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konstantin123 [22]
3 years ago
14

How does the density or aluminum compare to the density of gold

Chemistry
1 answer:
Alexxx [7]3 years ago
5 0
Gold has a very high density of about 19.32g/cm^3 while Aluminum has a low density of 2.7 gm/cm^3 which means gold can pack more amount of matter in a comparatively small space as compared to Aluminum.
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A student conducting the iodine clock experiment accidentally makes an s2o32- stock solution that is too concentrated. how will
cupoosta [38]
Adding (S2O3)2- would affect the reaction mechanism that involves this ion. From the reaction mechanism given above, the equilibrium of step 2 would be affected. Adding the stock solution of (S2O3)2- would shift the equilibrium to the right thus making more products of the said mechanism. Also, the reaction rate of this step would occur faster than the original rate. This is based on Le Chatelier's Prinicple which states that a corresponding change would happen to the equilibrium of a reaction when pressure, concentration of the substances or temperature is changed. So, that after the addition, a color change would appear immediately because I3- would be removed slowly from solution, and would therefore be able to react with starch. 

8 0
3 years ago
Please help this is due today! 5-11-2021
Licemer1 [7]

Answer:

- The chemical reaction is not balanced. There is two oxygens on the reactant's side while there's only one oxygen on the products side.

- I would not say it's following the law of conservation of mass as it's not a balanced equation.

- To balance this equation, you would need to add the coefficient of '2' to Magnesium (Mg) on the reactants side, and add the coefficient of '2' to the products side.  This would make it so that there's 2 Mg's and 2 O's on both the reactant's side and products side.

edit: I hope this helped you in some way. ^^

8 0
2 years ago
"What volume of" a 0.300 M BaF2 "solution is needed to prepare" 240.0 mL of a 0.100 M F- solution
zhannawk [14.2K]
Use M x V = M' x V'

0.300 x V = 0.100 x 250

V = .......... ml
6 0
3 years ago
Complete and balance the following symbol equation, and add state symbols
erastovalidia [21]

Answer:

2NaOH + H2So4 》Na2So4+ 2H2O

Explanation:

SODIUM HYDROXIDE, 2NaOH IS (aq)

FULFURIC ACID, H2So4 IS (aq)

SODIUM SULFATE, Na2So4 IS (aq)

WATER,2H20 IS (l)

5 0
3 years ago
A student melts 50.0 grams of ice using 16650 J of energy. What is the heat of fusion of ice?
Shkiper50 [21]
Heat fusion is the amount of energy required to convert one mole of ice into water, 16650J is per 50g so if we divide 16650 by 50 we find it per gram: 16650/50 = 333J/g or 0.33KJ/g

hope that helps :)
6 0
3 years ago
Read 2 more answers
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