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Mademuasel [1]
3 years ago
12

How many moles of hydrogen molecules (h2) would be required to produce two moles of hydrogen peroxide (h2o2)?

Chemistry
1 answer:
SashulF [63]3 years ago
3 0
Their should be two molecules of hydrogen (h2) to produce 2 moles of h2O2
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Determine the mass of water in kg, if 4300 cal of energy is placed in water, resulting in a temperature change to 101.0 oC from
Airida [17]

Answer:

0.5059kg

Explanation:

The heat absorbed for the water is determined using the equation:7

Q = C×m×ΔT

<em>Where Q is heat absorbed (4300cal)</em>

<em>C is specific heat (1cal/g°C)</em>

<em>m is the mass in grams</em>

<em>ΔT is change in °C (101.0°C - 92.5°C = 8.5°C)</em>

<em />

Replacing:

4300cal = 1cal/g°C×m×8.5°C

505.9g = m

In kg, the mass of water is:

<h3>0.5059kg</h3>

<em />

6 0
3 years ago
In general, if a reaction is spontaneous, the reactants possess more free energy than the products.
Inga [223]

In general, if a reaction is spontaneous, the reactants possess more free energy than the products.  

<u>TRUE  </u>

FALSE

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What system is responsible for transporting food, waste, and gases throughout the body?
Tju [1.3M]
Digestive I think, that transfers food.
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Why does lithium form only lithium oxide and not peroxide or superoxide ​
Alexandra [31]

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Lithium does form a peroxide as well as an oxide on burning in air and I suspect the low temperature reaction with air forms a significant amount of peroxide.

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Solid iron metal reacts with solid sulfur at room temperature to produce solid iron (ll) sulfide? Express as a chemical equation
kupik [55]
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Hope this helps
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