How many milliliters of 2.5M HCI are required to exactly neutralize 15 milliliters of 5.0 M NaOH

Need help please I need to select one element for each following families on the periodic table

There are five Family on the periodic table that are alkali metals , Alkaline earth metals , transition metals , Halogens family and noble gas family.

1) In alkali metals, there are six elements are present and among all the elements Sodium metal should be selected. Because sodium metal is most abundant metal in the world.

uses of sodium are
sodium salt are common salt that added to the food to enhance the taste.
washing soda are made up of sodium salt which is used as water softener.
sodium salts are also used as buffer to maintain Ph.

2) In alkaline earth metal family, The magnesium element should be selected.

uses of magnesium are
since magnesium is a soft metal so it can burn easily therefore it is used in fire works.
magnesium is also important for proper growth and maintenance of bones.
Magnesium is light weight metal so it can used to make car seat , luggage and power tools etc.

3) In Halogens gas family , chlorine should be selected.

Uses of chlorine are
The chlorine is used in cleaning purpose as it act as bleaching agent.
Chlorine is also used to prepare the pesticides to removes pest in crops.
In refrigerators, the cold breeze is coming out is chlorine gas which are used to increase the shelf life of the plants.

4) In transition metals , copper metal should be choose.

Use of copper metal are
Copper is highly ductile metal so it drawn into wires and used in various electrical purpose.
The copper has anti corrosive properties so it can used in making kitchen utensils.
The copper has anti microbial property so it can used in packaging of food.

5) In noble gas elements, The helium gas should be selected

uses of helium gas are
It used as semiconductors.
It used in party balloons.
The helium is inert gas so it used to make optical fibers.

These are the daily life usage of all the elements of each family of the periodic table.

Lean more about Periodic Table here

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3 0

1 year ago

Is this right?

telo118 [61]

Well I’m. Or to sure but it can’t be B because when you throw the ball the the kinetic energy is still increasing

3 0

3 years ago

Read 2 more answers

What characterizes a homogeneous mixture?

weqwewe [10]

A homogeneous mixture is uniform throughout, like water that has dissolved gases. You cannot easily distinguish the individual parts of the mixture. Many other drinks are considered homogeneous too. Laundry detergent and colognes are other examples of homogeneous mixtures. Homogeneous mixtures can also be a solid (ie. steel), liquid or gas form. It does not always have to be a liquid.

4 0

3 years ago

A sample has a hydrogen ion concentration of 1 ⋅ 10^−2. What happens if the hydrogen ion concentration increases?

makkiz [27]

If the concentration of the hydrogen ions, increase then the solution would become more and more acidic and thus have a lower pH value than compared to the pH value before at the 1.0 X 10^-2 M.

6 0

3 years ago

If 588 grams of FeS2 is allowed to react with 352 grams of O2 according to the following equation, how many grams of Fe2O3 are p

Rainbow [258]

Answer: The mass of iron (III) oxide produced is 782.5 grams

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)