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m_a_m_a [10]
3 years ago
13

please help i dont get chemistry as much as I've only just started and I dont know how to separate all these matters ​

Chemistry
1 answer:
dsp733 years ago
6 0

is this technical chemistry?

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How plants adapt to temperature variation
natita [175]
Answer: One major strategy by which plants adapt to temperature change is to decrease the degree of unsaturation of membrane lipids under high temperature and increase it under low temperature. ... This pattern of changes in membrane lipids was distinct from that occurring during slow alterations in temperature.

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Hydrogen sulfide gas reacts with oxygen to produce sulfur dioxide gas and water according to the balance equation:
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2 mol of H2S react with 3 mol of O2

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How many sulphur atoms are there in 0.125 moles of sulphur
denpristay [2]

Explanation:

There are 6.022x1023 molecules in 1 mole of SO3 (Avogadro's number) so in 0.25 moles, there are (0.25)(6.022x1023) molecules in the 0.25 moles of SO3. or 1.506x1023 molecules per 0.25 moles of SO3.

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6 0
3 years ago
Which of the following describes a reaction that reaches equilibrium?
alexandr1967 [171]

Answer:The product and reactants reach a final, unchanging level.

8 0
3 years ago
How much energy would be produced from the reaction of 2.40 moles hydrogen with 3.95 moles chlorine? ___ H2 + ___ Cl2 ___ HCl ΔH
True [87]

Answer:

How much energy would be produced from the reaction of 2.40 moles hydrogen with 3.95 moles chlorine?

H_2 +  Cl_2 -> 2HCl ,  deltaH = -554 kJ

Explanation:

Given,

2.40 moles hydrogen reacts with 3.95 moles chlorine.

From the balanced chemical equation,

1mol. of H2 reacts with 1mol. of Cl2

then,

2.40mol. of H2 reacts with ----?mol of Cl2

=>2.40 mol. H2 * \frac{1mol. Cl2}{1mol. H2} \\=2.40 mol. Cl2

So, the remaining moles of Cl2 is in excess.

The limiting reagent is--- H2.

1mol. of H2 releases --- 554kJ of energy

then,

2.40mol of H2 releases ---- ?

=>2.40mol * \frac{554kJ}{1 mol.} \\=1329.6kJ

Answer is: deltaH =-1329.6kJ

3 0
3 years ago
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