Does substitution reactions cause haloalkanes?

Convert 105mg to kg

Mashcka [7]

Answer:

0.0001

Explanation:

5 0

3 years ago

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What is the mass of a 300 ml sample of gaseous hydrogen chloride at 2.0 atm and 30c?

kap26 [50]

Use PV = nRT
(2 atm)(.3 liters) = n(8.314 mol*K)(303°K)

.6 = n(2519.142)

Divide by 2519.142

n = .00023818 mols of HCl * 36.46g of HCl/ 1 mol of HCl

Grams of HCl = 0.00868

3 0

3 years ago

Suppose 10 atoms of carbon (C) react with 20 atoms of oxygen (O). According to the Law of Conservation of Matter, how many atoms

vova2212 [387]

Answer:

D 30

Explanation:

whenever there is a reaction, the amount of atoms don't change, because matter can't be created or destroyed. Add the carbon and oxygen atoms together

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3 years ago

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Why does magnesium oxide have a high melting point?

Mandarinka [93]

Magnesium oxide is an ionic compound ( because it consists of a metal and a non-metal)

In ionic compounds, electrons from the outer shell exchange between the atoms so that they each get a full outer shell. Once these electrons are exchange, the atoms will become ions. One ion will have a positive charge, and the other ion will have a negative charge. The positive and negative ions then bond strongly together in a lattice structure, due to the electrostatic forces of attraction.

These electrostatic forces of attraction are very strong and require a lot of energy to break, as such the compound will have a high melting point.

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Now lets look at the ionic bonding between magnesium and oxygen:

In the outer shell of Magnesium, there are 2 electrons.

In the outer shell Oxygen, there are 6 electrons.

Magnesium gives it's two electrons to Oxygen, so that the Oxygen now has a full outer shell of 8 electrons. However, since Oxygen gained two electrons, it will form a negatively charged ion with a charge of -2.

Since Magnesium lost the two electrons, it's second shell (which has 8 eletrons) now becomes the outer shell. So Magnesium also now has a full outer shell. But since it has lost two electrons, it becomes a positively charged ion with a charge of + 2.

The positive Magnesium ion and negative Oxygen ion and now strongly attracted to each other, and form a strong ionic compound (magnesium oxide) with a lattice structure.

The electrostatic forces of attraction between the positive Magnesium and negative Oxygen are so strong that a lot of heat and energy are needed to break them.

Therefore magnesium oxide has a high melting point.

5 0

2 years ago

Balance the following skeleton reactions and identify the oxidizing and reducing agents:(b) CrO₄²⁻(aq) + Cu(s) → CrOH₃(s) + CuOH

andrew-mc [135]

The balanced skeleton reactions are given below

2CrO₄²⁻(aq) + 3Cu(s) +8 $H_{2} O$ (l) → 2Cr(OH)₃(s) + 3Cu(OH)₂(s) + 6 $OH^{-}$ (aq)

The oxidising agent and reducing agents are Cr and Cu .

There are following steps involve in balance redox reaction in basic medium .

First divide the reaction into two half reactions which give oxidation and reduction half reaction.

Then balance the elements other than oxygen and hydrogen atom.

Balance the oxygen atom by adding $H_{2} O$ where number of oxygen is less .

Balance the hydrogen atom by adding $H^{+}$ on another side of where water molecule added.
Add $OH^{-}$ ions to both sides to neutralize $H^{+}$ ion.
Combine $H^{+}$ and $OH^{-}$ ion to make $H_{2} O$ .

Balance the charge by adding $e^{-}$ .

Add the half reaction .

The species which reduces the other species in the redox reaction is called oxidizing agent . Similarly , the species which oxidize the other species in the redox reaction is called reducing agent .

To learn more about reducing agents please click here ,

brainly.com/question/2890416

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4 0

1 year ago