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finlep [7]
3 years ago
12

New elements can be made by changing the number of neutrons in an atom. True False

Chemistry
2 answers:
andrey2020 [161]3 years ago
4 0
False.
New elements can't be made by changing netrons of a particular element. This would result in the creation of isotopes of that particular element. We can't consider isotopes as different elements.


If you found my answer good, please mark it as the Brainliest Answer
Feliz [49]3 years ago
4 0
The answer should be false 
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Two students are working together to build two models. Both models will represent the molecular structure of sodium bicarbonate,
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Answer:

Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

<em>Note: Since no specific color was stated for oxygen atoms, the answer assigns blue colored jellybeans to represent oxygen atoms.J</em>

Explanation:

Sodium bicarbonate, NaHCO₃ is a compound composed of one atom of sodium, one atom of hydrogen, one atom of carbon and three atoms of oxygen.

Since red jellybeans represent sodium atoms, white jellybeans represent hydrogen atoms, black jellybeans represent carbon atoms and blue jellybeans represent oxygen atoms, each of the two students will require the following number of each jellybean for their model of sodium carbonate: One red jellybean, one white jellybean, one black jellybean and three blue jellybeans.

Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

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A problem with receptors
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What volume (in L) of carbon dioxide will be produced from the reaction of 13.6 L of nitrogen monoxide?
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Answer: 13.6

Explanation:

7 0
3 years ago
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True or False? Not all compounds will dissolve in water.
In-s [12.5K]

Answer:

False

Explanation:

Polar molecules and ionic compounds dissolve in water, not nonpolar molecules

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3 years ago
For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. The reaction is endothermic. What do yo
jeyben [28]

Answer:

The correct answer is : 'the concatenation of NO will increase'.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

If the temperature is increased, so according to the Le-Chatlier's principle , the equilibrium will shift in the direction where increase in temperature occurs.

2NOBr(g)\rightleftharpoons 2NO(g) + Br_2(g)

As, this is an endothermic reaction, increasing temperature will add more heat to the system which move equilibrium in the forward reaction with decrease in temperature. Hence, the equilibrium will shift in the right direction.

So, the concatenation of NO will increase.

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