanation:

This is the number for one mole. Just like one dozen = 12, one mole = 6.02*10^23.

Fun fact, if you had a mole of pennies you could spend 1 million dollars every second of your life and not have even spent 1% of it by the time you die at 100 years old.

3 0
3 years ago
When 25.0 grams of solid potassium hydroxide (KOH, molar mass = 56.1 g/mol) is dissolved in 100.0 grams of water, the solution i
Maru [420]

Answer:

They gave you the equation; Cp=,

just plug everything in! You’ve seen this; I have long ago, but we had different units. Sorry, but it’s right there! Go get it!

Explanation:

4 0
3 years ago
When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced thermochemical equation.
VladimirAG [237]

The balanced thermochemical equation is

KBr ------- K + 1/2 Br2

<h3>What is thermochemical equation? </h3>

A Thermochemical Equation is defined as the balanced stoichiometric chemical equation which includes the enthalpy change, ΔH.

The chemical equation for the decomposition of potassium bromide to its constituent elements bromine ans potassium :

KBr ----- K + Br2

The balanced thermochemical equation of the decomposition of potassium bromide to its constituent elements potassium and bromide as follows

KBr ------- K + 1/2 Br2

As the heat is absorbed in this reaction therefore, heat is positive.

Thus, we concluded that the balanced thermochemical equation is

KBr ------- K + 1/2 Br2

learn more about thermochemical equation:

brainly.com/question/2733624

#SPJ4

8 0
1 year ago
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