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Darina [25.2K]
4 years ago
14

You have an unknown gas. When a glowing splint is placed in it, the splint goes out. Which gas (oxygen, carbon dioxide, or hydro

gen) is it?
Chemistry
1 answer:
maksim [4K]4 years ago
3 0

Hydrogen

Hydrogen is identified by the glowing splint described in the question.

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The asthenosphere is more viscous and thick than the mesosphere<br>TRUE OR FALSE?
Alexxx [7]
I think the answer is true.
7 0
3 years ago
2Fe(s) + O2(g) → 2FeO(s)<br><br><br> To which category does this reaction belong?
Varvara68 [4.7K]

Answer:

Redox reactions

Explanation:

Redox reactions consists of both oxidation and reduction

one species gets oxidised and other species become reduced, both oxidation and reduction happen simultaneously

reduction is either gain of electrons or gain of hydrogen. in reduction the oxidation number of species reduces

in this reaction the reduction half equation is

O₂ + 4e --> 2O²⁻

oxidation is either loss of electrons or gain of oxygen. in oxidation the oxidation number of species increases.

Fe --> Fe²⁺ + 2e

since both these half reactions happen overall its a redox reaction

6 0
3 years ago
An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s/s to reach a speed of 50.0 m/s as it left the bow
nordsb [41]
<h3><u>Answer;</u></h3>

C. 300 N

<h3><u>Explanation</u>;</h3>

From Newton second's Law of motion, the resultant force is directly proportional to the rate of change in momentum.

Therefore;

F = ma ; where F is the resultant force, m is the mass and a is the acceleration.

Therefore;

F = 0.06 kg × 5,000 m/s/s

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8 0
3 years ago
How many H atoms in 2.3 moles of CH4?​
GREYUIT [131]

Answer: 2,3 * 4 = 9,2

Explanation:

If 1 mole CH4 has 4 H atoms 2,3 moles of CH4 will have 9,2 H atoms.

4 0
4 years ago
Which of the following lists objects in order from smallest to largest?
lyudmila [28]

Answer:

C. Moon, Earth, Jupiter, Sun

Explanation:

Well, the moon is smaller than the Earth so, C is the only logical explanation

8 0
2 years ago
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