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Ann [662]
3 years ago
15

Unknown compounds can usually be identified based solely on their _____.

Chemistry
2 answers:
RideAnS [48]3 years ago
7 0
B reactivity  because compounds are made of atoms and molecules and you need to know what they react to to know what they are made up of. 
34kurt3 years ago
4 0
Hysical proprerties i think
You might be interested in
How many grams are in 3.40 x 10^24 molecules of CH4
Arturiano [62]

Answer:

90.37 g

Explanation:

From Avogadro Number,

1 mole of every substance contains a particle number of 6.02×10²³

From the question,

1 mole of CH₄ contains 6.02×10²³ molecules.

But,

1 mole of CH₄ has a mass of 16 g

Therefore,

16 g of CH₄ contains 6.02×10²³ molecules

Then,

Y g will contain 3.4×10²⁴ molecules

Solve for Y

Y = (16× 3.4×10²⁴)/(6.02×10²³)

Y = 90.37 g

6 0
3 years ago
The enthalpy of vaporization for water is 40.67 kJ/mol and the enthalpy of fusion for water is
S_A_V [24]

Answer:

\Delta H_{dep}=-46.68kJ/mol

Explanation:

Hello!

In this case, since vaporization is the processes by which a liquid goes to the gas phase, fusion by which a solid goes to liquid and deposition by which a gas goes to solid; we infer that the following set up relates the enthalpies associated to each process:

\Delta H_{fus}+\Delta H_{vap}=-\Delta H_{dep}

Because deposition goes from a state with more energy to a state with less energy, therefore it is negative; in such a way, by plugging in we obtain:

\Delta H_{dep}=-(\Delta H_{fus}+\Delta H_{vap})\\\\\Delta H_{dep}=-(6.01kJ/mol+40.67kJ/mol)\\\\\Delta H_{dep}=-46.68kJ/mol

Best regards!

6 0
3 years ago
Which element is placed in the same period as ruthenium but has a higher atomic number than it?
emmasim [6.3K]

Answer:

The part that is put in the same time as ruthenium, but has a greater number of atoms than silver.

8 0
3 years ago
Sulfuric acid is a strong acid. Write the balanced molecular equation for the reaction of aqueous sulfuric acid and aqueous pota
Alik [6]

Answer:

one

Explanation:

I hope this will help you

3 0
2 years ago
Which of the following aqueous solutions has the lowest pH? Why?
jenyasd209 [6]
Answer:

HCI

Explanation:

The solution with the lowest pH is HCI with a pH value of 1. It is understood that it is more acidic because it is a strong acid.
6 0
3 years ago
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