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SashulF [63]
3 years ago
15

How to seperate sand and water

Chemistry
2 answers:
strojnjashka [21]3 years ago
8 0

Answer: Some kind of strainer system

Explanation:

ohaa [14]3 years ago
3 0
Let the water evaporate
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How are industrial and agricultural pollution similar?
Norma-Jean [14]

Answer:

Both of them are polluting the environment. Industrial pollution is the pollution caused from industries and it can be in different forms such as water waster or air pollution. Agricultural pollution is caused from plants or crops that are grown by the farmers. For example, pesticides that may ruin the soil and is dangerous for our environment.

Explanation:

6 0
3 years ago
Sodium chloride, NaCl forms in this reaction between sodium and chlorine. 2Na(s) + Cl2(g) → 2NaCl(s) How many moles of NaCl resu
choli [55]

Answer: 7.8 moles of NaCl result from the complete reaction of 3.9 mol of Cl_2

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}    

\text{Moles of} Cl_2=3.9mol

2Na(s)+Cl_2(g)\rightarrow 2NaCl(s)

As Na is the excess reagent, Cl_2 is the limiting reagent as it limits the formation of product.

According to stoichiometry :

1 mole of Cl_2 gives = 2 moles of NaCl

Thus 3.9 moles of Cl_2 will give=\frac{2}1}\times 3.9=7.8moles  of NaCl

7.8 moles of NaCl result from the complete reaction of 3.9 mol of Cl_2

5 0
3 years ago
Hydrates take the form: compound·nh2o. an unknown hydrate has a molar mass of 190. g/mol. if the anhydrate has a molar mass of 1
gulaghasi [49]
Hi good luck
Final exams are near
So the ans is I don't know
3 0
3 years ago
It is so hard i do not get it
kicyunya [14]
Because your doctor gave it to you for a reason. THey gave you medicine to help you and they told you to take those pills so you should listen.

hope this helps
3 0
3 years ago
Write word equation followed by chemical equation for the following reactions:a) iron with copper (ll) sulphate b) copper with s
8_murik_8 [283]

Answer:

Iron + copper(II) sulphate → iron sulphate + copper

Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)

copper + silver nitrate → copper nitrate + silver

Cu (s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag (s)

3 0
3 years ago
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