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olga nikolaevna [1]
3 years ago
8

Which of these is a characteristic of science? (5 points) Question 1 options: 1) It cannot be reproduced by any scientist. 2) It

cannot be changed by new knowledge. 3) It is based on empirical evidence. 4) It is guided by a set of values.
Chemistry
1 answer:
Alex17521 [72]3 years ago
4 0

Answer:

3

Explanation:

It is based on empirical evidence

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Answer:

Anthropocene

Explanation:

Anthropocene epoch is sort of unofficial epoch that scientists have used to describe basically human made impact on geological scale.

here's more info:

https://www.earthsystems.com/the-anthropocene/

3 0
2 years ago
A solution at ph 10 contains __________ than the same amount of solution at ph 8.
Sindrei [870]

100 times less H+

A solution at ph 10 contains<u> </u><u>100 times less H+</u> than the same amount of solution at ph 8.

<h3>The pH scale: How does it function?</h3>
  • The pH scale determines how acidic or basic water is.
  • The range is 0 to 14, with 7 representing neutrality.
  • Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
  • In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.

<h3>How does the pH change when two acids are combined?</h3>
  • An acid's strength increases with the quantity of hydrogen ions it releases.
  • The pH of the strong acids is between 1 and 2.
  • We may observe that there is no response when two acids of the same strength are combined.
  • It's because the end product will be neutral and the pH won't change.

<h3>How is pH value determined?</h3>

There are two ways to measure pH:

  • colorimetrically with indicator fluids or sheets
  • electrochemically with electrodes and a millivoltmeter for greater accuracy (pH meter).

To learn more about pH visit:

brainly.com/question/491373

#SPJ4

8 0
2 years ago
When the temperature of a reacting mixture increases, the rate of reaction increases. Which statement explains why the rate of r
wlad13 [49]

Answer:

This is one of the factors that affects chemical reactions

Temperature:This is because when the temperature is raised energy in form of heat is supplied to the reacting particles and so the rate of reaction is increased.

3 0
3 years ago
Which determines the frequency of a sound wave? A the intensity of the sound waves B the rate at which the sound source is vibra
andreyandreev [35.5K]

Answer:

b

Explanation:

The number of vibrations per second is known as the frequency

7 0
3 years ago
Read 2 more answers
How many single covalent bonds can halogens form?
Simora [160]
One single covalent bond, hope this helps!
4 0
3 years ago
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