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Snezhnost [94]
3 years ago
10

Please Help 8-9!!!!!!!

Chemistry
2 answers:
Mariana [72]3 years ago
7 0
Water vapor is the melting proses.im in 5th grade and i know this
Airida [17]3 years ago
3 0
Hopefully this will help Im pretty sure this is the answer

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If the equilibrium concentration of CO is 3.4 × 10–1 M, and the equilibrium concentration
Irina18 [472]

Answer:

4.1M = [CH₃OH]

Explanation:

The equilibrium produced for the reaction between CO and H₂ to form CH₃OH is:

CO + 2 H₂ ⇄ CH₃OH

Where Keq is defined as:

Keq = 26 = [CH₃OH] / [CO] [H₂]²

<em>For concentrations in equilibrium</em>

Replacing in Keq the equilibrium concentrations of CO and H₂, the equilibrium concentration of CH₃COOH is:

26 = [CH₃OH] / [3.4x10⁻¹M] [6.8x10⁻¹M]²

<em>4.1M = [CH₃OH]</em>

5 0
4 years ago
Read 2 more answers
For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv
My name is Ann [436]

Answer: Marcia made a more concentrated salt solution.

Explanation:

Marcia used 1 kg of salt, which the exercise tells us is 2.2 lb.

She dissolved it in 3L of water, so we have to find out how much that is in pints. We do that using cross multiplication.

If 1L equals 2.11 pints, then

xpints / 3L = 2.11pints / 1L, so

xpints = (3L . 2.11pints) / 1L = 6.33 pints

Now we know she dissolved 2.2lb in 6.33 pints of water. We use cross multiplication again to find out how much salt she would have in 10 pints, so we can know how concentrated it is compared to Bobby's solution, which is 10 pints.

xlb / 10pints = 2.2lb / 6.33pints

xlb = (10pints . 2.2lb) / 6.33pints = 3.47lb

So Marcia has a concentration of 3.47lb per 10 pints, whereas Bobby only has 3lb per 10 pints.

8 0
3 years ago
In the manufacturing process of sulfuric acid, sulfur dioxide is reacted with oxygen to produce sulfur trioxide. Using the equat
artcher [175]

Answer:do you still need help ?

Explanation:

5 0
3 years ago
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A chemist pumps hydrogen gas (h2) from a tank into a reaction vessel containing 0.734 mol o2. the gases react to form water. if
fgiga [73]
Hydrogen + oxygen -> water

2H2 + O2 -> 2H2O (balanced)

2 moles of hydrogen gas will react with 1 mole of oxygen to produce 2 moles of water.

following that ratio, 0.734 mole of oxygen must need 0.734 × 2 moles of hydrogen to fully react.

answer is 1.468 moles of hydrogen.
6 0
4 years ago
Read 2 more answers
lava is a hot liquid rock. when lava flows over solid ground beneath it increases in temperature. what happens to the molecules
MatroZZZ [7]

Answer:

Lava is hot liquid rock. When lava flows over solid ground, the solid ground beneath it increases in temperature. What happens to the molecules in the solid ground when the temperature is increasing? The energy of the molecules in the ground decreases.

7 0
3 years ago
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