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olya-2409 [2.1K]
3 years ago
11

Predict which of the substances, NH3, N2, CH2Cl2, Cl2, CCl4 has

Chemistry
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

djsjwjwjdjxjdbs djwuqidx8diw d xbd

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Aluminium oxide has a very high melting point (2072 degrees C) while carbon dioxide has a very low boiling point (-57 degrees C)
____ [38]

Answer:

Well, Aluminum Oxide has a very high melting point. Carbon dioxide has a very low boiling point.

Explanation:

They are both talking about different things, melting and boiling. Aluminum Oxide's melting point is much higher then carbon dioxide's melting point. Hope this help, and good luck on your assignment (if one)

5 0
4 years ago
How many grams of fosforic acid (H3PO4) are required to prepare 500 mL of a 0.2 M solution?
navik [9.2K]

Answer:

Mass = 9.8 g

Explanation:

Given data:

Molarity of solution = 0.2 M

Volume of solution = 500 mL

Number of grams of phosphoric acid = ?

Solution:

First of all we will convert the volume milliliter to litter.

500 mL × 1 L/1000 mL

0.5 L

Molarity = moles of solute / volume in litter

0.2 M =  number of moles / volume in litter

Number of moles = 0.2 mol/L × 0.5 L

Number of moles = 0.1 mol

Number of grams:

Number of moles = mass/molar mass

Mass = number of moles × molar mass

Mass = 0.1 mol × 98 g/mol

Mass = 9.8 g

7 0
3 years ago
Identify an alkene and carboxylic acid using primary observations
ehidna [41]

Answer:

The general formula for the carboxylic acids is C nH 2n+1COOH (where n is the number of carbon atoms in the molecule, minus 1).

Explanation:

<em>Hope </em><em>it </em><em>helps </em><em>u </em>

FOLLOW MY ACCOUNT PLS PLS

4 0
3 years ago
The average atomic mass of copper is 63.55 amu. If the only two isotopes of copper have masses of 62.94 amu and 64.93 amu, what
IgorLugansk [536]

Explanation:

Let relative ratio of one isotope (62.94 u) be X

Then, relative ratio of other isotope (64.93) will be (1 - X)

Now,

(62.94)x + (64.93)(1 - x) = 63.55

1.99x = 1.38

X = 0.69

<u>Relative Abundance</u> :

(62.94 u) isotope = 69 %

(64.93 u) isotope = 31 %

7 0
3 years ago
Which solid is the most suitable in the space elevator cable
Tresset [83]
It should be Carbon Nanotubes
4 0
3 years ago
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