-ideal gas: a hypothetical gas whose molecules exhibit no interaction and undergo elastic collision with each other and the walls of the container
-macroscopic properties: properties that can be visualized or measured by the naked eye; examples include pressure, temperature, and volume
Answer:
A
Explanation:
The slow step of the reaction is the rate determining step. This means to get the rate law for a chemical activity with slow and fast steps, we have to consider the slow step if we are to write the rate law successfully.
Since the compound NO is reacting with itself, we have to raise the value of the concentration in the square bracket by 2. That is why we have the concentration squared.
<span>Answer: 1.06 moles of molecules = 6.38x10²³ molecules
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<span>Explanation:
</span><span />
<span>1) Balanced chemical equation:
</span><span />
<span>2Na + 2H₂O -> 2NaOH + H₂
</span><span />
<span>2) Mole ratios:
</span><span />
<span>2 mol Na : 2 mol H₂O : 2 mol NaOH : 1 mol H₂
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<span>3) Convert 48.7 g of sodium to moles:
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<span>number of moles = mass in grams / molar mass
</span><span />
<span>molar mass of Na = atomic mass = 23.0 g/mol
</span><span>number of moles = 48.7g / 23.0 g/mol = 2.12 moles of Na</span>
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4) Proportion:
</span><span />
<span>2moles Na/1mol H₂ = 2.12 moles Na / x
</span><span />
<span>x = 2.12 moles Na * 1 mol H₂ / 2 moles Na = 1.06 moles H₂.
</span><span />
<span>5) If you want to convert that to number of molecules you have to multiply by Avogadro's number: 6.022 x 10^²³
</span><span />
<span>1.06 mol x 6.022x10^²³ molecules/mol = 6.38x10²³ molecules</span>
Answer:
a: increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
Explanation:
Answer:
it is a compound it is a solution when they say they are ablle to seperate it give out they did not mix it
Explanation:
