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3 years ago

Name the given compound according to the IUPAC nomenclature

Chemistry

2 answers:

Ostrovityanka [42]3 years ago

4 0

Answer: there are two ways to write the name of the compound and the two ways are generally acceptable

4—Ethly—2,5—hept—diene

4—Ethlyhept—2,5—diene

Explanation:

11111nata11111 [884]3 years ago

4 0

Answer:

$4-ethyl-hept-2,5-diene$

Explanation:

Hello,

In this case, by following the IUPAC rules, we first must number the chain starting by the first left-handed CH₃ and finishing at the last CH₃. In such a way, the radical C₂H₅ which is at the fourth carbon is an ethyl radical as it has two carbons. Moreover, we notice the presence of two double bonds at the second and fifth carbons and a main chain having seven carbons in total, for that reason, the name turns out:

$4-ethyl-hept-2,5-diene$

Best regards.

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Which of the following would be investigated in reaction stoichiometry? Group of answer choices The types of bonds that break an

DENIUS [597]

Answer:

The mass of potassium required to produce a known mass of potassium chloride

Explanation:

Stoichiometry deals with the relationship between amount of substances, mass of substances or volume of substances required in a chemical reaction. Stoichiometric relationships may involve reactants alone or reactants and products. These relationships are normally in the form of simple proportion.

A typical example is our answer option, the mass of potassium required could be used to determine the mass of potassium chloride produced after a balanced reaction equation is written.

7 0

3 years ago

a material has a density of 8.9 g/cm^3. You have six cubic centimeters of the substance. What is the material's mass in grams?

Svet_ta [14]

If the formula for density=m/v, you can manipulate this formula to the the mass. After manipulation, you get the equation for mass to be: m=density * volume. With density and volume given, we can find the mass.

mass= (8.9) * 6 = 53.4grams

7 0

3 years ago

Read 2 more answers

PtichkaEL [24]

Answer:

c) 35 fl oz

Explanation:

Hello,

In this case, to compute the recommended amount of calcium that the teenager must drink, one performs the following relationship:

$8.0-fl \ oz -->298mg\\x-->1,300mg$

Solving for $x$ , one gets:

$x=\frac{8.0-fl \ oz *1,300mg}{298mg} \\x=35-fl \ oz$

Best regards.

5 0

3 years ago

A sample of a gas in a rigid container has an initial pressure of 1.049 kPa and an initial temperature of 7.39 K. The temperatur

Doss [256]

Answer:- 4.36 kPa

Solution:- At constant volume, the pressure of the gas is directly proportional to the kelvin temperature.

$\frac{P_1}{T_1}=\frac{P_2}{T_2}$

Where the subscripts 1 and 2 are representing initial and final quantities.

From given data:

$P_1$ = 1.049 kPa

$P_2$ = ?

$T_1$ = 7.39 K

$T_2$ = 30.70 K

For final pressure, the equation could also be rearranged as:

$P_2=\frac{P_1T_2}{T_1}$

Let's plug in the values in it:

$P_2=\frac{1.049kPa(30.70K)}{7.39K}$

$P_2$ = 4.36 kPa

So, the new pressure of the gas is 4.36 kPa.

5 0

3 years ago

How could you use the physical properties of melting and boiling point to identify a substance?

weeeeeb [17]

Answer:

Since the chemical composition of the substance stays the same, such as that of water in the above mentioned example, melting and boiling are physical changes. And hence, boiling points and melting points are physical properties. Since they are a property of the material, they can be used to identify it.

Explanation:

4 0

3 years ago