1)What is not true of a scientific law?A) It must be verified by scientists around the world.
B) It attempts to explain why things happen.
C) It describes what happens in the world around us.
D) It must be supported by many independent scientific investigations.
2)Observation and experimentation have led many scientists to accept a theory about the origin of the universe. This theory is called the Big Bang Theory. Scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. What makes this a scientific theory?
A)It has been proven by several scientists independently, resulting in its being accepted as truth.
B)It is based on the beliefs and opinions of the majority of the scientific community.
C)It is an observation of the natural world that has been proven as fact.
D)It is the best explanation that scientists can offer, based on many scientific investigations.
3)A scientist in Italy published his findings from a scientific investigation that he conducted. Other scientists from around the world conducted similar investigations to test the results. All of the investigations result in similar findings. What does this say about the findings of these investigations?
A)They have been proven to be scientific fact because all the investigations gave similar findings.
B)The findings are automatically promoted to a law because they were proven by so many scientists.
C)They are ready to be published in the media and in text books as a new scientific theory.
D)The results are considered more reliable because they were documented by separate investigations.
4)Which of the following is not an example of kinetic energy?
A)mechanical energy
B)nuclear energy
C)electrical energy
D)thermal energy
Answers
A) It must be verified by scientists around the world.
A scientific law is a way to describe a phenomenon that occurs in our universe. In order for a research to become law, it must be accepcted by the vast majority - if not all - of the scientists in the same field. However, they do not have to verify the potential law, they can choose to falsify or just to accept proofs taken by the discovers.
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A)It has been proven by several scientists independently, resulting in its being accepted as truth.
The Big bang is a scientific theory that explain how our universe was born. Before becoming a theory and becoming the "fact" we assume it is, it was long subject of study, and it was accepted only when different study from different scientists pointed out in the same direction. Hoever, ever today, study continues to have a better understanding of the phenomenon.
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D)The results are considered more reliable because they were documented by separate investigations.
When different experiments are made, and they gave out similar results, the results become more reliable, as they are been proven by different sources in an indipendent way. However, this do not imply a pubblication or the trasformation of the results into a scientific law, as those steps go through a different process.
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B)nuclear energy
C)electrical energy
D)thermal energy
Only mechanical energy is a type of kinetic energy. Kinetic energy means an energy that derives from a movement. Nuclear energy, electrical energy and thermal energy are other forms of energy. Energy from one of these sources could be converted into kinetic energy, or kinetic energy could be used to generate other forms of energy.
C) It describes what happens in the world around us.
2)Observation and experimentation have led many scientists to accept a theory about the origin of the universe. This theory is called the Big Bang Theory. Scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. What makes this a scientific theory?
D)It is the best explanation that scientists can offer, based on many scientific investigations.
3)A scientist in Italy published his findings from a scientific investigation that he conducted. Other scientists from around the world conducted similar investigations to test the results. All of the investigations result in similar findings. What does this say about the findings of these investigations?
A)They have been proven to be scientific fact because all the investigations gave similar findings.
4)Which of the following is not an example of kinetic energy?
A)mechanical energy
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Answers
To solve this we must be knowing each and every concept related to experiment. Therefore, the correct option is option A that is to leave the room and go to an area with fresh air.
What is experiment?
Any procedure where measurements are taken and tests are run to support or disprove a hypothesis is referred to as a scientific experiment.
A science class is conducting an experiment that produces noxious fumes. Because of inadequate ventilation, some students begin to feel nauseated and dizzy. The first response should be to leave the room and go to an area with fresh air.
Therefore, the correct option is option A that is to leave the room and go to an area with fresh air.
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Answers
Answer:
nervous system
Explanation:
Have a good day!!
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1 mol -------- 98.079 g
? mole ------ 0.0960 g
moles = 0.0960 * 1 / 98.079
= 0.0960 / 98.079
= 9.788 x 10⁻⁴ moles
hope this helps!
Final answer:
The number of moles of 0.0960 grams of H2SO4 can be calculated using the formula: mole = mass / molecular weight. Given that the molecular weight of H2SO4 is 98.08 g/mol, we find that 0.0960 grams of H2SO4 is approximately 0.000978 moles.
Explanation:
The question is asking us to find a mole of 0.0960 g of H2SO4. In order to solve it, we need to know the molecular weight of H2SO4 (Sulfuric acid), which is approximately 98.08 g/mol.
This means that 1 mole of H2SO4 has a mass of 98.08 grams. We would now like to find out how many moles correspond to 0.0960 grams.
We use the equation: mole = mass / molecular weight, thus: mole = 0.0960 g / 98.08 g/mol = 0.000978 moles.
Therefore, 0.0960 grams of H2SO4 corresponds to approximately 0.000978 moles.
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Answer:
Explanation:
Na reacts with all OH groups to produce hydrogen.
The reaction with cyclobutanol is shown below.
The reaction with butanoic acid is
Both compounds release bubbles of hydrogen, so you can't use sodium to distinguish between them.