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3 years ago

Two steps that the factory manger can take to make the factory more carbon neutral are to and to

1 answer:

3 0

To eliminate the carbon dioxide pollutants, the factory manager should employ unit operations for CO2 capture. One example is through absorption process by using commercial CO2 absorbents like soda lime.

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When a strip of magnesium metal is placed in an aqueous solution of copper(II) nitrate, elemental copper coats the surface of th

Lera25 [3.4K]

Answer:

1. 2+ ( $Cu^{2+}$ ).

2. 0 ( $Cu^0$ ).

Explanation:

Hello,

In this case, the described chemical reaction is a redox reaction in fact, since the oxidation states of both magnesium and copper change as shown due to the displacement:

$Mg(s)+Cu(NO_3)_2(aq)\rightarrow Mg(NO_3)_2(aq)+Cu(s)$

Therefore:

1. Since copper is the cation in the copper (II) nitrate, the (II) means that its charge is 2+ ( $Cu^{2+}$ ).

2. Since copper is alone, it means no electrons are being neither shared not given, its charge is 0 ( $Cu^0$ ).

Best regards.

4 0

3 years ago

Why is light helpful? You can just give one reason

hoa [83]

Light is helpful because it allows us to see things around us.
I hope this helps :)

3 0

3 years ago

How do subscripts represent the charge balance of ions

finlep [7]

<h3><u>Answer and explanation</u>;</h3>

To balance the charges of ions the number of electrons lost is equal to the number of electrons gained. The overall net charge must be zero.
The number of ions needed to accomplish this is represented by the subscripts.
For any given ionic compound, the product of the charge on the ion (or multiatomic ionic group) times the subscript of the ion will give a total charge of zero when all ions are considered.

For examples: NaCl Na = +1 Cl = -1 total is zero

5 0

4 years ago

a stone is found to have a volume of 34.9cm3. it has a mass of 30.8g. what is the density of the stone

FromTheMoon [43]

Answer:

Explanation:

ρ =

30.8 gram

34.9 cubic meter

= 0.88252148997135 gram/cubic meter

= 0.00088252148997135 kilogram/cubic meter

3 0

4 years ago

In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many

mote1985 [20]

There are none

<h3>Further explanation</h3>

Given

a molecule of calcium sulfide

two valence electron of Calcium(Ca)

six valence electrons of Sulfur(S)

Required

number of lone pairs of electrons

Solution

Lewis structure shows the form of bonds that occur in the valence electrons of an element or compound

Valence electrons are electrons used in a chemical bond

To achieve stability, the element S needs 2 more electrons which are obtained from 2 electrons from the Ca element,

A lone pair electron means refers to an unshared pair of electrons(not bonding to the other atoms)

This condition usually occurs in covalent bonds

As we know, the bond between Ca, which is a group 2 (metal) with Sulfur in group 16, is an ionic bond because it occurs between metal and non-metal ions, so there is no sharing of electrons, but there is a release of electrons from Ca ions to S ions to form an octet. , so all the valence electrons in S are paired

7 0

3 years ago