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horrorfan [7]
3 years ago
15

Is it possible for a balloon with an initial internal pressure equal to 250.0 kPa

Chemistry
1 answer:
MrRa [10]3 years ago
6 0
No, don't try, it will explode  close to 187 kPa
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For metals, reactivity _____ as you go from _____ in a period.
ki77a [65]

Reactivity - Reactivity refers to how likely or vigorously an atom is to react with other substances. This is usually determined by how easily electrons can be removed (ionization energy) and how badly they want to take other atom's electrons (electronegativity) because it is the transfer/interaction of electrons that is the basis of chemical reactions.  

Metals  

Period - reactivity decreases as you go from left to right across a period.  

Group - reactivity increases as you go down a group  

Why? The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity.  

Non-metals  

Period - reactivity increases as you go from the left to the right across a period.  

Group - reactivity decreases as you go down the group.  

Why? The farther right and up you go on the periodic table, the higher the electronegativity, resulting in a more vigorous exchange of electron

8 0
2 years ago
It is required to prepare 1250 kg of a solution composed of 12 wt.% ethanol and 88 wt.% water. Two solutions are available, the
bekas [8.4K]

Answer:

437.5 kg of first solution and 812.5 kg of second solution should be mixed to get desired solution.

Explanation:

Let the mass of the first solution be x and second solution be y.

Amount solution required = 1250 kg

x + y = 1250 kg....[1]

Percentage of ethanol in required solution = 12% of 1250 kg

Percentage of ethanol in solution-1 = 5% of x

Percentage of ethanol in required solution = 25% of y

5% of x +  25% of y =12% of 1250 kg

\frac{5}{100}\times x+\frac{25}{100}y=\frac{12}{100}\times 1250 kg

x + 5y = 3000 kg...[2]

Solving [1] and [2] we :

x = 437.5 kg   , y =  812.5 kg

437.5 kg of first solution and 812.5 kg of second solution should be mixed to get desired solution.

8 0
3 years ago
How many particles are in 6.02 moles of methane?
r-ruslan [8.4K]
One mole of methane has a mass of 16 g

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2 years ago
How many grams of NH3 can be produced from 4.98 mol of N2 and excess H2
neonofarm [45]
169.32 grams of NH3 ........
3 0
3 years ago
In examining an organic compound, you discover that it contains the following functional group. What class of organic compound i
Romashka [77]
Option B. carboxylic acid

For example

CH3 - COOH, is the acetic acid or etanoic acid.

where - COOH is C bonded with O (trhough doble bond) and with OH (with a single bond)
8 0
3 years ago
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