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3 years ago

1

Chemistry

1 answer:

k0ka [10]3 years ago

7 0

Answer:

Chemical reactions takes place

Explanation:

Chemical energy stored in bonds of chemical compound are released when chemical reactions takes place.

Chemical energy is a form of potential energy that is found in chemical bonds.

When chemical reactions occur, bonds are broken and formed again.
The process of breaking and forming new bonds releases chemical energy.
In this manner most chemical reactions are often accompanied by energy changes
The energy changes is due to the formation of new bonds.

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Being able to curl your tongue is a recessive trait (t), while not being able to curl your tongue is a dominant trait (T).

gizmo_the_mogwai [7]

Should be this. you can’t have any of these listed below since they both rain recessive traits. recessive traits aren’t able to be created in the dihybrid. btw i did the simplified grid since they produce the same gametes. i could be wrong though (:

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3 years ago

If 34.5 g of Copper reacts with 70.2 g of silver nitrate, according to the following

Vlada [557]

Answer:

44,55 can be produced.

Explanation:

First, we balanced the equation

1Cu + 2AgNO3 → 1Cu(NO3)2 + Ag

Then, we find the moles of each reagent

$mol Cu = \frac{34,5g}{63,55\frac{g}{mol} } = 0,543 mol\\$

$mol AgNO3 = \frac{70,2g}{169,87\frac{g}{mol} } = 0,413 mol\\$

Now, we find the limiting reagent from the quantities of product that can be formed from each reagent

$mol AgNO3= 0,543mol Cu . \frac{2 mol AgNo3}{1 mol Cu} = 1,086 mol$

$mol Cu= 0,413 mol AgNO3 . \frac{1 mol Cu}{2 mol AgNO3} = 0,206 mol$

1,086 moles of AgNO3 is necessary for each mole of Cu since we have 0.413 moles of Ag(NO3), the nitrate is the limiting reagent

the value of the limiting reagent determines the amount of product that is generated

∴ 0,413 mol of Ag can be produced

Ag = $0,413 mol . 107,87\frac{g}{mol}$ = 44,55g

Ag≈ 44,6g

4 0

4 years ago

Read 2 more answers

How many moles of NaCl are equivalent to 15.6<br> grams of NaCl

NeX [460]

One mole of NaCl has a mass of approximately 58.5 grams. This gives it a conversion factor of 1/58.5

Hope This Helped

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4 years ago

Pick the correct one and why?

nadezda [96]

Answer:

I agree with Lawana's idea because not all of the substances react with each other to form a new substances.

hope this helps you

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3 years ago

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just olya [345]

Answer:

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3 years ago