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otez555 [7]
2 years ago
10

Question 2 Which models of the atom from task 1 are not supported by Rutherford’s experimental evidence? For each of these mod

els, explain the experimental results that the model would predict.
Chemistry
1 answer:
kirill115 [55]2 years ago
8 0

Answer:

Sorry I don't know.

Explanation:

I'm only in middle school.

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Silicon carbide, SiC, is commonly known as carborundum. This hard substance, which is used commercially as an abrasive, is made
mrs_skeptik [129]

Mass of SiC = 2 g

<h3>Further explanation</h3>

Given

Reaction

SiO₂(s) + 3C(s) → SiC(s) + 2CO(g)

3.00 g of SiO₂

4.50 g of C

Required

mass of SiC

Solution

mol SiO₂ (MW=60,08 g/mol) :

= 3 g : 60.08 g/mol

= 0.0499

mol C(Ar = 12 g/mol) :

= 4.5 g : 12 g/mol

= 0.375

mol : coefficient of reactants =

SiO₂ : 0.0499/1 = 0.0499

C : 0.375/3 = 0.125

SiO₂ as a limiting reactant(smaller ratio)

Mol SiC based on mol SiO₂ = 0.0499

Mass SiC :

= mol x MW

= 0.0499 x 40,11 g/mol

= 2 g

3 0
3 years ago
The chemical formula for sodium sulfate is Na2SO4. How many sulfur atoms are in the formula for sodium sulfate?
Gemiola [76]

Answer:

1

Explanation:

there is only one sulphur (S) atoms in the formula for sodium sulphate

5 0
3 years ago
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What is the difference between a rock and a mineral ? Plz only (1-2 sentence) thx sm!
Tasya [4]

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

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3 years ago
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Diano4ka-milaya [45]

Answer:

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Explanation:

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