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vaieri [72.5K]
3 years ago
15

The directness of the sunlight at a specific latitude will determine the amount of solar energy that latitude receives. Please s

elect the best answer from the choices provided T F
Chemistry
1 answer:
frez [133]3 years ago
4 0

Answer:

True

Explanation:

The amount of solar energy a particular place receives is directly dependent on the directness of the sunlight. This is like this because the more direct the sunlight is , the more concentrated at smaller area it is, thus warming the area more, and the less direct the sunlight is, the more dispersed the sunlight is, and the area is heated much less. The directness of the sunlight depends on the inclination of the Earth, as well as the shape of the Earth. The inclination makes certain areas be more exposed to the sunlight in part of the year, and than be less exposed in the other part of the year. The shape of the Earth is directly influencing the angle by which the sunlight falls, the lower the latitude, the more direct the sunlight, the higher the latitude, the less direct the sunlight.

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Elemental analysis of the unknown gas from part a revealed that it is 30.45% n and 69.55% o. what is the molecular formula for t
Gnesinka [82]

Assuming we have 100 g of sample

30.45/MW of N 14g = 2.175

69.55/MW of O 16g = 4.34

4.34/2.185 = 2

for every 1 mole of N we have 2 moles of O

so the empirical formula would be NO2

without having the molecular weight of the entire molecule the molecular formula can not be determined with the information in your question

6 0
3 years ago
In the equation N2(g) + 3H2(g)--- 2NH3(g), how many liters of hydrogen
Delicious77 [7]

Answer:

30 L H2

Explanation:

  • 10 L N2 x <u>3 L H2</u> = 30 L H2

.                         1 L N2

Try to verify my answer, Stoichiometry is not easy for me.

3 0
3 years ago
Read 2 more answers
1. Complete the balanced dissociation equation for the compound below. If the compound does not dissociate, write NR after the r
puteri [66]

Answer:

1. (NH₄)₂S(s) -----> NH₄+(aq) + S²-(aq)

2. Al³+ (aq) + PO₄³+ (aq) ----> AlPO₄ (s)

Explanation:

The dissociation of ammonium sulphide, (NH₄)₂S when dissolved in water is given in the equation below:

(NH₄)₂S(s) -----> NH₄+(aq) + S²-(aq)

However very little S²- ions are present in solution due to the very basic nature of the S²- ion (Kb = 1 x 105).

The ammonium ion being a better proton donor than water, donates a proton to sulphide ion to form hydrosulphide ion which exists in equilibrium with aqueous ammonia.

S²- (aq) + NH₄+ (aq) ⇌ SH- (aq) + NH₃ (aq)

Aqueous solutions of ammonium sulfide are smelly due to the release of hydrogen sulfide and ammonia, hence, their use in making stink bombs.

2. The reaction between aluminium nitrate and sodium phosphatein aqueous solution is a double decomposition reaction whish results in the precipitation of insoluble aluminium phosphate. The equation of the reaction is given below :

Al(NO₃)₃ (aq) + Na₃PO₄ (aq) ----> AlPO₄ (s) + 3 NaNO₃ (aq)

The net ionic equation is given below:

Al³+ (aq) + PO₄³+ (aq) ----> AlPO₄ (s)

7 0
3 years ago
Write the name for: Mg3O2
sveticcg [70]

Answer:

you sure it is the right sign your using

4 0
2 years ago
The volume of a sample of oxygen is 200.0 mL when the pressure is 3.000 atm and the temperature is 37.0 oC. What is the new temp
attashe74 [19]

Answer:

Explanation:

Given:

V1 = 200 ml

T1 = 20 °C

= 20 + 273

= 293 K

P1 = 3 atm

P2 = 2 atm

V2 = 400 ml

Using ideal gas equation,

P1 × V1/T1 = P2 × V2/T2

T2 = (2 × 400 × 293)/200 × 3

= 234400/600

= 390.67 K

= 390.67 - 273

= 117.67 °C

7 0
3 years ago
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