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drek231 [11]
3 years ago
12

4 NH3 (g) + 7 O2 (g) 4 NO2 (g) + 6 H2O (g)

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
3 0

Answer:

21

Explanation:

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What do you think causes a lunar eclipse? (Use your knowledge of solar eclipses and feel free to run the Gizmo to help you.)
zhenek [66]

Moon reflects the light frim the sun, thats why we are able to see it and it shines in the night. But, we know that Earth revolves around Sun and Moon revolves around Earth. During this revolution, Earth and Moon comes in a position when Earth is in the middle of the Moon and Sun. So, it blocks the light of Sun frim reaching Moon. Hence, we see no reflection and it causes Lunar eclipse.

7 0
3 years ago
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A sugar solution is 15% pure. How
Arada [10]

Answer:

Amount of sugar in solution = 82.5 gram

Explanation:

Given:

Sugar in solution percentage = 15%

Total solution = 550 grams

Find:

Amount of sugar in solution

Computation:

Amount of sugar in solution = Sugar in solution percentage x Total solution

Amount of sugar in solution = 15% X 550

Amount of sugar in solution = 82.5 gram

8 0
3 years ago
Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1400 K (TH) to a cold reservoir at 600 K. Calculate
klasskru [66]

Answer:

ΔS = - 0.125 Kj/K decreased entropy

Explanation:

From ΔH = TΔS => ΔS = ΔH/T

= 100Kj/(600K - 1400K) = - 188Kj/800K = - 0.125 Kj/K

Entropy in the cooler flask would have 'decreased' (i.e.; more ordered state) at 600K.

6 0
3 years ago
Scientific models can never be changed. Please select the best answer from the choices provided T F
docker41 [41]
False, because new information is being discovered all the time so they add the new information to the models to make them accurate.
7 0
3 years ago
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Arrange the isotopes of chlorine and sulfur in order of decreasing number of neutrons. Rank the isotopes from most to fewest neu
Tomtit [17]

The question is incomplete, the complete question is;

Arrange the isotopes of chlorine and sulfur in order of decreasing number of neutrons. Rank the isotopes from most to fewest neutrons. To rank items as equivalent S-33,S-36,S-34,Cl-35,S-32,Cl-37

The isotopes of sulphur arranged in order of decreasing number of neutrons is; S-36, S-34, S-33, S-32. The isotopes of chlorine arranged in order of decreasing number of neutrons is; Cl-37, Cl-35.

Isotopes are atoms of the same element having different mass numbers but the same atomic number.

Isotopes differ in their number of neutrons. The number of neutrons is obtained by subtracting the atomic number of an isotope from its mass number.

The number of neutrons in the isotopes of sulphur are;

S-36 (20 neutrons)

S-34 (18 neutrons)

S-33 (17 neutrons)

S-32 (16 neutrons)

The number of neutrons in the isotopes of chlorine are;

Cl-37 (20 neutrons)

Cl-35 (18 neutrons)

Learn more: brainly.com/question/13214440

4 0
3 years ago
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