Explain how much risk you think your area has for water scarcity????

Answers

Answer 1

Answer: Not very much because half the time the water is purified but just normal water in my area probably has serious levels of scarcity.

Answer 2

Answer:

Answer:

Explanation: Over pumping refers to pumping fresh water and reducing the level of an underground layer of water. In coastal areas, the lower underground layer of water is infiltrated with salt water, eventually increasing the salinity of the underground layer of water to the point that it is not drinkable. The scarcity of water in the coastal areas because the water in the coastal areas is not drinkable.

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Which equations shows the complete dissociation of a strong base?

Answers

The correct answer is the fourth option. The complete dissociation of a strong base is BOH + h20 -> B+ + OH- + H20 since this is the only base from the choices given. A base is a substance that accepts hydrogen ions.

You fill a balloon with 2.50 moles of gas at 25°C at a pressure of 1.49 atm. What is the volume of the balloon?

Answers

You need to use the ideal gas equation:

$PV = nRT$

P is pressure (in atm or bar)

V is volume (in L)

n is the number of moles (in mol)

R is an experimentally determined ratio of about 0.82

T is the temperature (in Kelvin)

Note: For all gases, you need to convert Celsius or Fahrenheit to Kelvin.

$25C + 273.15 = 298.15K$

Get V alone.

$V = (nRT)/(P)$

Plug in the values you have.

$V = (2.50 mol * 0.82 * 298.15 K)/(1.49 atm)$

you get:

$V = 611.2075L$

A fun fact: the gas used to fill up a balloon is Helium.

How many grams is 1.2 moles of Neon?

Answers

Mass of Neon : = 24.21564 g

Further explanation

Given

1.2 moles of Neon

Required

mass of Neon

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

Mol = mass : Molar mass

so mass of Neon(MM=20,1797 g/mol) :

= mol x MM

= 1.2 x 20,1797

= 24.21564 g

What turns colour in an acid and base

Answers

Answer:

Chemists use a solution called Universal Indicator to identify acids and bases. ... The Universal Indicator Color Guide shows that Universal Indicator turns red when it is added to a strong acid, it turns purple when it is added to a strong base, and it turns a yellowish-green when it is added to a neutral solution.

Explanation:

Answer:

Phenolphthalein

Explanation:

How many moles of sulfate ions (SO42−) are present in 1.5 mol of Al2(SO4)3?

Answers

Answer:4.5 moles of sulfate ions are present in 1.5 moles of $Al_2(SO_4)_3$ .

Explanation:

$Al_2(SO_4)_3\rightarrow 2Al^(3+)+3SO_(4)^(2-)$

1 mol of $Al_2(SO_4)_3$ gives 3 moles of sulfate ions.

Moles of sulfate ion in 1.5 moles : $1.5* 3=4.5 moles$

4.5 moles of sulfate ions are present in 1.5 moles of $Al_2(SO_4)_3$ .

Moles are the fraction of the chemical unit of the atoms, molecules, etc. The moles of sulfate ion present in 1.5 moles of aluminum sulfate is 4.5 moles.