Answer:
Trial 2, because the amount of product formed per unit time is higher.
Explanation:
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D = m / V
D = 2790 g / 205 mL
D = 13.60 g/mL
Answer:
Manganese: Mn
Explanation:
The elestron configuration would show this is 25 electrons
Atomic number : 25
this electron configuration ends in
half of the d subshell which is 10
Answer:
The reaction involved in a campfire (burning of wood) includes:
Explanation:
We can clearly find here that when wood burns in presence of oxygen, there is a loss of mass in the form of gaseous products. Thus, in this case, the law of conservation of mass does not come true.
I support Lisa’s statement but there is a fact associated with the law of conservation of mass. The law stands true only when there is a definite mass of the reactants and products mentioned.
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Answer:
Ba
Explanation:
<u>The elements Calcium ( Ca ) and Cobalt ( Co ) , are both present in the same period , and across the period the atomic radius decreases from left to right , since , the atomic number increases , so the electrons increases , which in turns increases the effective nuclear charge , and hence the size decreases , </u>
Therefore ,
Calcium will have bigger atomic radii as compared to Cobalt .
Now,
<u>The elements Barium ( Ba ) and Calcium ( Ca ) are , both are present in the same group , and down the group , atomic radii increases , since , as going down the group , the atomic number increase , so the shells increases , hence the size increases .</u>
Therefore , the atom with the largest radii is Barium .