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Genrish500 [490]
3 years ago
14

How do scientists measure the idea of time so long ago?

Chemistry
1 answer:
professor190 [17]3 years ago
6 0

The Ancient Egyptians used simple sundials and divided days into smaller parts, and it has been suggested that as early as 1,500BC, they divided the interval between sunrise and sunset into 12 parts. ... Known as a clepsydra, it uses a flow of water to measure time.

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Charles law describes the relationship of the volume and temperature of gas at a constant mass and pressure. According to this l
zavuch27 [327]

Answer: Charles's law states that the volume of a given amount of gas is directly proportional to its temperature on the kelvin scale when the pressure is held constant. with k being a proportionality constant that depends on the amount and pressure of the gas.

Explanation:

6 0
2 years ago
What is the Tychonic System?
ziro4ka [17]
<span>Tychonic System is a model of the Solar system that embraces all the benefits of Copernican and Ptolemaic systems, forming the most accurate one. This system was introduced by Tycho Brahe in16th century, and it looks like this:  the Earth is placed at the center of the universe, the Sun, Moon and the stars revolve around the Earth, and the other planets, in their turn, revolve around the Sun. </span>
5 0
4 years ago
Calculate the PH if the Poh is 8.00
Neporo4naja [7]
PH + pOH = 14
pH + 8 = 14
pH= 6
8 0
3 years ago
Is mercury a solution​
Dvinal [7]

Answer:

No.

Explanation:

Mercury is not a solution​. It is a detonator.

4 0
3 years ago
Which property describes a mixture? select three options. it can be separated by physical methods. it has a single chemical comp
Semmy [17]

The property of mixture which describes a mixture are it can be separated by physical methods, it can appear different from different sources and it cannot be described by a chemical symbol or formula.

<h3>What are mixtures?</h3>

Mixtures are the compounds which are formed by the addition or combination of one or two elements or compounds.

As in the mixtures many states of matters are present and it will be filtered by using various physical methods, and it is not chemically shown by single chemical symbol or formula. Mixtures are also of two types:

  • Homogeneous mixtures are those in which equal compositions all over the volume is present.
  • Heterogeneous mixtures are those in which different composition all over the volume is present.

Hence options (1), (3) and (4) are correct.

To know more about mixtures, visit the below link:

brainly.com/question/24647756

5 0
2 years ago
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