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Akimi4 [234]
3 years ago
5

What is a pictograph​

Biology
1 answer:
natita [175]3 years ago
6 0

Answer: A pictograph is a symbol for a word or phrase.

i hope this helps you :D

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The pH scale measures the acidity of a substance. It is a negative logarithmic scale. A pH of 3 has a hydrogen ion concentration
Hitman42 [59]

Answer:

The correct answer is: a pH 2 solution has a <u>10000 times</u> greater hydrogen ion concentration than a pH 6 solution.

Explanation:

The pH scale is a measurement used to describe the acidity of a solution, and this acidity is given by the concentration of H+ (hydrogen ion) in said substance. A solution with a greater concentration of H+, is more acid than a solution with a smaller concentration of H+ and, therefore, has a lower pH. Given that the pH scale is a negative logarithmic scale, a solution with a pH of 3 has a ten times greater H+ concentration than a solution with a pH of 4.

A pH 2 solution has 10 times more H+ ion concentration than a pH 3 solution, 100 times more H+ ion concentration than a pH 4 solution, 1000 times more H+ ion concentration than a pH 5 solution, and 10000 times more H+ ion concentration than a pH 6 solution.

6 0
3 years ago
What helps animal sperm cells move so that they can reach an egg?
vlabodo [156]
A flagella helps an animal sperm move!
3 0
3 years ago
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Give several reasons why five trained individuals might come up with different readings
andriy [413]

Various reasons why five trained individuals might come up with different readings are - while carrying out an experiment, the accuracy with which each individual perform an experiment varies. The readings in different instruments used while performing an experiment also differs.

There is certain percentage of error that occurs while carrying out an experiment by each of the individual. Physical conditions such as temperature, pressure changes from one place to another where the experiments are being carried out.

5 0
3 years ago
what can be inferred about the evolution of the cranium and vertebral column from examining hagfishes and lampreys?
dalvyx [7]

Answer:

What can be inferred about the evolution of the cranium and the vertebral column from examining hagfishes and lampreys? Comparison of hagfishes with lampreys shows that the cranium evolved first in early vertebrates, as it is seen in hagfishes, which evolved earlier than lampreys.

Explanation:

I hope this helps!

4 0
3 years ago
Where do talbots sympathies lie does she believe that naming a single valedictorian is right or wrong?
MariettaO [177]

Answer:

Firstly:

Where do talbots sympathies lie?

Answer:

Talbot didn't provide clear and direct answer

Secondly:

does she believe that naming a single valedictorian is right or wrong?

Answer:

Talbot gave her view on either sides which are "designed for a simpler time" and "something is lost if schools eliminate"

5 0
3 years ago
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