The ancient philosophers discussed the world around thembut did not do any experiments or detailed observations.
TRUE
FALSE
Answers
Answer:
FALSE
Explanation:
Final answer:
The claim that ancient philosophers did not conduct experiments or detailed observations is false. Philosophers like Aristotle made extensive contributions to biology through observation, and Hellenistic scholars conducted early forms of experimental research.
Explanation:
The statement that ancient philosophers discussed the world around them but did not do any experiments or detailed observations is FALSE. While it is true that some ancient philosophers, particularly in the early stages of Greek philosophy, were more speculative in nature, others, such as Aristotle, engaged in detailed observations and can be considered early scientists. For example, Aristotle conducted extensive studies on biology, classifying a vast number of species and making observations on their life cycles, habits, and anatomy.
Throughout history, methodologies have varied, and while the ancient philosophers didn't conduct experiments in the modern sense, they did employ various forms of inquiry to understand the world. Furthermore, in the Hellenistic period, scholars at institutions like the Library of Alexandria did indeed conduct forms of research that could be seen as experimental, such as Eratosthenes estimating the Earth's circumference.
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Help with chemistry, Ill give brainliest to whoever can helpThe mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium? (ignore the answer i chose, i just guessed)
Answers
compact bone, marrow, periosteum, spongy bone
B
marrow, spongy bone, compact bone, periosteum
C
spongy bone, periosteum, compact bone, marrow
D
periosteum, compact bone, spongy bone, marrow
Answers
Explanation: The outer part of the bone is called the compact bone.
Final answer:
The correct order of bone layers from outside to inside is Periosteum, compact bone, spongy bone, and marrow. This corresponds to option D in your question.
Explanation:
The structure of a bone from the outside to the inside is labeled as follows: First, the outermost later is the periosteum. It is a dense layer made up of connective tissue, which provides nourishment and support. The next layer inside is the compact bone. It provides hardness and strength.
Beneath the compact bone is the spongy bone which is porous and lighter, offering shock absorption to the bone. Finally, at the very center is the marrow, responsible for the production of red blood cells. So, the correct answer is D: Periosteum, compact bone, spongy bone, marrow.
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Answers
Answer : The correct option is, (2) 10 g of water at 55°C
Explanation :
Average kinetic energy of the gas particle is directly proportional to the temperature of the gas particle.
Formula used :
where,
R = Gas constant
T = temperature
= Avogadro's number
From this we conclude that the kinetic energy is directly proportional to the temperature where 'R' and are constant. That means kinetic energy depends only on the temperature not on the mass.
(Higher the temperature, higher will be the kinetic energy)
Hence, the average kinetic energy of water molecules is greatest in 10 g of water at 55°C.
Final answer:
The sample with the highest average kinetic energy of water molecules is (2) 10 g of water at 55°C.
Explanation:
Kinetic energy is a fundamental concept in physics that describes the energy an object possesses due to its motion. It depends on both an object's mass and its velocity. Objects in motion have kinetic energy, and the faster they move or the more massive they are, the greater their kinetic energy. This energy can be transferred or transformed but is always conserved in a closed system.
The average kinetic energy of water molecules depends on the temperature of the water. The higher the temperature, the greater the average kinetic energy. In this case, the sample with the highest average kinetic energy would be (2) 10 g of water at 55°C. This sample has a higher temperature than the other options, therefore, the water molecules in this sample have the highest average kinetic energy.
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(2) a zinc strip and 3.0 M HCl(aq)
(3) zinc powder and 1.0 M HCl(aq)
(4) zinc powder and 3.0 M HCl(aq)
Answers
Answer:
(4) zinc powder and 3.0 M HCl(aq)
Explanation:
First consider the equation of reaction:
1 mole of Zinc requires 2 moles of HCl for reaction.
mole of zinc = mass/molar mass = 5.0/65.38 = 0.0765 mole
0.0765 mole of zinc will require: 0.0765 x 2 = 0.1530 mole HCl
Mole of 1.0 M HCl = Molarity x volume = 1 x 0.05 = 0.05 mole
Mole of 3.0 M HCl = 3 x 0.05 = 0.15
Hence, the 3.0 M HCl is what will give the required number of mole.
Zinc in powder form will react faster compared to in strip because the former has higher surface area for reaction.
Therefore, zinc powder and 3.0 M HCl will give the fastest reaction rate.
The correct option is option 4.
Answers
This is some kind of is the electrostatic attraction between polar molecules that occurs when a hydrogen (H) atom bound to a highly electronegative atom such as nitrogen (N), oxygen (O) or fluorine (F)... see image below! ;-)
Final answer:
The intermolecular forces that exist between molecules of NH3, H2O, and HF are hydrogen bonding, dipole-dipole interactions, and London dispersion forces.
Explanation:
The intermolecular forces that exist between molecules of NH3, H2O, and HF are called hydrogen bonding, dipole-dipole interactions, and London dispersion forces. Hydrogen bonding occurs between a hydrogen atom bonded to a highly electronegative atom (such as O, N, or F) and a lone pair of electrons on a nearby molecule. Dipole-dipole interactions occur between molecules with permanent dipole moments, while London dispersion forces occur due to the temporary formation of induced dipoles in adjacent molecules.
Answers
if ur looking for 2 options
Answer:B & D
Explanation: