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iren2701 [21]
3 years ago
11

Which example of variation within species (select all correct answers)

Chemistry
2 answers:
s344n2d4d5 [400]3 years ago
6 0
3 and 4 because the other two answers are different species.
zalisa [80]3 years ago
4 0

Answer:

C and D

Explanation:

These are still the same species just with slightly diferent gene arangments

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Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydro
Dahasolnce [82]

The product(s) of the reaction are to be determined given the reactants, sulfuric acid and potassium hydroxide. sulfuric acid is an acid, whereas potassium hydroxide is a basic. The results of this neutralizing process are salt and water.

<h3>What is the reaction between sulfuric acid and potassium hydroxide?</h3>

The result will be, H+ from H₂SO₄ reacts with OH- from KOH to generate H₂O. Also, K+ reacts with SO₄²⁻ to create K₂SO4₄

As a result, the balanced equation will be:

\rm H_2SO_4 + 2KOH --- > K_2SO_4 + 2H_2O

Thus, the product(s) of the reaction are to be determined given the reactants, sulfuric acid and potassium hydroxide. Sulfuric acid is an acid, whereas potassium hydroxide is a basic. The results of this neutralizing process are salt and water.

Learn more about potassium hydroxide

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6 0
3 years ago
Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing
UkoKoshka [18]

<u>Answer:</u> 1.2 moles of carbon dioxide is produced for the given value of oxygen.

<u>Explanation:</u>

The chemical reaction for the combustion of acetylene follows the equation:

2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O

By stoichiometry of the reaction:

5 moles of oxygen produces 4 moles of carbon dioxide.

So, 1.5 moles of oxygen will produce = \frac{4}{5}\times 1.5=1.2mol of carbon dioxide.

Hence, 1.2 moles of carbon dioxide is produced for the given value of oxygen.

4 0
4 years ago
A pure Silicon crystal has 700,000 free electrons (actual number of electrons; not the concentration). How many holes does it ha
Sveta_85 [38]

Answer:

700,000 holes

Explanation:

When heat energy occurs to produce free electrons, the number of free electrons produced is directly proportional and equal to the number of holes it produces at that time.

Hence, if silicon crystal (pure) has 700,000 free electrons, then the number of holes it have is also 700,000.

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3 years ago
Drag the types of electromagnetic waves to place them in order of increasing wavelength.
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From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared
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4 years ago
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On a hot summer day, air rises most quickly when it is above a
GalinKa [24]
I’d say probably a forest
7 0
3 years ago
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