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Aloiza [94]
3 years ago
8

What is the frequency of this wave? 1 2 3 4

Chemistry
1 answer:
Alecsey [184]3 years ago
4 0
3 is the frequency of the wave
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What is the mass of carbon dioxide formed when 36g of carbon is burnt?<br> C+O2 -------&gt;C02
Anestetic [448]

Answer:

Mass = 132 g

Explanation:

Given data:

Mass of CO₂ formed = ?

Mass of C burnt = 36 g

Solution:

Chemical equation:

C + O₂    →    CO₂

Number of moles of carbon:

Number of moles = mass/molar mass

Number of moles = 36 g/ 12 g/mol

Number of moles = 3 mol

now we will compare the moles of carbon and carbon dioxide.

                C           :        CO₂

                 1           :         1

                3           :         3

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 3 mol × 44 g/mol

Mass = 132 g

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The basic elements found in protein molecules
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3 years ago
A carbon atom is able to form four single covalent bonds because it
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 <span>has four valence electrons in its outermost energy level. 
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Why ddo all collisions between reactant molecules not lead to reaction.
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Answer:

The colliding molecules need to possess certain energy which is greater than the activation energy Ea and proper orientation.

<h3>Not all collisions result in a chemical reaction because not all collisions have the have sufficient amount of energy or have the appropriate activation energy. Nor do they all have this correct orientation. Molecules need to collide in such a way that they're oriented, so the correct bonds could break in. The correct bonds conform. And then, of course, they need to have sufficient activation energy in order to initiate the breaking of the bonds.</h3>

<h3>Hope this helps please let me know If I'm wrong.</h3>
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Is it possible for a solution to have negative pH values?
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Answer:

Yes.

Explanation:

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3 years ago
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