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2 years ago

Which of these events leaves small pieces of rocks in new places? (4 points)

1 answer:

5 0

A. deposition

this means that it was moved from one place to another and can be transported by ice, water, gravity, or wind.

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Sort these species into isoelectronic groups. It doesn\'t matter which group goes in which box, so long as the correct species a

OleMash [197]

Answer : The isoelectronic groups are:

$He,Be^{2+},Li^{+}$

$N^{3-},Mg^{2+}$

$S^{2-},Ti^{4+},K^{+}$

Explanation :

Isoelectronic : It is defined as the compound or molecule having the same number of electrons and the same number of electronic structure.

The element is helium. The number of electrons are 2.
The element is beryllium. The number of electrons are 4. The number of electrons in $Be^{2+}$ = 4 - 2 = 2
The element is lithium. The number of electrons are 3. The number of electrons in $Li^{+}$ = 3 - 1 = 2
The element is nitrogen. The number of electrons are 7. The number of electrons in $N^{3-}$ = 7 + 3 = 10
The element is neon. The number of electrons are 10.
The element is sulfur. The number of electrons are 16. The number of electrons in $S^{2-}$ = 16 + 2 = 18
The element is magnesium. The number of electrons are 12. The number of electrons in $Mg^{2+}$ = 12 - 2 = 10
The element is titanium. The number of electrons are 22. The number of electrons in $Ti^{4+}$ = 22 - 4 = 18
The element is potassium. The number of electrons are 19. The number of electrons in $K^{+}$ = 19 - 1 = 18

The isoelectronic groups are:

$He,Be^{2+},Li^{+}$

$N^{3-},Mg^{2+}$

$S^{2-},Ti^{4+},K^{+}$

7 0

3 years ago

Newton's First Law of Motion means that it will take a force to start and stop an object in motion.

larisa [96]

Newton first law of motion states that object will remain at rest until outside force acts on it

4 0

4 years ago

How many hydrogen atoms are there in 2 moles of water?

Nookie1986 [14]

Answer:

4 moles of hydrogen = 2.4092 x 10^24 atoms

Explanation:

4 0

3 years ago

I already figured this out, answers are marked by Arrows.

Mariulka [41]

1) a)

Fe2+ = ferrous and Fe3+ = ferric

Other cations:

Sn2+ = stannous ion and Sn3+ = stannic

Co2+ = cobaltous and Co3+ = cobaltic

Pb2+ = plumbous and Pb4+ = plumbic

2) b)

Sulfate is an anion represented as: SO₄²⁻

Other Cations:

Iron(III) ion = Fe3+

Ca2+= calcium divalent cation

Mercurous ion = Hg₂²⁺

3) a)

Ionic compounds are composed of both, an anion (negatively charged ion) and a cation (positively charged ion). The bond is formed by the transfer of electrons from cation to anion.

4) c)

Sulfur hexafluoride (SF6) is a neutral molecule composed of two elements: S and F. Hence, it is a binary compound.

5) c)

Molecular compounds tend to be inorganic compounds typically composed of two or more non-metals. For example: water H2O and carbon dioxide CO2.

6) d)

The compound MxTy is not and acid and M is a non-metal. Thus it could be a metalloid, a binary molecular compound.

6 0

4 years ago

1. Based on its location, which element would you predict has chemical properties most

tigry1 [53]

I think the answer is chlorine because it is closest to argon and in the same period

6 0

3 years ago