Answer:
The ideal gas law ... A gas turbine, which uses continuous combustion, simply exhausts its ... This makes them ideal for use in vehicles, as they also start up more ... A four stroke engine delivers one power stroke for every two cycles of ... ignition, exhaust) however, these steps occur 3 times per one spin of. Internal combustion engine.
Explanation:
Answer:- B.
Explanations:- A precipitation reaction is a double displacement reaction in which a solid salt is formed.
If we look at all the given equations then it's only second reaction in which a solid salt (CdS) is formed. In rest of the reactions there is no solid salt formed.
It means A, C and D are not the right choices and so the correct choice is only B.
Here the phase are given for all the products. If the phases are not given then we use the solubility chart to see which reactions would form the precipitate.
Since, the precipitate is formed only in second equation, the correct choice is B.
Early stages of carbon monoxide poisoning is often confused with seasickness or intoxication.
This is so because some symptons of carbon monoxide (CO gas) poisoning are: irritated eyes, headache, nause, weakness and dizziness. As you can see those symptons are common to seasickness and intoxitation.
Carbon monoxide (CO gas) is colorless and odorless, so it may be difficult to detect the exposure to it before having some symptons of CO poisoning, but it is serious and can result in death. The victim shall be conducted to an open place promptly to receive fresh air and carried to a hospital to receive treatment urgently.
In general, bonds with an electronegativity difference of 0-0.5 are nonpolar covalent, bonds with an EN difference of 0.5-2.0 are covalent, and anything above 2.0 is considered ionic.
To determine the bond types of the pairs of elements, we will need their EN values. We can subtract their EN values to find their EN difference.
H and Br: 2.96-2.20=0.76
Therefore a bond between H and Br would be moderately polar covalent.
Cl and F: 3.98-3.16=0.82
Therefore this bond is moderately polar covalent.
K and Cl: 3.16-0.82=2.34
Therefore this bond is ionic.
Li and O: 3.44-0.98=2.46
Therefore this bond is ionic.
Br and Br: Because these are the same element, meaning that they have the same EN value, we automatically know that their EN difference would be zero. Therefore, this bond is very covalent.