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Brut [27]
3 years ago
5

What is the 3 largest planet

Chemistry
2 answers:
lorasvet [3.4K]3 years ago
7 0
Uranus.

This is the answer.
guapka [62]3 years ago
6 0

Answer: Jupiter

Explanation: 43460 mile radius

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20) If a single gram of sugar contains 4 Calories of energy, what is the Calorie content from a serving of cereal that
Zanzabum
Answer:
36.8
Explanation:
Because 9.2 x 4 = 36.8
8 0
2 years ago
So I saw this question: If 28.0 grams of Pb(NO3)2 react with 18.0 grams of NaI, what mass of PbI2 can be produced? Pb(NO3)2 + Na
Nataly_w [17]

mass of PbI₂ = 27.6606 g

<h3>Further explanation</h3>

Given

Pb(NO₃)₂ + NaI → PbI₂ + NaNO₃

28.0 grams of Pb(NO₃)₂ react with 18.0 grams of NaI

Required

mass of PbI₂

Solution

Balanced equation

Pb(NO₃)₂ + 2NaI → PbI₂ + 2NaNO₃

The principle of a balanced reaction is the number of atoms in the reactants = the number of atoms in the product

mol Pb(NO₃)₂ :

= 28 : 331,2 g/mol

= 0.0845

mol NaI :

= 18 : 149,89 g/mol

= 0.12

Limiting reactant : mol : coefficient

Pb(NO₃)₂ : 0.0845 : 1 = 0.0845

NaI : 0.12 : 2 = 0.06

NaI limiting reactant (smaller ratio)

mol PbI₂ based on NaI

= 1/2 x 0.12 = 0.06

Mass PbI₂ :

= 0.06 x 461,01 g/mol

= 27.6606 g

4 0
3 years ago
A rub-
lidiya [134]
Because it’s possible for the book to fall but it’s not yet falling if u understand
8 0
2 years ago
Nickel (II) oxide reacts with carbon monoxide to form nickel metal. CO(g) + NiO(s) ⇄ CO2(g) + Ni(s) Kp = 20 at 873 K If a reacti
ozzi

Answer:

Explanation:

Hello,

Based on the statement of the equilibrium law:

Kp=\frac{P_{CO_2}^{EQ}}{P_{CO}^{EQ}}

By increasing (doubling) the amount of carbon monoxide, the production of nickel will increase since its amount is directly proportional with its pressure, so, by adding more reactant (in this case carbon monoxide), the equilibrium is rightward shifted based on Le Châtelier's principle even when solid either reactants or products are not contemplated in the equilibrium law.

Best regards.

4 0
3 years ago
2
olasank [31]

Answer:

mass(m)=26.4g

volume (v)=3.0cm²

we have

density =m/v=26.4/3=8.8g/cm³

since it is equal to density of nickel.

<u>Option C nickel</u> is a required answer.

5 0
3 years ago
Read 2 more answers
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