Answer:
the answer is c because the motor inside the body massager moves the massagers creating a massage?
Explanation:
Answer: only Br2.
Justification.
In a chemical reaction the element that gains electrons experiments a reduction in its oxidation state, that is why it is said that it is reduced.
So, to know what element is being reduced you need to calculate the oxidation states of the elements involved.
Here I indicate the oxidation states of each element if the reaction putting them inside parenthesis:
Reactants side Products side
K (0) K (1+)
Br (0) Br(1-)
So, K lost one electron, increasing its oxidation statefrom 0 to 1+, meaning that it is being oxidized.
And, each atom of Br gained one electron, reducing its oxidation state from 0 to 1-, meaning it is being reduced.
Therefore, the answer is that Br2 is the substance being reduced.
Answer:
it was invented in 1960
Explanation:
it was descibed as a wooden instrument ideally suited for gravity programmes in areas of limited latitude and temperature variations
Answer: CO is a limiting reagent with regards to the Fe production.
Explanation:
Moles of CO = 
moles of 
According to reaction , 3 mole of CO reacts with 1 mole of 
then , 0.4714 moles of CO will react with : 
moles of that is 0.1571 moles.
0.4714 moles of CO will react with 0.1571 moles of which means that CO is present in limited amount acting as limiting reagent.
Mole remaining of = 0.2673 mol - 0.1571 mol = 0.1102 mol
Hence, CO is a limiting reagent and is an excessive reagent.
An ionic bond is a bond which occurs when there is a
difference in the electronegativity of the atoms. One atom which has a stronger
electronegativity tends to steal the electron of the other less electronegative
atom hence making it more negative (anion), while the other becomes a cation.
So answer is:
<span>b. a cation and an anion</span>
