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2 years ago

Which of the following halogens would have the highest melting point?

Chemistry

1 answer:

anygoal [31]2 years ago

7 0

Answer: d. I2

The melting and boiling points increase down a group

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What is the correct formula that would result from the combination of the two ionic species?

Soloha48 [4]

Answer:

CsCl

Explanation:

The ionic species are:

Cs⁺ and Cl⁻

6 0

1 year ago

Which statement is true about the compound ammonium sulfate [(NH4)2SO4] ?

BabaBlast [244]

Answer:

It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion

Explanation:

Ammonium Sulfate is an ionic compound formed by two polyatomic ions, Ammonium NH+4 and Sulfate SO−4 . ... Therefore, it will take two +1 ammonium ions to balance the one -2 sulfate ion. This will make the formula for Ammonium Sulfate (NH4)2SO4

4 0

2 years ago

Read 2 more answers

If there are three methyl groups on the same carbon, what is the prefix<br> used?

Tanzania [10]

Answer:

tri

Explanation:

1-nothing

2-di

3-tri

- Hope that helps! Please let me know if you need further explanation.

6 0

2 years ago

Suppose you have 75 gas-phase molecules of methanol (CH3OH) at T = 470 K. These molecules are contained in a spherical container

Katarina [22]

Answer:

The average pressure in the container due to these 75 gas molecules is $P=9.72 \times 10^{-16} Pa$

Explanation:

Here Pressure in a container is given as

$P=\frac{1}{3} \rho$

Here

P is the pressure which is to be calculated

ρ is the density of the gas which is to be calculated as below

$\rho =\frac{mass}{Volume of container}$

Here

mass is to be calculated for 75 gas phase molecules as

$m=n_{molecules} \times \frac{1 mol}{6.022 \times 10^{23} molecules} \times \frac{32 g/mol}{1 mol}\\m=75 \times \frac{1 mol}{6.022 \times 10^{23} molecules} \times \frac{32 g/mol}{1 mol}\\m=3.98 \times 10^{-21} g$

Volume of container is 0.5 lts

So density is given as

$\rho =\frac{mass}{Volume of container}\\\rho =\frac{3.98 \times 10^{-21} \times 10^{-3} kg}{0.5 \times 10^{-3} m^3}\\\rho =7.97 \times 10^{-21}\, kg/m^3$