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seropon [69]
2 years ago
14

Which of the following is a synthesis reaction?

Chemistry
2 answers:
Allushta [10]2 years ago
7 0

Answer:  4 A1+3 02 → 2 Al2O3

Explanation: Two different atoms combines together to produce a compound.

Orlov [11]2 years ago
6 0

Answer:

c) Fe + CuCl2 → FeCl2 + Cu

Explanation: Synthesis Reaction is when you get same thing on the other side even if its not in the same order after you add the components.

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The first task you are assigned in your summer laboratory job is to prepare a concentrated naoh stock solution. the molecular we
tensa zangetsu [6.8K]

240 g NaOH

<em>Step 1</em>. Calculate the moles of NaOH

Moles of NaOH = 0.750 L solution × (8 mol NaOH/1 L solution) = 6 mol NaOH

Step 2. Calculate the mass of NaOH

Mass of NaOH = 6 mol NaOH × (40 g NaOH/1 mol NaOH) = 240 g NaOH

7 0
3 years ago
Why is acetic anhydride added slowly to a dichloromethane solution of the other reactants?
storchak [24]
Acetic anhydride is the only monocarboxylic acid anhydride which is an acylating agent capable of modifying reactions. The dichloromethane is the reaction solvent.

The acetic anhydride should be added slowly through a separatory funnel to other reactants so as to avoid a runaway reaction, also known as thermal runaway. By doing this the reaction mixture boils as gently as possible while stirring. This phenomenon occurs in situations where an increase in temperature changes the conditions in a way that leads to destructive result brought about by a further increase in temperature.
8 0
3 years ago
Read 2 more answers
If decomposition of 1 mole of ethylene with a gas density of 0.215g/mL starts at 29 degree celcius and the temperature increases
stellarik [79]
We calculate first the initial pressure of the gas. 
                         P = nRT/V
                            = (0.215 g/mL)(1 mol/16 g)(0.0821 L.atm/mol K)(302K)
                             = 0.333 atm
Using the relationship between the pressure and temperature,
                       P1/T1 = P2/T2
Substituting the known values,
                        (0.333 atm) / (29 + 273) = P2/(950)
                                 P2 = 1.05 atm
7 0
3 years ago
a container contains 5L of nitrogen gas at 25°C. what will be it's volume if the temperature increases by 35°C keeping the press
Olin [163]

Answer:

5.168 L

Explanation:

Applying Charles Law,

V/T = V'/T'..................... Equation 1

Where V = Initial Volume, T = Initial Temperature in Kelvin, V' = Final Volume, T' = Final Temperature in Kelvin,

Make V' the subject of the equation,

V' = VT'/T................. Equation 2

From the question,

Given: V = 5L, T = 25°C = (25+273) = 298K, T' = 35°C = (35+273) = 308K

Substitute these values into equation 2

V' = (5×308)/298

V' = 5.168 L

4 0
3 years ago
PLS HURRY I NEED IT IN THE NEXT FEW MINUTES THANK YOUU
nydimaria [60]

Answer:

it is the first answer

Explanation:

djdjrnrh

6 0
3 years ago
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