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3 years ago

Compare the solubility and melting points of ethane, ethanol, and ethanoic acid. Explain

1 answer:

3 0

Ethane is a hydrocarbon with the chemical formula C2H6. It has a melting point of -297.9 F and a solubility of 56.8 mgL-1. Ethane is a gas at standard temperature and is not soluble in water. Ethanol has the formula C2H5OH and is soluble in organic solvents and water. It has a melting point of -173.4 F. Ethanoic acid is soluble in water but not as soluble as ethanol. It has a melting point of 61.9 F.

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A warning label is required to provide set information. The following list contains only some of this required information. What

antoniya [11.8K]

Labels for a hazardous chemical must contain:
• Name, Address and Telephone Number
• Product Identifier
• Signal Word
• Hazard Statement(s)
• Precautionary Statement(s)
• Pictogram(s)

So the answer is product identifier.

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3 years ago

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A compound is determined to have the empirical formula C2OH4. If the molar mass of the compound is 132 g/mol, determine the mole

8_murik_8 [283]

Answer: The molecular formula will be $C_6O_3H_{12}$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Empirical weight of $C_2OH_{4}$ is $12\times 2+16\times 1+1\times 4=44g$

Molecular mass of compound is = 132 g

Now we have to calculate the molecular formula.

$n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{132}{44}=3$

The molecular formula will be= $3\times C_2OH_4=C_6O_3H_{12}$

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3 years ago

How does radioactive isotopes decay?

aksik [14]

They can decay through one of three ways:
alpha decay
beta decay and
gamma decay
ALPHA- particle with two neutrons and two protons is ejected from the nucleus of the radioactive atom. this particle released is called an alpha particle. Only occurs with heavy metals.
BETA- pretty much when a proton is transformed into a neutron, or vise versa. in a beta minus decay, the nuetron decays into a proton and in a beta plus decay, a proton decays into a neutron
GAMMA- the nucleus changes from a high energy state to a low energy state by releasing electromagnetic radiation (photons). the number of protons and neutrons stay the same during this reaction therefore the element is still the same.

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4 years ago

Question 5

Stolb23 [73]

Answer:

There are 17.64% students received B+ grades.

Explanation:

It is given that,

Total number of students in chemistry class is 17

We need to find the percentage received by B+.

Number of students having B+ grades are 3 (from graph)

Required percentage = $P=\dfrac{3}{17}\times 100=17.64\%$

So, there are 17.64% students received B+ grades.

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3 years ago

IF CORRECT YOU WILL GET BRAINLIEST

Scorpion4ik [409]

Answer:

C 5 mol A; 6 mol B

Explanation:

eto po answer ko sana makatulong

3 0

3 years ago

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