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Ulleksa [173]
3 years ago
9

Please do question 20 (help)

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
7 0

the rhino is A and the horse is B because if you see A and the rhino they're big. its logical

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Assuming that both cases describe hydrogen‑like atoms with one electron, for which case is more energy emitted or absorbed?
Nana76 [90]

Assuming that both cases describe hydrogen‑like atoms with one electron, More energy is emitted or absorbed for case 2. The correct option is D.

<h3>What is emitting of energy, by electron?</h3>

The energy of the electron decreases as it changes levels, and emission of photons happens in the atom.

With the electron moving from a higher to a lower energy level, the photon is emitted. The photon's energy is the same as the energy lost by an electron moving to a lower energy level.

Thus, the correct option is D, More energy is emitted or absorbed for case 2.

Learn more about emitting of energy

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5 0
2 years ago
Hey there! so I have this question in chemistry where they have shown a reaction with Ammonia acid and HCL, so the question to e
lozanna [386]

What the I haven't even learned this yet

5 0
4 years ago
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Abiotic factors are no living part of an environment. True or False​
oksian1 [2.3K]

Answer:

true

Explanation:

abiotic means nonliving and biotic means living

6 0
3 years ago
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Will Maynez burns a 0.6-g peanut beneath 50 g of water, which increases in temperature from 22°C to 50°C. (The specific heat cap
Neko [114]

Answer:

40% of  the energy release by the peanut is 3500 calories

Explanation:

One calorie is defined as the amount of energy required to increase the temperature of one gram of water for one degree Celsius (or one Kelvin)

Equation for energy gain by water is

Q = mcΔT

where, m is the mass of the object

c is the specific heat capacity

ΔT is the change in temperature

c =  1.0 cal/g?°C.

m = 50 g

ΔT = 50°C - 22°C

    = 28°C

Q = (50)× (1)× (28)

  = 1400calories

The peanut contain 1400calories of energy .

amount that 40% of energy is released to water ,

so,

Q = 1400 calories / 0.4

= 3500 calories

Therefore, 40% of  the energy release by the peanut is 3500 calories

7 0
3 years ago
Describe how adding the prefix mega to a unit affects the quantity being described
neonofarm [45]

If the prefix mega is added to the unit of the quantity being described, the magnitude of quantity increases by 10^{6} times i.e. 1 million times.

For Example- 1 MW = 1000000 watts


5 0
3 years ago
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