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Arisa [49]
3 years ago
12

A scientific theory is

Chemistry
1 answer:
vlada-n [284]3 years ago
7 0
The answer is A. an explanation
You might be interested in
A 0.0100 M solution of AgNO3 has a concentration of Ag ion equivalent to
qaws [65]

Answer:

0.0100M of AgNO3 contains 0.0100M of Ag+

Explanation:

AgNO3 when ionized yields Ag+ and NO3-. This means that the amount of AgNO3 in solution is equivalent to the amount of Ag+ and NO3- in that same solution.

1M of AgNO3 solution produces 1M of Ag+  

1M of AgNO3 solution produces 1M of NO3-

This occurs because of the complete ionization of AgNO3 in solution, allowing complete dissolution of the compound.

6 0
3 years ago
Which of the following can not be guessed about the prehistoric organism by its fossil ?
Studentka2010 [4]

Answer:

Evolution in the broadest sense explains that what we see today is different from what existed in the past. Galaxies, stars, the solar system, and earth have changed through time, and so has life on earth.Something that happened in the past is thus not "off limits" for scientific study. Hypotheses can be made about such phenomena, and these hypotheses can be tested and can lead to solid conclusions. Furthermore, many key aspects of evolution occur in relatively short periods that can be observed directly—such as the evolution in bacteria of resistance to antibiotics.Laws, like facts and theories, can change with better data. But theories do not develop into laws with the accumulation of evidence. Rather, theories are the goal of science.

Explanation:

4 0
3 years ago
Soil comes in different colors.
ollegr [7]

Answer: yes they come in different colors.

Explanation:

Most shades of soil is mostly black,brown,red,gray,and white the color of soil and other properties including texture, structure, and consistency are used to distinguish and identify soil.

7 0
3 years ago
Make a paragraph with the word barometer and weather vane and anemometer and aerovane
koban [17]

Answer:

Anemometers measure wind speed and wind vanes measure wind direction. A typical wind vane has a pointer in front and fins in back. When the wind is blowing, the wind vane points into the wind.Barometers, manometers and anemometers are all scientific instruments. Scientists use barometers and manometers to measure atmospheric pressure, while anemometers measure wind speed.

Explanation:

3 0
3 years ago
Find the molarity of a solution in which 0.99 mol of NaCl are dissolved in 2.5 L of solution.
rusak2 [61]

Answer:

0.369M

Explanation:

\boxed{Molarity = mole \div volume}

☆ Volume has to be in litres

Molarity of solution

= 0.99 ÷2.5

= 0.369 M

3 0
3 years ago
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