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liraira [26]
3 years ago
11

A/An _______ indicates the ratio of atoms in a molecule.

Chemistry
1 answer:
Aloiza [94]3 years ago
7 0

Answer:

A <em><u>molecular formula</u></em> indicates the ratio of atoms in a molecule.

Explanation:

A molecular formula or chemical formula is a representation or indication of the number of atoms in a particular compound or molecule have in a specific specific proportion.

These are represented by the symbols of elements, numbers of atoms present and sometime other symbols. For example in water molecule there is one atom of oxygen and two hydrogen atoms.

Thus, the correct answer is : <em><u>molecular formula</u></em>

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The balanced half-reaction in which sulfate ion is reduced to sulfite ion is a __________ process.
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Answer:

Two-electron

Explanation:

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3 years ago
A cord is used to vertically lower an initially stationary block of mass m kg at a constant downward acceleration of g/4. the bl
Natali5045456 [20]

(a) We know that work is the product of Force and Distance so: (in this case Distance is negative since going down so –d)

work = force * distance

work = M * (g - g/4) * -d

work = -3Mgd/4 <span>

(b) The work by the weight of the block is simply:</span>

work = Mgd <span>

(c) The kinetic energy is simply equivalent to the net work, therefore:</span>

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Plugging in the value of KE from c:

v = √(2*Mgd / 4M)

<span>v = √(gd / 2) </span>

5 0
2 years ago
Plz help me with this:
In-s [12.5K]

Answer:

1) H 1s^1

2) [Ar] 3d⁸ 4s²

3) [He] 2s2 2p3

4) [Kr] 4d10 5s2 5p5

5) [Ar] 4s² and [Ar] 4s²

6) [He] 2s2 2p2

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Explanation:

7 0
3 years ago
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Rate of the above reaction is affected by the Temperature.

As the temperature increases , the rate of the reaction increases. This happens because at higher temperature, the collisions between reacting species are more which result in formation of product in less time. This increases the rate of reaction.

We have been given equal volumes of water for each beaker. But the temperature of beaker c is 80°C which is the highest temperature. That means the reaction in beaker c is fastest.

Whereas beaker a is at lowest temperature (30°C) , therefore the reaction in beaker a would be slowest .

Therefore the answer that correctly orders the reaction rates from fastest to slowest reaction is beaker c > beaker b > beaker a

8 0
3 years ago
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QveST [7]

Answer:

<h2>#1</h2><h3>Which process is used for preparation of Sodium Carbonate? </h3>

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6 0
1 year ago
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