The three components of an expressway entrance are the Entrance ramp, acceleration lane, and merging area.
<h3>what is an expressway?</h3>
An expressway is a road that is specifically designed for high-speed traffic. These roads often have few crossings, few places of access or departure, and a divider between lanes for opposing-direction traffic.
It was mainly designed to make it easier for traffic to move at high speeds and in huge volumes.
Freeways, parkways, and turnpikes are examples of expressways. A highway is a primary route, but an expressway is a multilane highway.
Its principal objective was to facilitate the movement of heavy, fast-moving vehicles.
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Answer:
Is the atomic theory known, for certain, to be true?
Answer:
No; a theory, as all scientific principles, is never certain. It is permanently subject to testing and experimental verification. Even if a theory is found to agree with all of the available observational data, and all of its predictions have been found to be ``correct'', i.e. borne out by all observations until today, it may yet be disproved by tomorrow's more precise observations. It is, in fact, the attempt to disprove the existing theories which is the purpose of most scientific experimentation.
[2.2]
Carbon atoms are about 25% lighter than oxygen atoms (the ratio of their weights is 3 to 4). What is the weight ratio of the carbon and oxygen that go into the formation of carbon monoxide? Answer the same question for carbon dioxide.
Answer:
Carbon monxyde has the chemical composition CO, i.e. there is one carbon atom for every oxygen atom; therefore the weight ratio of carbon to oxygen in this compound is just the weight ratio of the atoms, i.e. 3 to 4. In carbon dioxide, tex2html_wrap_inline121 , there are two oxyen atoms per carbon atom, so the carbon to oxygen weight ratio in carbon dioxide is 3 to 8.
[2.4]
Which of these is a pure compound, which is an element, and which is neither: (a) pure water, (b) oxygen gas, (c) liquid mercury, (d) tex2html_wrap_inline123 , (e) U, (f) air,
(g) He, (h) carbon dioxide, (i) tex2html_wrap_inline125 , (j) polluted water?
Answer:
Explanation:
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Answer: The basicity of the salt anion
Explanation:
All the weak acid is neutralized at the equivalence point and transferred to its conjugate base (number of moles of H+ = increased number of moles of OH–). Therefore the solution produced is weakly alkaline and the pH of the equivalence point will be greater than 7.
Answer=4
Only solids can create regular geometric patterns... CO2 is a gas, H2O is a liquid and Sodium Chloride doesn't count because it's dissolved in a solution...
Answer:
b
Explanation:
exothermic... heat is released