All categories

4 years ago

What are the rules for naming covalent compounds

1 answer:

6 0

1.Remove the ending of the second element, and add "ide" just like in ionic compounds
2.When naming molecular compounds prefixes are used to dictate the number of a given element present in the compound
3.If there is only one of the first element, you can drop the prefix
4.If there are two vowels in a row that sound the same once the prefix is added (they "conflict"), the extra vowel on the end of the prefix is removed

You might be interested in

When 5 grams of salt dissolve in 30 grams of water, what is the resulting mass of the mixture?

SpyIntel [72]

The answer is 35 grams.

When we mix salt and water, salt will dissolve. Still, it mass does not disappear, but remains intact. Mass cannot be destroyed. When salt is dissolved in the water, salt molecules are only re-positioned, but all the molecules are present as well as their mass. So if you add 5 grams of salt in 30 grams of water, the resulting mass will be 5 + 30 grams, which is 35 grams.

6 0

3 years ago

Read 2 more answers

Describe 3 tectonic plate interactions you thought were interesting and explain why.

Svetradugi [14.3K]

Answer:

Convergent, divergent, transform

Explanation:

Convergent- tectonic plates move towards one another

Divergent- they move away from each other, or in other directions

Transform- tectonic plates slide past/against each other

8 0

3 years ago

Help with this instruction booklet

Dvinal [7]

It says you can pick any organ system. Organ systems are Respiratory system, Muscular, Nervous that looks like a brain, and skeleton. Just pick one of these. Say what it does and why its needed for the human?

5 0

3 years ago

1‑Propanol ( P⁰ 1 = 20.9 Torr at 25 ⁰C ) and 2‑propanol ( P⁰ 2 = 45.2 Torr at 25 ⁰C ) form ideal solutions in all proportions. L

anastassius [24]

Answer : The mole fraction of vapor phase 1‑Propanol and 2‑Propanol is, 0.352 and 0.648 respectively.

Explanation : Given,

Vapor presume of 1‑Propanol $(P^o_1)$ = 20.9 torr

Vapor presume of 2‑Propanol $(P^o_2)$ = 45.2 torr

Mole fraction of 1‑Propanol $(x_1)$ = 0.540

Mole fraction of 2‑Propanol $(x_2)$ = 1-0.540 = 0.46

First we have to calculate the partial pressure of 1‑Propanol and 2‑Propanol.

$p_1=x_1\times p^o_1$

where,

$p_1$ = partial vapor pressure of 1‑Propanol

$p^o_1$ = vapor pressure of pure substance 1‑Propanol

$x_1$ = mole fraction of 1‑Propanol

$p_1=(0.540)\times (20.9torr)=11.3torr$

and,

$p_2=x_2\times p^o_2$

where,

$p_2$ = partial vapor pressure of 2‑Propanol

$p^o_2$ = vapor pressure of pure substance 2‑Propanol

$x_2$ = mole fraction of 2‑Propanol

$p_2=(0.46)\times (45.2torr)=20.8torr$

Thus, total pressure = 11.3 + 20.8 = 32.1 torr

Now we have to calculate the mole fraction of vapor phase 1‑Propanol and 2‑Propanol.

$\text{Mole fraction of 1-Propanol}=\frac{\text{Partial pressure of 1-Propanol}}{\text{Total pressure}}=\frac{11.3}{32.1}=0.352$

and,

$\text{Mole fraction of 2-Propanol}=\frac{\text{Partial pressure of 2-Propanol}}{\text{Total pressure}}=\frac{20.8}{32.1}=0.648$

Thus, the mole fraction of vapor phase 1‑Propanol and 2‑Propanol is, 0.352 and 0.648 respectively.

3 0

3 years ago

In the reaction between magnesium and sulfur, the magnesium atoms

Serggg [28]

Answer: Option (b) is the correct answer.

Explanation:

Atomic number of magnesium is 12 and its electronic distribution is 2, 8, 2. Whereas atomic number of sulfur is 16 and its electronic distribution is 2, 8, 6.

So, in order to attain stability a magnesium atom needs to lose its 2 valence electrons and a sulfur atom needs to gain two electrons to completely fill its octet.

Hence, magnesium on losing two electrons will acquire a +2 charge and thus, it becomes a cation. On the other hand, sulfur on gaining two electrons will acquire a -2 charge and thus, sulfur will become an anion.

Thus, we can conclude that in the reaction between magnesium and sulfur, the magnesium atoms become cations.

5 0

4 years ago

Read 2 more answers