Answer:
d. calorimeter
Explanation:
Calorimeter -
It is the instrument use for the measurement of the heat that is absorbed or released during a physical change or in chemical change .
The instrument or devise is used for the study thermodynamics , biochemistry and chemistry .
Hence , From the question information , the instrument which can be used is a Calorimeter .
Answer:
0.54 mole of H2O.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
2CH3OH + 3O2 —> 2CO2 + 4H2O
From the balanced equation above,
2 moles of CH3OH reacted to produce 4 moles of water.
Finally, we shall determine the number of mole of water (H2O) produced by the reaction of 0.27 moles of CH3OH. This can be obtained as follow:
From the balanced equation above,
2 moles of CH3OH reacted to produce 4 moles of water.
Therefore, 0.27 moles of CH3OH will react to produce = (0.27 × 4)/2 = 0.54 mole of H2O.
Thus, 0.54 mole of H2O is produced from the reaction.
A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a COMBINATION reaction. A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a COMBINATION reaction.
<span>Diatomic gases contain covalent bonds. Take for example hydrogen atoms. They have one electron, which leads to the electron configuration 1s. This atom will gain stability by sharing its electron valence with other equal atom which is also willing to gain stability by sharing its valence electron. Then two atoms of hydrogen share their valence electrons to form a diatomic molecule through a covalent bond.</span>
Isotopes are the atoms of the same elements that have the same number of protons (same atomic number) , but different number of neutrons.
b.the same number of protons but a different number of neutrons.
