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kakasveta [241]
2 years ago
13

67.8 grams of hydrogen gas are produced, how many grams of iron were used in this reaction

Chemistry
1 answer:
serious [3.7K]2 years ago
6 0

Answer:

20

because The Last dog is about a teenage boy who wants to venture out of the dome an odd place he has never seen before. As he began to explore around he discovers the harmlessness of the unusual place. As he later comes across a dog found next to his dead mother mother'scorpse. deciding take the dog with him.

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What is the mass of a sample of water that takes 2000 kJ of energy to boil into steam at 373 K. The latent heat of vaporization
Arte-miy333 [17]

Answer:

0.89kg

Explanation:

Q=mL L=specific latent heat

Q=energy required in J

m=mass in Kg

Q=mL

m=Q/L

m=2000000J/2.25 x 10^6 J kg-1

m=0.89kg

3 0
3 years ago
What is the temperature of a water body containing a 90% saturation and 11.5 ppm of dissolved oxygen?
ozzi
Using the chart that has been provided, we may determine water temperature. We do this by drawing a straight line form the bottom scale which has the ppm of oxygen dissolved to the middle scale which has the percentage saturation.

The line starts from 11.5 ppm on the bottom scale and goes to 90% on the middle scale. Next, we continue this line, without changing its slope, to the third scale showing temperature. We see that it crosses the temperature scale at 4°C.

The temperature of the water is 4 °C.
6 0
3 years ago
How does body temperature, energy level, and water level affect a person’s ability to survive?
kifflom [539]
U won’t get hyperthermia or a heat stroke when ur hot u use up more energy but when ur cold u use up less
4 0
2 years ago
In most turbochargers, the lubricating oil comes A. from an internal engine resevoir. B. under pressure through lines in the eng
nlexa [21]
I’m not sure, but I think A. from an internal engine reservoir
8 0
2 years ago
Which statement about carbon dioxide (CO2) is correct?
Zanzabum

Answer:

B

Explanation:

The carbon-oxygen double bond is polar.

However, carbon dioxide is a linear molecule. The two dipoles cancel out each other.

Thus, carbon dioxide is a non polar molecule with polar bond.

6 0
3 years ago
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