Em 1

1 answer:

8 0

science is a way of understanding the arena. right now a process, a product, and an organization, science allow people to both interact in the production of recent knowledge as well as use data to obtain preferred ends.

science is a scientific enterprise that builds and organizes expertise within the form of testable factors and predictions approximately the universe. technological know-how may be vintage because the human species, and some of the earliest archeological proof for scientific reasoning are tens of thousands of years vintage.

science know-how is the pursuit and alertness of information and expertise of the herbal and social world following a scientific method based totally on proof. the scientific technique includes the subsequent: objective commentary: size and data possibly although now not always the use of arithmetic as a device.

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Show the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion. Include all formal ch

Anna [14]

Answer:

See explaination

Explanation:

Please kindly check out the attached files for the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion.

4 0

3 years ago

What mass of nitrous oxide can be formed from 48.7 g of nitrogen?

Arisa [49]

$\\ \tt\bull\rightarrowtail2 N_2+O_2\longrightarrow 2N_2O$

2mol of N_2 forms 2mol of N_2O
1mol of N_2 forms 1mol of N_2O

Moles of N_2

$\\ \tt\bull\rightarrowtail \dfrac{48.7}{14}=3.4mol$

Molar mass of N_2O=44g/mol

Mass of N_2O formed

44(3.4)=132.16g

3 0

2 years ago

Is every solution also a mixture?

aleksandrvk [35]

A mixture consists of two or more components. a solution can consists of a solute dissolved in a solvent or two solvents mixed together, for instance. A mixture can also be two gases (CO2 and O2) mixed together or two solids mixed together (sawdust and chalk).

4 0

4 years ago

A student was asked to determine the concentration of ammonia, a volatile substance used in the clinical setting as a respiretor

UNO [17]

This question is describing two chemical equations whereby the concentration of ammonia has to be determined. The first reaction is between 25.00 mL of ammonia and 50.00 mL of 0.100-M HCl whose excess was neutralized with 21.50 mL of 0.050-M Na₂CO₃ and thus, the concentration ammonia in the cloudy solution was determined as 0.114 M.

First of all we need to go over the titration of the excess HCl with Na₂CO₃ by writing the chemical equation it takes place when they react:

$2HCl+Na_2CO_3\rightarrow 2NaCl+CO_2+H_2O$