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Reptile [31]
3 years ago
13

How many moles of hydrogen are produced from the reaction of 50.0 g of Mg and the equivalent of 75 g of HCl?

Chemistry
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

1.03 mol of dihydrogen gas will evolve, with a volume slightly over

22.4 dm^{3} at STP.

Explanation:

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Advocard [28]

Answer:

Rain forest.

Explanation: Because of how humid it is in a rain forest that humidity will bring a lot of pressure from above.

7 0
2 years ago
Read 2 more answers
how can you find the Frequency if you only have the wavelength? can you solve this example what is the Frequency of the waveleng
DiKsa [7]

Answer:

75000 Hz

Explanation:

f = V / λ (f= frequency, v=velocity of wave, lambda= wavelength)

alternatively, f = c / λ (f= frequency, c= speed of light- 3.00x10^8 m/s, lambda= wavelength)

f= [3.00x10^8 m/s]/[4000 m]

=75000 Hz

3 0
3 years ago
Made up of the protons and neutrons, this part or the atom contains nearly all the mass of the atom
Sonja [21]

Answer:

The nucleus

Explanation:

3 0
3 years ago
What type of energy moves from warmer to cooler?
stich3 [128]

Answer:

Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas.

Explanation:

8 0
2 years ago
In the investigation "Comparing the Effects of the Products of Cellular Respiration
Marianna [84]

The solution changed color because the substances are not neutral.

<h3>pH</h3>

Chemical substances have different concentrations of the hydrogen cation, called PH.

The higher the pH, the more basic the substance, and the lower the more acidic.

Bromothymol blue is a pH indicator that changes its color according to the pH of the substance, yellow for acid, blue for basic and green for neutral.

In the case of the reactions in question, we have the release of CO2 (acid) in combustion and in cellular respiration, changing the color of bromothymol blue to yellow.

Learn more about pH in: brainly.com/question/491373

3 0
2 years ago
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