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3 years ago

What type of volcano is mt. Etna?!?! Also, how was it formed?

Chemistry

2 answers:

Korolek [52]3 years ago

6 0

Answer; mount Etna is stravolcano, so it was formed on between European and African plates

posledela3 years ago

3 0

Mount Etna is a stratovolcano, it was formed on a boundary between the European and African plates.

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Review

ZanzabumX [31]

Answer:

1. Gold is valuable because of its high quality physical and chemical properties

2. The gold mines where the state's property in both Egyptian and Roman civilizations

3. The elixir of life is akin to the philosopher stone. It is a chemical portion that when drank, grants eternal life

4. The contribution of alchemists to modern chemistry, includes the formulation of the first ideological periodic table, the distillation process, metalworking, gunpowder, glass, ink, paints, cosmetics and many other innovations

Explanation:

7 0

2 years ago

Which of the following must be true about a reaction if it is only spontaneous at high temperatures?

Neporo4naja [7]

The correct answer is B,
<span>It is endothermic, with both positive enthalpy and entropy changes.</span>

4 0

2 years ago

Calculate the value of [CH3OH][CO][H2]2 when all concentrations are 2.4. Keep in mind that the reaction may not be at equilibriu

NikAS [45]

Explanation:

The given reaction will be as follows.

$CO + 2H_{2} \leftrightharpoons CH_{3}OH$

So, equilibrium constant for this equation will be as follows.

$K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}$

As it is given that concentration of all the species is 2.4. Therefore, calculate the value of equilibrium constant as follows.

$K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}$

= $\frac{2.4}{2.4 \times (2.4)^{2}}$

= 0.173

Thus, we can conclude that equilibrium constant for the given reaction is 0.173.

3 0

3 years ago

1. How many molecules of H,O are in 4.32 moles?

Korvikt [17]

Answer:

dont know

Explanation:

8 0

3 years ago

Can someone who expert in chemistry be my personal tutor? I'm so desperate

lions [1.4K]

Yes..? I don’t understand what you’re trying to ask mate.

5 0

3 years ago