Answer:
89°C
Explanation:
Combined Gas Law (P₁V₁)/T₁ = (P₂V₂)/T₂
(1.25 atm)(450 mL)/(65°C) = (0.89 atm)(865 mL)/T₂
8.653846154 = 769.85/T₂
T₂ = 769.85/8.653846154
T₂ = 88.96044444 = 89°C
Answer:
option B= 6 : 4
Explanation:
Properties:
1. Carbon have six electron and six proton.
2. The two electrons are present in first shell while remaining of four electrons are present in the second shell.
3. it is non-metallic element and present in the group fourteen of periodic table.
4. its atomic mass is 12.0107 u.
5. its melting and boiling point is 3550 °C and 4827 °C respectively.
Uses:
1. it is used as a fuel in the form of coal.
2. in the form of graphite it is used in dry cells, as a lubricant, in pencil and high temperature crucible.
3. it is also used in jewelry in the form of diamond and because of its hard nature used in industries for drilling, polishing, cutting and grinding.
4. carbon black powder is used in printer ink.
5. its most common alloy with iron is steel.
6. it form variety of compound with number of other elements like nitrogen, hydrogen, oxygen etc.
Electronic configuration:
1s2, 2s2, 2p2
Isotopes of carbon:
There are fifteen isotopes of carbon from C8 - C22. The isotopes C12 and C13 are stable while C14 is radioactive.
Answer:
Es la capacidad, el poder de un átomo en una molécula para atraer a los electrones hacia sí.
Explanation:
Answer:
See below
Explanation:
It is neither, at least not at room temperature.
Citric acid exists as a power at room temperature, but can be crystallized from cold water. This can be considered it's " solid state, " but as I mentioned before this acid is a powder. Take a look at the attachment below. This is a citric acid present as a crystal;
<span>Carrier Gas, Flow Controller, Column, Detector, Recorder
</span>First we have a cylinder containing the
carrier gas. From there, the carrier gas goes to the flow controller, which determines
how much carrier gas we are entering into the column (it doesn’t let more gas
pass through). Then, the carrier gas enters the column, which is the most
important part of the device. The sample enters the column from another place:
the injector. Then, the sample and the carrier gas go together across the
column. The interactions between the sample and the column will determine how
fast each sample component goes through the column, and so: which component
gets out earlier. So, at the end, you will have isolated each substance. Then,
each one passes (alone) through the detector, which measures something about
the sample – this information will let you know which substance it is. Finally,
the recorder provides you with the information the detector has found.
Nowadays, the recorder is a computer. In the “stone age” they just used a rudimentary
printer.
