Chemistry, 27.09.2019 22:40, greeneashlynt

Fill in the coefficients that will balance the following reaction:
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Our coefficients should be:

NaCl: 2
CaS: 1
Na2S: 1
CaCl2: 1

Why?
NaCl and CaS are our reactants. So, in other words, with these coefficients, we have 2 Na's, 2 Cl's, 1 Ca, and 1 S. To obey the law of conservation of mass, we need to make sure that we have an equal number of each element on the PRODUCTS side as well. So, if we have 2 Na's for example, we need to have 2 on the other side as well.

So, if we use the coefficient of 1 for Na2S, that tells us we have 1 S and 2 Na's. If we look back on the other side,we have 2 Na's and 1 S. So, this part is balanced and equal on both sides.

If we use the coefficient of 1 for CaCl2, we have 1 Ca and 2 Cl's.
If we look back on the other side, after the coefficients have been placed, we have 1 Ca and 2 Cl's on the reactants side as well.

So, now that each side of the equation has the same number of each element, it is balanced and equal.

Please let me know if you have any questions, I hope I could help!

answered: Guest

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

answered: Guest

answer: $2c_5h_5+1fe\rightarrow 1fe(c_5h_5)_2$

the reaction is type of combination reaction.

explanation:

$? c_5h_5+? fe\rightarrow ? fe(c_5h_5)_2$

on the product side, there are 2 molecules of $c_5h_5$ bonded to fe which means one atom of fe are combined two molecules of $c_5h_5$ . so, balanced chemical equation becomes :

$2c_5h_5+1fe\rightarrow 1fe(c_5h_5)_2$

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

$a+b\rightarrow ab$

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