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Hatshy [7]
3 years ago
15

A gas is held at 120.4 kPa and 333K. When the temperature is decreased to

Chemistry
1 answer:
lozanna [386]3 years ago
3 0

Answer:

....

Explanation:

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At which temperature will the least amount of time pass before someone detects the odor of a fragrant flower?
alukav5142 [94]
<span>0 °C. 8 °C. 29 °C. 15 °C.</span>
7 0
4 years ago
500 mL solution of calcium chloride with a concentration of 0.75 mol/L. The mass of solute needed to make this solution is ___ _
BabaBlast [244]

Answer:

41.63g

Explanation:

Given parameters:

Volume of CaCl₂  = 500mL  = 0.5L

Concentration  = 0.75mol/L

Unknown:

Mass of the solute needed = ?

Solution:

The mass of the solute can be derived using the expression below;

     Mass  = number of moles x molar mass

But,

   Number of moles  = Concentration x Volume

So;

     Mass  = Concentration x Volume x molar mas

Molar mass of CaCl₂  = 40 + 2(35.5) = 111g/mol

     Mass  = 0.75 x 0.5 x 111 = 41.63g

5 0
3 years ago
How is osmosis different from diffusion?
RUDIKE [14]
Osmosis is the movement of water and is always the movement in the membrane. Diffusion does not need a membrane to make molecules and Diffusion is the movement of molecules.
hoped this helped, good luck
3 0
3 years ago
Read 2 more answers
There are three ways to give an object a static charge. They are friction, conduction and induction. A student states she has tw
worty [1.4K]

Answer:

c

Explanation:

4 0
3 years ago
Which of the following is the correct structural formula for ethene
lord [1]
Ethene belongs to class of unsaturated hydrocarbons called as Alkenes. Alkene contains a double bond between two carbon atoms. And the general formula for alkene is,

                                               CnH2n

Whereas in Ethene, n = 2, so
   
                                               C₂H₄

Therefore, in ethene there are two carbon atoms doubly bonded to each other via one sigma and one pi bond. Also each carbon atom is further covalently bonded to two hydrogen atoms via sigma bond as shown below,

4 0
4 years ago
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