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3 years ago

6

Show whether the following solutes are soluble in each solvent, and the process of dissolution of each, and their weak bonds. (N

H4)3 PO4 in water Ag Cl in water Methane (CH4) in water Methane in gasoline (C8H18) Methyl alcohol (CH3-OH) in water

1 answer:

Alexeev081 [22]3 years ago

5 0

Answer:

I don't really understand this...

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is the following sentence true or false, in undisturb sedimentary rocks, the oldest layers are found on the bottom

Sauron [17]

Answer:

True.

Explanation:

this is because undisturbed sedimentary rocks forms in layers.

4 0

3 years ago

Calculate the mass of NaCl needed to make 40% solution from 3kg of water ? Could you explain step by step please :-)

earnstyle [38]

Ok so 40 percent of 3000 grams which is 3 kg is 1200 grams
So you would need 1.2kg or 1200 grams to make a 40% solution

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3 years ago

What type of solid is this? This solid has high melting point, does not conduct electricity, and does not dissolve in water. Met

vivado [14]

The awnser It is iconic

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3 years ago

Which of the following CANNOT be determined by looking at the spectra of a star? *

Rzqust [24]

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. <em>On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.</em>

8 0

3 years ago

For the reaction of hydrogen with iodine

fenix001 [56]

Answer:

$r_{H_2} = \frac{-1}{2} r_{HI}$

Explanation:

Hello!

In this case, considering the given chemical reaction:

$H_2(g) + I_2(g) \rightarrow 2HI(g)$

Thus, by applying the law of rate proportions, we can write:

$\frac{1}{-1} r_{H_2} = \frac{1}{-1}r_{i_2} = \frac{1}{2} r_{HI}$

Whereas the stoichiometric coefficients of reactants are negative due their disappearance and that of the product is positive due to its appearance. In such a way, when we relate the rate of disappearance of hydrogen gas to the rate of formation of hydrogen iodide, we obtain:

$r_{H_2} = \frac{-1}{2} r_{HI}$

Best regards!

8 0

2 years ago