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olasank [31]
3 years ago
14

Boron is to the immediate left of carbon in the same row in the periodic table. Which of the following statements compares the r

adius and pull exerted by the protons of boron and carbon atoms?
A. Boron has a smaller radius and the protons in carbon exert a greater pull.
B. Boron has a larger radius and the protons in carbon exert a greater pull.
C. Boron has a smaller radius and the protons in carbon exert less pull.
D. Boron has a larger radius and the protons in carbon exert less pull.
Chemistry
2 answers:
natita [175]3 years ago
7 0

Answer:

Boron has a larger radius and the protons in carbon exert more pull.

Explanation:

Remember than elements have greater radius as they are closer to the bottom left corner, so boron would have the larger radius here. Carbon has a smaller radius, which makes it easier for the protons in carbon to exert more pull.

SOVA2 [1]3 years ago
5 0

Answer:Boron has a larger radius and the protons in carbon exert more pull.

Explanation:

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Why do elements form compounds? What elements never form compounds and why?
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Answer:

Elements form compounds to satisfy the octet rule. Noble gasses never form compounds because they already satisfy the octet rule.

Explanation:

The octet Rule is the theory that an element will attempt to gain a valence of 8 by binding with another element in it's vicinity. This can happen in a variety of ways, but the main thing to remember is that they will take the "shortest path" to 8(I.e an element will sometimes lose an electron or 2 if it has a valence 1 or 2 to loop back around to 8, while an element with a valence of 6 or 7 will attempt to gain 2 or 1 electrons).

Valence of elements can be counted by group in the image attached.

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How many moles are there in 2.35 grams of H2O?
Marysya12 [62]

Answer:

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Magnesium (24.48g) reacts with hydrochloric acid (xg) to produce hydrogen gas (2.04g) and magnesium chloride (96.90g). How much
andriy [413]

Answer:

Mass = 73.73 g

Explanation:

Given data:

Mass of Mg used = 24.48 g

Mass of HCl used = ?

Mass of hydrogen gas produced = 2.04 g

Mass of Magnesium chloride produced = 96.90 g

Solution:

Chemical equation:

Mg + 2HCl   →    MgCl₂ + H₂

Number of moles of Mg:

Number of moles = mass/ molar mass

Number of moles = 24.48 g/ 24.305 g/mol

Number of moles = 1.01 mol

Now we will compare the moles of Mg with HCl from balance chemical equation.

                              Mg             :            HCl

                               1                ;               2

                            1.01              :           2/1× 1.01 = 2.02 mol

Mass of HCl react:

Mass = number  of moles × molar mass

Mass =  2.02 ×  36.5 g/mol

Mass = 73.73 g

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