Answer:
D. Physics
Explanation:
First, let's define all the answer choices.
Biology: Biology is the study of life and living things. Biology deals with the function, growth, origin and more of organisms.
Chemistry: Chemistry is the study of matter, elements, atoms, compounds, molecules and more. Chemistry is also concerned with chemical reactions.
Planetary science: Planetary science is basically the study of planets. This is the study of planets, moons and planetary systems.
Physics: Physics is the study of matter, energy, and their interactions. This helps us to explain and understand things that happen in the universe.
The best choice is D. Physics. Physics is the study of how matter and energy interact.
The D. Physics is the study of how matter and energy interact. It helps us understand how things work and why they behave the way they do.
Physics is a natural science that explores the fundamental principles governing the universe. It studies the behavior of matter, energy, space, and time through the formulation of physical laws and mathematical equations. Physics covers diverse topics, including mechanics, electromagnetism, thermodynamics, relativity, quantum mechanics, and astrophysics, explaining phenomena from the subatomic to cosmic scales.
Thus, it is the study of how matter and energy interact. It is concerned with describing the interactions of energy, matter, space, and time to uncover the fundamental mechanisms that underlie every phenomenon. In simple terms, physics helps us understand how things work and why they behave the way they do.
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Answer:
0.254 M
Explanation:
The molarity is given by the formula M: Number of Moles/ Vol (L)
Number of Moles : 100 g/342.28 g/mol = 0.292 moles
M: 0.292 moles/ 1.15 L = 0.254 M to three significant figures
b. air
c. carbon dioxide
d. carbon
Answer is: b. air.
Homogeneous mixture (air) has the same proporties of its components (nitrogen, oxygen, carbon dioxide) throughout any given sample.
Together, nitrogen (N₂) and oxygen (O₂) by volume account for 99,03% of the gases composing the dry air in the lower atmosphere.
Volume of nitrogen in air is 78,08%.
Volume of oxygen in air is 20,95%.
Together: 78,08% + 20,95% = 99,03%.
(2) CH3OCH3 (4) CH3CH2CH3
The Correct answer is CH3COOH
The explanation:
when the electrolyte is: A substance that dissociates into ions in solution and acquires the capacity to conduct electricity.
- Electrolyte is actually a compound that dissolves easily in water and creates a solution that becomes a good conductor of electricity.
- The existence of free ions is the reason why the solution becomes a good conductor of electricity.
-The compounds that release small number of free ions on dissolving in water are called weak electrolytes
-and those that release large number of ions are strong electrolyte.
acetic acid partially dissociates in water to form two ions, H+ and CH3COO- , therefore making it a weak electrolyte