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Setler79 [48]
3 years ago
12

In general which way does wind blow

Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0

well the wind can blow any direction depending on the ocean. the ocean is going North and is really wavy. there will be a lot of wind and going North,

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Which of earths layers is a liquid
Nikitich [7]

Explanation:

the inner core is solid. the outer core is liquid

6 0
2 years ago
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What can be said about an endothermic reaction with a negative entropy change?
zvonat [6]
The statement is false because endothermic reactions have a positive enthalpy change, because heat is being added to the system because it requires more energy to react
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3 years ago
N2H4 + N2O4 --> N2 + H2O
ahrayia [7]

Answer:

  1. The limiting reagent is N2O4
  2. 14,09g

Explanation:

  • First, we adjust the reaction.

2N_{2} H_{4} + N_{2} O_{4} ⇄6N_{2} +  4H_{2}O

  • Second, we assume that the participating moles are equal to the stoichiometric ratios because we do not know the amounts of the reagents.

We can determinate what is the limiting reagent comparing of product amounts which can be formed from each reactant.

Using N_{2} H_{4} to form H_{2}O

               molH_{2} O = 1mol N_{2} H_{4} } . \frac{4 mol H_{2} O}{2mol N_{2} H_{4} }. \frac{18\frac{g}{mol}  H_{2} O}{1mol H_{2} O_} } . \frac{ 1 mol N_{2}H_{4}  }{32,04\frac{g}{mol}  N_{2} H_{4} }

                                           molH_{2} O = 1, 125 mol

Using N_{2} O_{4} to form H_{2} O

              molH_{2} O = 1mol N_{2} O_{4} } . \frac{4 mol H_{2} O}{1mol N_{2} O_{4} }. \frac{18\frac{g}{mol}  H_{2} O}{1mol H_{2} O_} } . \frac{ 1 mol N_{2}O_{4}  }{92\frac{g}{mol}  N_{2} O_{4} }

                                           molH_{2} O = 0,783 mol

The limiting reagent is N2O4, because can produce only 0, 783 mol of H2O.

This is the minimum measure can be formed of each product.

∴                          MassOfH_{2}O = 0,783mol . 18\frac{g}{mol}

                                      MassOfH_{2}O = 14,09g

5 0
3 years ago
An atom of copper (cu) has a mass number of 63 and an atomic number of 29. how many protons does it have?
Galina-37 [17]
The total number of protons in Copper is 29. 
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Why is lithium used in the body?
Veronika [31]

Answer:

Lithium is used to treat mania that is part of bipolar disorder (manic-depressive illness). It is also used on a daily basis to reduce the frequency and severity of manic episodes.

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