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jarptica [38.1K]
4 years ago
15

How do you prove law of conservation of mass??

Chemistry
1 answer:
Cerrena [4.2K]4 years ago
3 0
The Law of Conservation of Mass<span> states that </span>matter <span>can neither be created nor destroyed in a chemical reaction.</span>
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The ability of a substance to conduct electricity is called_______​
trapecia [35]

Answer:

Electrical conductivity

Explanation:

Electrical conductivity - A material's ability to conduct electricity

5 0
3 years ago
I NEED RIGHT NOW OR I GET AN F!!!!! HELP!!!!!
Oksi-84 [34.3K]

Answer:

boundary interactions: areas where plates move away from each other forming mid-ocean ridges or rift valleys.

divergent boundaries: this happens when 2 tectonic plates move away from each other. along these boundaries earthquakes and magma are common as they are rise from the mantle to the sruface making new oceanic crust.

convergent boundaries: this is an area on earth where 2 or more lithospheric plates collide. they will slide under one another creating a subduction.

transform boundaries:  transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. It ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.

Explanation:

lithosperic means the solid outer part of the earth.

hope this helps and good luck!  :) <3

4 0
3 years ago
Which of the following equations is balanced correctly and has the correct products for the reactants RbNO3 and BeF2?
Pavel [41]

Answer:

2RbNO₃ + BeF₂ → Be(NO₃)₂ + 2RbF, because Be keeps a 2+ charge throughout the reaction

Explanation:

2RbNO₃ + BeF₂ → Be(NO₃)₂ + 2RbF, because Be keeps a 2+ charge throughout the reaction

Rb is a +1 cation, NO3 is a -1 anion, Be is a +2 cation and F is a -1 anion.

In writing an ionic compound the charge of the cation becomes the subscript of the anion and the charge of the anion becomes the subscript of the cation.  

So the ionic compound formed between Be2+ and F- is BeF2. The ionic compound formed between Be2+ and NO3- is Be(NO₃)₂.  

As there are two NO₃ on the product side it is balanced by writing a 2 coefficient before RbNO₃ on the reactant side.  

And as there are two F on the reactant side it is balanced by writing a 2 coefficient before RbF on the product side.  

5 0
3 years ago
What is the balanced chemical reaction when Aluminium reacts with NaOH to produce NaAlO2 and H2 gas?​
8090 [49]

Answer:

2NaOH + 2Al +2H2O = 2NaAlO2 +3H

Explanation:

Aluminum is an amphoteric element it reacts with both bases and acids to form a salt and hydrogen gas.The reaction is highly exothermic.

5 0
3 years ago
Which of the following pairs of elements could react to form an ionic compound? Check all that apply.
KIM [24]

Following are the pair of elements that result in an ionic compound

  • Ca and Cl,
  • S and K,

Option A and B

<u>Explanation:</u>

  • Ionic compounds are defined as the compound that consists of ions held by two atoms of differently charged ions.
  • These compounds have a positive charge of ions called cations and a negatively charged element is anions.
  • In the above options, we shall say that the atoms such as Ca and K both result in cations as they release an electron to become a positive ion.
  • Also, Cl and S both result in anions as they attract more electron to form negative ions.
  • These positive and negative ion together results in an ionic compound.
8 0
3 years ago
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