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Tju [1.3M]
3 years ago
13

This table shows how the number of kingdoms has

Chemistry
2 answers:
daser333 [38]3 years ago
4 0

Answer:

the answer is 5

Please vote. Brainiest

Explanation:

Softa [21]3 years ago
3 0

Answer:5

Explanation:

You might be interested in
Name for this compound Ag2O
Andrew [12]

it is silver oxide my friend mark as brainlest t

tthanxxxxx

silver oxide

Silver oxide is the chemical compound with the formula Ag₂O. It is a fine black or dark brown powder that is used to prepare other silver compounds

4 0
3 years ago
Read 2 more answers
Please help!
inysia [295]

Answer:

NH3 —> base

We will see ammonia attach itself to silver and not the other way around, silver therefore accepts electrons. So, silver is a Lewis acid and ammonia is a Lewis base, so this reaction is complex as ammonia reacts with the silver cation .

Any group that contains an empty orbital in its valence shell can be considered a Lewis acid, but the bases do not differ in the Brønsted system from those in the Lewis system. Thus, acids are divided into types, including:

Simple Cations

Theoretically, they can be considered as acids and therefore we can also expect their acidic strength to increase for the following reasons:

1. By increasing the positive charge on the cation.

2. Increasing the charge of the nucleus from one atom to another in any period in the periodic table.

3. By decreasing the radius of the cation.

4. Decrease in the number of electron shells in the cation.

Therefore, the acidity of cations of any chain of transition elements increases with increasing atomic number when their positive charge is equal. There are some examples that show the reaction of cations as Lewis acids:

A) the reaction of the silver ion with ammonia

b) aluminum ion hydration

c) Adding alcohol to the lithium ion

D) formation of a ferric cyanide ion

I hope I helped you^_^

7 0
3 years ago
Can anyone please tell me the answer?​
cricket20 [7]

Answer:

1=4

2=2

3=hydrogen bonding

4=SO2 is reduced to Sulphur

Explanation:

<h2>I am trying my best okay.</h2>
8 0
3 years ago
Copper(II) sulfate pentahydrate, CuSO4 ·5 H2O, (molar mass 250 g/mol) can be dehydrated by repeated heating in a crucible. Which
prohojiy [21]

Answer:

The water lost is 36% of the total mass of the hydrate

Explanation:

<u>Step 1:</u> Data given

Molar mass of CuSO4*5H2O = 250 g/mol

Molar mass of CuSO4 = 160 g/mol

<u>Step 2:</u> Calculate mass of water lost

Mass of water lost = 250 - 160 = 90 grams

<u>Step 3:</u> Calculate % water

% water = (mass water / total mass of hydrate)*100 %

% water = (90 grams / 250 grams )*100% = 36 %

We can control this by the following equation

The hydrate has 5 moles of H2O

5*18. = 90 grams

(90/250)*100% = 36%

(160/250)*100% = 64 %

The water lost is 36% of the total mass of the hydrate

8 0
3 years ago
Please- why does my lesson have no information on what's in my assignment. anyways, please help :')
taurus [48]

Answer:

the answer is 55 cg/L

Explanation:

Knowing the conversions, there is 100 cg in one g. if there is .55 g/mL then you multiply by a 100 to get 55 cg/L.

4 0
3 years ago
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