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4vir4ik [10]
2 years ago
6

1.Which has a larger radius Ca atom or Ca+2 ion?

Chemistry
1 answer:
arsen [322]2 years ago
4 0

Answer:

1.Ca atom has greater radius than Ca+2

2.F- ion has larger radius than F

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Lakes can disappear due to *
lesya [120]

Answer:

Drought, resulting in a 65% reduction in water levels.

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3 years ago
How many valance electrons are in an Adam of each element in group 15 in the periodic table
GuDViN [60]

Answer:5

Explanation:The pnictogen group, or nitrogen group, is located in column 15 of the periodic table. This family consists of the elements nitrogen, phosphorus, arsenic, antimony, bismuth, and ununpentium (N, P, As, Sb, Bi, and Uup, respectively). Each member of this family contains five valence electrons.

5 0
3 years ago
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Determine the correct set of coefficients to balance the chemical equation. __c6h6(l) + __o2(g)? __co2(g) + __h2o(g)
forsale [732]
To balance this equation, first we should consider balancing C because it only presents in one reactant and one product.  Assuming the coefficient of C6H6 is 1, there are 6 C's in the reactant, so it generates 6CO2.  Then consider balancing H for the same reason. If the coefficient of C6H6 is 1, there are 6 H's in the reactant, so it generates 3H2O.
Now that the coefficient of the products are determined, we can balance O. There are 6*2=12 O's in CO2 and 3*1=3 O's in H2O.  So the total number of O in the products is 12+3 = 15.  O2 is the only reactant that contains O, so to balance the equation, the coefficient of O2 should be 15/2.
Now the equation looks like:
C6H6 + 15/2O2 ⇒ 6CO2 + 3H2O.
Times both sides of the equation by 2 results the final answer:
2C6H6 + 15O2 ⇒ 12CO2 + 6H2O
3 0
2 years ago
I need to know the weighted average please!
maria [59]

Answer:

63.5456 amu

Explanation:

0.6917*62.9296+0.3083*64.9278= 63.5456\ amu

8 0
3 years ago
In the process of electrolysis, current can flow through a liquid because A. water molecules become negatively charged. B. hydro
Liula [17]
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3 years ago
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