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AfilCa [17]
3 years ago
12

Balance these equations​

Chemistry
2 answers:
Nitella [24]3 years ago
6 0
4Al + 3O2 -> 2Al2O3
2N2 + 6H2 -> 4NH3
kiruha [24]3 years ago
5 0

Answer:

4Al + 3O2 -> 2Al2O3

2N2 + 6H2 -> 4NH3

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Which is the larger atom S or Mg
Vadim26 [7]

Answer:

Mg

Explanation:

If one were comparing just the neutral atoms Mg and S, the S atom would be smaller as both elements are in the same period and sulfur is more to the right

8 0
3 years ago
Which of the following numerical expressions gives the number of particles in 2.0 g of Ne?
mojhsa [17]

Answer:

Number of particles = 2.0 g*(6.0 x 10^23 particles/mol) / 20.18 g/mol

Option C is correct

Explanation:

Step 1: Data give

Mass of Ne = 2.0 grams

Molar mass of neon = 20.18 g/mol

Number of Avogadro = 6.0 *10^23 /mol

Step 2: Calculate number of moles of neon

Moles Ne = Mass of ne / Molar mass of ne

Moles Ne = 2.0 / 20.18 g/mol

Moles Ne = 0.099 moles

Step 3: Calculate nulber of particles

Number of particles = 6.022*10^23 / mol * 0.099 moles = 5.96 *10^22

Number of particles = 6.022*10^23 * (2.0g/ 20.18g/mol)

Number of particles = 2.0 g*(6.0 x 10^23 particles/mol) / 20.18 g/mol

Option C is correct

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Newton's first law of motion, or the law of inertia, states:
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When salt is added to ice the temperature of the ice will even drop or the ice will melt
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