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2 years ago

Which action could cause a sample of liquid to boil?

Chemistry

2 answers:

bija089 [108]2 years ago

8 0

B I’m pretty sure this is right

bearhunter [10]2 years ago

4 0

Answer:

b i think.

Explanation:

good luck sorry if it is not correct

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Part b select the ester that is formed when propanoic acid reacts with isopropyl alcohol in the presence of heat and an acid cat

Otrada [13]

<span>The ester that is formed by combining propanioc acid with isopropyl alcohol, using heat and an acid catalyst is isopropyl propanoate.</span>

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2 years ago

I need help on question 3 true or false thxxx quick i’m timed

ruslelena [56]

Answer:

The answer is true.

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2 years ago

_P4 + ____O2 → __P2O3<br><br> How do I balance this equation?

Murljashka [212]

Explanation:

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2 years ago

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A 0.75M solution of CH3OH is prepared in 0.500 kg of water. How many moles of CH3OH are needed?

4vir4ik [10]

Answer:

We need 0.375 mol of CH3OH to prepare the solution

Explanation:

For the problem they give us the following data:

Solution concentration 0,75 M

Mass of Solvent is 0,5Kg

knowing that the density of water is 1g / mL, we find the volume of water:

$d = \frac{g}{mL} \\\\ V= \frac{g}{d} = \frac{500g}{1 \frac{g}{mL} } = 500mL = 0,5 L$

Now, find moles of $CH_{3} OH$ are needed using the molarity equation:

$M = \frac{ moles }{ V (L)} \\\\\\molesCH_{3}OH = M . V(L) = 0,75 M . 0,5 L\\\\molesCH_{3}OH = 0,375 mol$

therefore the solution is prepared using 0.5 L of H2O and 0.375 moles of CH3OH, resulting in a concentration of 0,75M

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2 years ago

Which corresponds to the composition of the ion typically formed by magnesium?

nekit [7.7K]

The ion composition of Magnesium is 12,10, 2+.
Magnesium is a chemical element with symbol Mg and an atomic number 12, it has 12 protons, and 12 electrons with a chemical configuration of 2:8:2. It requires to loose two electrons to form a stable configuration forming a cation (positively charged ion) with a charge of +2 and a configuration of 2:8 ( 12 protons and 10 electrons).

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2 years ago