Answer:
<h2>1. precede emotional experience</h2><h2>2. occur at the same time</h2>
Explanation:
William James and Carl Lange gave a theory about a type of emotion is called a James-Lange theory. According to this theory, physiological arousal creates an emotional experience. According to this theory, physiological changes are the primary condition while emotion is felt when brain interacts with the information obtained from the body.
According to the Cannon-Bard theory, the emotional feeling occurs when the dorsal thalamus is stimulated. In this theory, physiological changes and emotional experiences take place at the same time.
What causes environmental pollution is global warming and climate change
Answer:
162g
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
2C2H6 + 7O2 —> 4CO2 + 6H2O
Next, we shall determine the number of mole of water, H2O produced by the reaction of 3 moles of C2H6.
This can be obtained as follow:
From the balanced equation above,
2 moles of C2H6 reacted to produce 6 moles of H2O.
Therefore, 3 moles of C2H6 will react to produce = (3 x 6)/2 = 9 moles of H2O.
Therefore, 9 moles of H2O is produced from the reaction.
Finally, we shall convert 9 moles of H2O to grams.
This can be done as shown below:
Molar mass of H2O = (2x1) + 16 = 18g/mol
Mole of H2O = 9 moles
Mass of H2O =..?
Mole = mass / molar mass
9 = mass of H2O /18
Cross multiply
Mass of H2O = 9 x 18
Mass of H2O = 162g
Therefore, 162g of H2O were produced from 3 moles of C2H6.
Answer:
Correct option is C.
Explanation:
Such type of chemical reaction that involves a transfer of electrons between two species is known as oxidation-reduction or redox reaction.
Redox reaction is oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
For this reaction:
On reactant side:
Oxidation state of oxygen, cobalt, lithium = -2 ,+2, 0
While on product side of reaction:
Oxidation state of cobalt, oxygen, lithium = 0, -2, +1
Here, oxidation reaction take place because oxidation state of lithium is increased. While the oxidation state of cobalt in reducing, it is gaining electrons and so it undergoes reduction reaction.
So, Option C (Li) is correct.
Learn more about oxidation-reduction reaction:
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<u>Given:</u>
Isotopes of silver with atomic masses:
Ag - 107 and Ag - 109
% Abundance of Ag-107 = 51.35 %
% Abundance of Ag-109 = 48.65 %
<u>To determine:</u>
The average atomic mass of Ag
<u>Explanation:</u>
The average atomic mass can be calculated using the formula-
Average Atomic Mass = f1M1 + f2M2 + .......+fnMn
where:
f = fraction representing the abundance of that isotope
M = atomic mass of that isotope
In the case of silver
Average atomic mass = (51.35/100)*107 + (48.65/100)*109
= 54.9445 + 53.0285 = 107.973 amu
Ans: the average atomic mass for silver is 107.973 amu
