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Alik [6]
3 years ago
10

What does the law of conservation of mass state?

Chemistry
2 answers:
katrin [286]3 years ago
8 0

Answer:

matter cannot be created nor destroyed

Explanation:

natulia [17]3 years ago
7 0

Answer:

Mass cannot be created nor destroyed in a chemical reaction

Explanation:

The law of conservation of mass was stated by Antoine lavoisier in 18th century which states that for a isolated system the mass can neither be created nor be destroyed in a chemical reaction. It means that the total mass of the reactants is equal to the total mass of the product formed i.e there is no change in the mass of the reactants even after the reaction which is stated by the law of the conservation of the mass.

The mass of the elements are not created or destroyed but their form is changed to another form of atoms or molecules with conserved mass.  

For a balanced chemical equation of the formation of the water, 4 grams of hydrogen combines with 32 grams of the oxygen to give 36 grams of the water where the sum of the mass of the reactant is equals to the mass of the product.

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When atoms gain electrons, they can become larger, because the addition of an electron increases electrostatic repulsion.
astra-53 [7]

Answer:True

Explanation: An anion has a larger radius than a neutral atom because it gains valence electrons. There are added electron/electron repulsions in the valence shell that expand the size of the electron cloud, which results in a larger radius for the anion.

hit the crown for me pls :)

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6 0
2 years ago
There are 31.1 grams (g) in 1 troy ounce (ozt). How many ozt of gold are extracted from 1 short ton of average Nevada ore
devlian [24]

This problem is providing us with the mass equivalent to one troy ounce. Thus, the troy ounces of gold in one short ton of average Nevada ore is required and found to be the 0.103 otz according to the following dimensional analysis.

<h3>Dimensional analysis</h3>

In chemistry, a raft of problems do not always provide an equation in order to be solved yet dimensional analysis can be applied, so as to obtain the desired amount in the required units.

Thus, since this problem asks for try ounces in an average Nevada ore,  which has 3.2 grams of gold per short ton of ore, one can solve the following setup in order to obtain the required answer in otz:

\frac{3.2gAu}{1short-ton}*1short-ton*\frac{1otz}{31.1g} \\

Where the short tons are cancelled out as well as the grams, in order to obtain:

0.103 otz

Learn more about dimensional analysis: brainly.com/question/10874167

4 0
2 years ago
Calculate the value deltaG°​
atroni [7]

Answer:

ΔG=ΔG0+RTlnQ where Q is the ratio of concentrations (or activities) of the products divided by the reactants. Under standard conditions Q=1 and ΔG=ΔG0 . Under equilibrium conditions, Q=K and ΔG=0 so ΔG0=−RTlnK . Then calculate the ΔH and ΔS for the reaction and the rest of the procedure is unchanged.

Explanation:

4 0
3 years ago
Asap! first to answer correctly gets 10 pts plus brainliest! :)
olga_2 [115]

Answer:

c

Explanation:

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6 0
3 years ago
Chemistry to make tomato soup, you add one can of water to the condensed soup. why is this dilution?
Nastasia [14]
Dilution refers to decreasing the ratio of total solution to the reference solution by the addition of other liquids. By adding water to tomato soup, the balance of “tomato soup” molecules decreases from 100% tomato soup, to eventually 1:1 TS and Water (50%), and so on. Chemically, you can observe this as decreasing the concentration of tomato soup in this solution.
8 0
3 years ago
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