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4 years ago

How many nitrogen atoms are represented in 2Ca(NO3)2?

Chemistry

1 answer:

arsen [322]4 years ago

4 0

Explanation:

there is 2 nitrogen but if you mean nitrate is 6

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A 2.50 L balloon is filled with water at 2.27 atm. If the balloon is squeezed into a 0.80 L beaker and does NOT burst, what is t

Ludmilka [50]

Answer:

$P_2=7.09atm$

Explanation:

Hello!

In this case, given the change in volume and pressure of the gas, it is possible for us to recall the Boyle's law as way to understand the inversely proportional relationship between pressure and volume:

$P_1V_1=P_2V_2$

Thus, when solving for the final pressure, P2, given the initial pressure and volume and the final volume, we obtain:

$P_2=\frac{P_1V_1}{V_2}\\\\P_2=\frac{2.27atm*2.50L}{0.80L}\\\\P_2=7.09atm$

Best regards!

3 0

3 years ago

Read 2 more answers

Assuming that the smallest measurable wavelength in an experiment is 0.730 fm (femtometers), what is the maximum mass of an obje

Archy [21]

1 fm = 1.0 × 10-15 meters
so
0.610 fm x (1.0x10^-15 m / 1 fm)
= 6.1x10^-16 m
so the formula is
λ = h / mu
so,
as we know mass value so by putting
m = (6.626*10^-34)/(6.1*10^-16*199)
=(6.626*10^-34)/(1213.96*10^-16)
 = 5.45 x 10^ -21
hope thats an answer for you

6 0

4 years ago

How many moles of chloride ions are in 0.2 L of a 0.5 molar AlCl3 solution?

oksano4ka [1.4K]

Answer:

= 0.3 moles

Comment if you need step to step explanation.

6 0

3 years ago

Two common methods to generate an aldehyde is by oxidation of an alcohol and through ozonolysis.

kotykmax [81]

Answer:

a. True.

Explanation:

Only primary and secondary alcohols can oxidise to give an aldehyde. But a weak oxidizing agent must be used to prevent formation of a carboxylic acid or ketone.

weak oxidizing agents: Chromyl chloride, silver/oxygen/500°C

take an example of ethanol:

 ${ \bf{CH _{3} CH_{2}OH \: \: \frac{Ag/O_{2} }{500 \degree C} > \: \:CH _{3} CHO}}$ 

 ${ \sf{CH _{3} CHO \: \: is \: ethanal}}$ 

By ozonolysis:

Here, reactants are Ozone gas, Carbon tetrachloride at a temperature (<20°C), ethanoic acid, zinc and water.

take an example of propanol:

if it undergoes ozonolysis, it gives ethanal and methanal.

5 0

3 years ago

Read 2 more answers

Between a water molecule and an anion, like Cl-, a _____A_____ occurs between a _____B_____ of the water molecule and the anion.

AVprozaik [17]

Between a water molecule and an anion, like Cl-, a hydrogen bon occurs between hydrogen atom of the water molecule and the anion.

<h3>What is hydrogen bond?</h3>

Hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other. Hydrogen atom in water molecule attract anion due to presence of hydrogen bond.

So we can conclude that hydrogen bond occurs between hydrogen atom of the water molecule and the anion.

Learn more about bond here: brainly.com/question/819068

4 0

3 years ago