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In-s [12.5K]
2 years ago
15

Choose all of the answers that describe beneficial microorganisms.

Chemistry
1 answer:
REY [17]2 years ago
7 0

Answer:

1, 4,3,2

Explanation:

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Have you ever seen ash fly upward from a campfire? Use at least 2 sentences to explain what you think is happening to the ash to
Advocard [28]

Answer:

Convection

Explanation:

there are two types of heat transfer happening in this example.  The first one is convection. As air is heated, it expands.  As it expands, it becomes lighter than the surrounding air and it rises. It becomes ash. The second type of heat transfer happening is radiation. It is the type of heat one feels when sitting in front of a fireplace or around a campfire, As it is in this example. Hope I helped!

3 0
2 years ago
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Which allele for human blood type is recessive?
blagie [28]
O blood type is recessive hope this helps

8 0
3 years ago
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PLEASE HELP! I'll mark brainliest!
OLEGan [10]
Acidic and basic are two extremes that describe chemicals, just like hot and cold are two extremes that describe temperature. Mixing acids and bases can cancel out their extreme effects, much like mixing hot and cold water can even out the water temperature. A substance that is neither acidic nor basic is neutral. 
The character of acidic, basic and neutral is defined by the concentration of hydrogen ions [H+](mol/L). A solution with a concentration of hydrogen ions higher than 10-7mol/L is acidic, and a solution with a lower concentration is alkaline (another way to say basic). Using the formula, pH=-log[H+], a pH of 7 is neutral, a pH less than 7 is acidic, and a pH greater than 7 is basic. As one can see from this formula, ten times a given concentration of hydrogen ions means one unit lower in terms of pH value (higher acidity), and vice versa. 
The formula for ph is given by:pH=−log10[H+]

What is the concentration of H+ ions at a pH = 8?

In calculating for the concentration of hydrogen ion, the formula is given by:[H+]=(10)^(-pH)
Solution:
[H+]=(10)^(-8)[H+]=0.00000001 mol/L

What is the concentration of OH– ions at a pH = 8?pH+pOH=148+pOH=14pOH=6
[OH-]=(10)^(-pOH)[OH-]=(10)^(-6)[OH-]=0.000001
What is the ratio of H+ ions to OH– ions at a pH = 2?The ratio is 0.00000001:0.000001 which is equal to 0.01
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3 years ago
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svetlana [45]
An atom of any element must contain "<span>(2) an equal number of protons and electrons" but it should be noted that atoms can borrow electrons from one another. </span>
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3 years ago
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Forests are the only carbon sinks on Earth. Please select the best answer from the choices provided T F
dmitriy555 [2]
False, as oceans can act as carbon sinks along with forests. 
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3 years ago
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