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marusya05 [52]
2 years ago
13

4. One gram of of ............... contains one type of atoms. a. iron b. ammonia c. hydrogen chloride d. water​

Chemistry
1 answer:
patriot [66]2 years ago
7 0

Answer: hydrogen chloride.

Explanation:

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When lightning strikes, nitrogen molecules, n2, and oxygen molecules, o2, in the air react to form nitrates, no3, which come dow
faltersainse [42]
The reaction for what was describe in the problem is:

N₂ + 3 O₂ --> 2 NO₃

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3 years ago
If 3.6 g of aluminum completely reacts, how much Al2O3 (in grams) can be produced
marissa [1.9K]

The amount in grams of  Al₂O₃ produced is approximately 6.80 g.

Aluminium reacts completely with oxygen(air) to produce Al₂O₃. The reaction can be represented with a chemical equation as follows:

AL + O₂ → Al₂O₃

Let's balance it

4AL + 3O₂ → 2Al₂O₃

4 moles of Aluminium reacts with 3 moles of Oxygen molecules to produce 2 moles of Aluminium oxide. Therefore,

Since, aluminium reacts completely, it is the limiting reagent in the reaction. Therefore,

Atomic mass of AL = 27 g

Molar mass of  Al₂O₃ = 101.96 g/mol

4(27 g) of AL gives 2(101.96 g) of  Al₂O₃

3.6 g of AL will give ?

cross multiply

mass of  Al₂O₃ produced = 3.6 × 203.92 / 108   = 734.112 / 108 = 6.797

mass of  Al₂O₃ produced = 6.80 g.

read more: brainly.com/question/23982245?referrer=searchResults

8 0
3 years ago
12-How many elements are in the mixture pictured below?<br> A-7<br> O B-4<br> C-3<br> D-2
vovikov84 [41]

Answer:

C

Explanation:

3

Because you don't count the dots. You count how many colors there are. Which are Blue, Red, and Black.

Hope this helped!

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What's the electron configuration of an N⁻³ ion
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The electronic configuration of n - 3 ion is [He] 2s2 2p3.
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