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bogdanovich [222]
3 years ago
13

Suppose you have samples of three unknown solids. Explain how you could use their properties to

Chemistry
1 answer:
alexandr402 [8]3 years ago
7 0

Answer:https://es.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:properties-of-solids/v/ionic-solids

Explanation:

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What is the balanced equation for Sodium reacts with water to form sodium hydroxide and hydrogen gas?
pogonyaev
2Na+2H2O --->  2NaOH + H2
8 0
3 years ago
PLEAAAASE HELP CHEM
alukav5142 [94]

Answer:

5. +5

6. +7

Explanation:

The oxidation state can be obtained as follow:

5. Oxidation state of oxygen, O = –2

Oxidation state of phosphorus, P =?

P3O10 = –5

3P + 10O = –5

3P + (10 x –2) = –5

3P – 20 = –5

Collect like terms

3P = –5 + 20

3P = 15

Divide both side by 3

P = 15/3

P = +5

Therefore, the oxidation state of P in P3O10^5- is +5

6. Oxidation state of oxygen, O = –2

Oxidation state of manganese, Mn =.?

Mn2O7 = 0

2Mn + 7O = 0

2Mn + (7 x –2) = 0

2Mn – 14 = 0

Collect like terms

2Mn = 14

Divide both side by 2

Mn = 14/2

Mn = +7

Therefore, the oxidation state of Mn in Mn2O7 is +7

4 0
3 years ago
What is the halogen in period 5?? it has six letters
Misha Larkins [42]
Simple,

take a look at your periodic table, if you have it labeled look at the Halogen

Group, it includes: Flourine, Chlorine, Bromine, Iodine, and Astatine.

Now, a period on the periodic table is read from left to right, and goes

down the rows of the periodic table.

Go to Period 5, go all the way to the Halogens, what is there? 

Iodine.

Thus, your answer.
8 0
3 years ago
Matter is made up of tiny particles that are too small to be seen with the naked eye. These tiny particles are known as _______.
Tanya [424]

The answer is C. Atoms

4 0
4 years ago
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For an endothermic reaction at equilibrium, the addition of a catalyst
Tatiana [17]

Answer:

causes no shift

Explanation:

6 0
3 years ago
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