Answer:
The box will experience acceleration
Explanation:
The box experiences unbalanced forces and will, therefore, accelerate in other words, the force applied on it from the right is greater than that exerted on it from the left.
the answer is d i just took the quiz
The statement "They can be separated by physical processes" is a characteristic of mixtures (option D)
Mixtures are physical combinations of two or more substances. The components of a mixture are not chemically bonded together, and they can be separated by physical processes such as filtration, distillation, and evaporation.
Pure substances, on the other hand, are made up of only one type of atom or molecule. They cannot be separated by physical processes.
Therefore, the correct answer is They can be separated by physical processes (option D)
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Answer:
Ionic Compounds have high boiling and melting points as they're very strong and require a lot of energy to break. The electrostatic forces of attraction between oppositely charged ions lead to the formation of ions. Ionic compounds form crystals. These compounds are brittle and break into small pieces easily.
Explanation:
(B) specific gravity
(C) vapor pressure
(D) viscosity
(E) freezing point
The empirical formula of the compound containing 79.8% carbon and 20.2% hydrogen is CH₃
Divide by their molar mass
C = 79.8 / 12 = 6.65
H = 20.2 / 1 = 20.2
Divide by the smallest
C = 6.65 / 6.65 = 1
H = 20.2 / 6.65 = 3
Thus, the empirical formula of the compound is CH₃
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b. Inside
c. Outside
d. Upper
When calculating total valence electrons, extra electron pairs are added to the Outside of an atom. The answer is letter C. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4.
b) 2.5 billion years ago
c) 3.75 billion years ago
d) 5 billion years ago
Answer:
the answer is b) 2.5 billion years. if its half life is 1.25 billion years and there is only 25% of the element remaining, you would take 1.25 billion and multiply it by two to get 2.5 billion.