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solmaris [256]
3 years ago
7

Please help me

Chemistry
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

B Nematoda

Explanation:

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Show your work with good use of units, rounding, and significant figures. [Hint: it is good practice to show the value of your a
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:?Answer:

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Explanation:

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7 0
3 years ago
A mixture of 15.0 g of aluminum sulfide and 10.0 g of water reacts according to the following equation:
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(a) The mass of hydrogen sulfide produced in the reaction is 9.44 g.

(b) Water is the limiting reagent in the given reaction.

<h3>Mass of hydrogen sulfide produced</h3>

Al2S3 + 6H2O ---> 2Al(OH)3 + 3H2S

mass of water in the reaction = 6(18 g/mol) = 108 g/mol

mass of hydrogen sulfide in the reaction: = 3(34) = 102 g/mol

108 g/mol of H2O ------- > 102 g/mol of H2S

10 of H2O -----------> ?

= 9.44 g

Aluminum sulfide will be completely consumed by the reaction while some fraction of water will remain. Thus, water is the limiting reagent in the given reaction.

Learn more about limiting reagents here: brainly.com/question/26905271

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8 0
2 years ago
When an atom makes a transition from a higher energy level to a lower one, a photon is released. What is the wavelength of the p
ZanzabumX [31]

Answer:

Depends on different states.

Explanation:

The wavelength of the photon that is emitted from the atom during the transition depends on the transition from different states. If the photon is emitted from n=4 state to n=3 state, the wavelength of photon is 1875 while on the other hand, if the photon is emitted from n=5 state to n=3 state, the wavelength of photon is 1282. If the photon is emitted from n=3 state to n=2 state, the wavelength of photon is 656.

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3 years ago
Which group on the Periodic Table has elements with atoms that tend not to bond with atoms of other elements?
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Noble gases tend to not bond with other elements.
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4 years ago
Introduction: Reaction rates are also influenced by surface area and concentration. The surface area of a solid is a measure of
Yuki888 [10]

Answer:

See explanation

Explanation:

Surface area has to do with the number of solid particles that are exposed at a given time and is capable of colliding with other reactant particles. When more surface area is exposed for reaction, then it means that more particles are likely to collide with each other leading to faster chemical reaction rates. When few particles are exposed for reaction (low surface area) then less collisions occur and the rate of reaction is decreased.

Similarly, concentration refers to the amount of substance present. The greater the amount of substance present, the greater the likelihood of collision between particles and the greater the rate of reaction and vice versa.

7 0
3 years ago
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