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2 years ago

Justify thethe importance of solar enengy as on alternative source of energy in Nepal

Chemistry

1 answer:

borishaifa [10]2 years ago

4 0

Answer:

Nepal aims to achieve universal access to clean, reliable and affordable renewable energy solutions by 2030. It is expected to reduce dependence on traditional and imported energy by increasing access to renewable energy. The use of solar energy is more reliable than traditional electricity in Nepal.

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Match each type of chemical bond with its properties. Drag the items

natka813 [3]

Explanation:

covalent bond poor thermal conductivity

molecular compounds

metallic bond ductile

electron sea model

ionic bond crystalline

hard and brittle

Covalent compounds have the following properties:

Gases and volatile liquids or low melting point solids
Often insoluble in polar solvents
Mainly non - conductors
Have slow reactions

Metallic compounds:

Have good malleability, ductility, electrical and thermal conductivity.
A large sea of electron by jointly packed atoms.
They are mostly in metals
Accounts for the bulk of the physical properties displayed by metals

Ionic compounds:

High melting and boiling point
Soluble in polar liquids
Conducts electricity in molten or aqueous forms.
Mostly crystalline solids
Usually hard and brittle
Undergoes fast chemical reactions

learn more:

Covalent bonds brainly.com/question/5258547

Ionic bond brainly.com/question/6071838

#learnwithBrainly

5 0

3 years ago

Explain with equations and calculations, when necessary, whether an aqueous solution of each of these salts is acidic, basic, or

Julli [10]

NaHS is an acidic salt.

NaHS is obtained by replacement of one acidic hydrogen of `H2S` by Na (on reaction with NaOH).

<h3>What do we know about NaHS?</h3>

The chemical compound with the formula NaSH is sodium hydrosulfide. This substance is created when hydrogen sulfide is partially neutralized with sodium hydroxide. In the industrial setting, sodium sulfide and NaSH are frequently employed for the same things. Solid NaSH has no color.

Solution of sodium hydrosulfide is a colorless to light-yellow liquid. corrosive to flesh and metals. It is employed in the production of colors and paper pulp.

To learn more about acidic salt:

brainly.com/question/7178280

#SPJ4

7 0

2 years ago

Help, cant get it. Answers in picture

Aleks04 [339]

Answer:17.0

Explanation:

8 0

3 years ago

Elemnt name, atomic number, atomic mass, protons, neutrons, elsctrons 1-10

Anika [276]

<h2><em>Answer:</em></h2><h2><em>Hydrogen </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 1 </em></h2><h2><em> </em></h2><h2><em>Symbol: H </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 1 </em></h2><h2><em> </em></h2><h2><em>Protons: 1 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 0 </em></h2><h2><em> </em></h2><h2><em>Electrons: 1 </em></h2><h2><em> </em></h2><h2><em>Helium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 2 </em></h2><h2><em> </em></h2><h2><em>Symbol: He </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 4 </em></h2><h2><em> </em></h2><h2><em>Protons: 2 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 2 </em></h2><h2><em> </em></h2><h2><em>Electrons: 2 </em></h2><h2><em> </em></h2><h2><em>Lithium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 3 </em></h2><h2><em> </em></h2><h2><em>Symbol: Li </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 7 </em></h2><h2><em> </em></h2><h2><em>Protons: 3 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 4 </em></h2><h2><em> </em></h2><h2><em>Electrons: 3 </em></h2><h2><em> </em></h2><h2><em>Beryllium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 4 </em></h2><h2><em> </em></h2><h2><em>Symbol: Be </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 9 </em></h2><h2><em> </em></h2><h2><em>Protons: 4 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 5 </em></h2><h2><em> </em></h2><h2><em>Electrons: 4 </em></h2><h2><em> </em></h2><h2><em>Boron </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 5 </em></h2><h2><em> </em></h2><h2><em>Symbol: B </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 11 </em></h2><h2><em> </em></h2><h2><em>Protons: 5 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 6 </em></h2><h2><em> </em></h2><h2><em>Electrons: 5 </em></h2><h2><em> </em></h2><h2><em>Carbon </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 6 </em></h2><h2><em> </em></h2><h2><em>Symbol: C </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 12 </em></h2><h2><em> </em></h2><h2><em>Protons: 6 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 6 </em></h2><h2><em> </em></h2><h2><em>Electrons: 6 </em></h2><h2><em> </em></h2><h2><em>Nitrogen </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 7 </em></h2><h2><em> </em></h2><h2><em>Symbol: N </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 14 </em></h2><h2><em> </em></h2><h2><em>Protons: 7 </em></h2><h2><em> </em></h2><h2><em>Neutrons:7 </em></h2><h2><em> </em></h2><h2><em>Electrons: 7 </em></h2><h2><em> </em></h2><h2><em>Oxygen </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 8 </em></h2><h2><em> </em></h2><h2><em>Symbol: O </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 16 </em></h2><h2><em> </em></h2><h2><em>Protons: 8 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 8 </em></h2><h2><em> </em></h2><h2><em>Electrons: 8 </em></h2><h2><em> </em></h2><h2><em>Fluorine </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 9 </em></h2><h2><em> </em></h2><h2><em>Symbol: F </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 19 </em></h2><h2><em> </em></h2><h2><em>Protons: 9 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 10 </em></h2><h2><em> </em></h2><h2><em>Electrons: 9 </em></h2><h2><em> </em></h2><h2><em>Neon </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 10 </em></h2><h2><em> </em></h2><h2><em>Symbol: Ne </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 20 </em></h2><h2><em> </em></h2><h2><em>Protons: 10 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 10 </em></h2><h2><em> </em></h2><h2><em>Electrons: 10 </em></h2><h2><em> </em></h2><h2><em>Sodium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 11 </em></h2><h2><em> </em></h2><h2><em>Symbol: Na </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 23 </em></h2><h2><em> </em></h2><h2><em>Protons: 11 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 12 </em></h2><h2><em> </em></h2><h2><em>Electrons: 11 </em></h2><h2><em> </em></h2><h2><em>Magnesium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 12 </em></h2><h2><em> </em></h2><h2><em>Symbol: Mg </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 24 </em></h2><h2><em> </em></h2><h2><em>Protons: 12 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 12 </em></h2><h2><em> </em></h2><h2><em>Electrons: 12 </em></h2><h2><em> </em></h2><h2><em>Aluminum </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 13 </em></h2><h2><em> </em></h2><h2><em>Symbol: Al </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 27 </em></h2><h2><em> </em></h2><h2><em>Protons: 13 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 14 </em></h2><h2><em> </em></h2><h2><em>Electrons: 13 </em></h2><h2><em> </em></h2><h2><em>Silicon </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 14 </em></h2><h2><em> </em></h2><h2><em>Symbol: Si </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 28 </em></h2><h2><em> </em></h2><h2><em>Protons: 14 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 14 </em></h2><h2><em> </em></h2><h2><em>Electrons: 14 </em></h2><h2><em> </em></h2><h2><em>Phosphorus </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 15 </em></h2><h2><em> </em></h2><h2><em>Symbol: P </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 31 </em></h2><h2><em> </em></h2><h2><em>Protons: 15 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 16 </em></h2><h2><em> </em></h2><h2><em>Electrons: 15 </em></h2><h2><em> </em></h2><h2><em>Sulfur </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 16 </em></h2><h2><em> </em></h2><h2><em>Symbol: S </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 32 </em></h2><h2><em> </em></h2><h2><em>Protons: 16 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 16 </em></h2><h2><em> </em></h2><h2><em>Electrons: 16 </em></h2><h2><em> </em></h2><h2><em>Chlorine </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 17 </em></h2><h2><em> </em></h2><h2><em>Symbol: Cl </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 35 </em></h2><h2><em> </em></h2><h2><em>Protons: 17 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 18 </em></h2><h2><em> </em></h2><h2><em>Electrons: 17 </em></h2><h2><em> </em></h2><h2><em>Argon </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 18 </em></h2><h2><em> </em></h2><h2><em>Symbol: Ar </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 40 </em></h2><h2><em> </em></h2><h2><em>Protons: 18 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 22 </em></h2><h2><em> </em></h2><h2><em>Electrons: 18 </em></h2><h2><em> </em></h2><h2><em>Potassium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 19 </em></h2><h2><em> </em></h2><h2><em>Symbol: K </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 39 </em></h2><h2><em> </em></h2><h2><em>Protons: 19 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 20 </em></h2><h2><em> </em></h2><h2><em>Electrons: 19 </em></h2><h2><em> </em></h2><h2><em>Calcium </em></h2><h2><em> </em></h2><h2><em>Atomic Number: 20 </em></h2><h2><em> </em></h2><h2><em>Symbol: Ca </em></h2><h2><em> </em></h2><h2><em>Atomic Mass: 40 </em></h2><h2><em> </em></h2><h2><em>Protons: 20 </em></h2><h2><em> </em></h2><h2><em>Neutrons: 20 </em></h2><h2><em> </em></h2><h2><em>Electrons: 20</em> </h2>

4 0

3 years ago

An atom has atomic number 5 and mass number 11. How many protons does the atom have? 5 6 10 11

spin [16.1K]

Answer:

6 neutrons. The mass number is the number of protons and neutrons in the nucleus of an atom. The atomic number shows how many protons. Subract the atomic number from the mass number to find the number of neutrons.

Explanation:

6 0

4 years ago

Read 2 more answers

Justify thethe importance of solar enengy as on alternative source of energy in Nepal​

Justify thethe importance of solar enengy as on alternative source of energy in Nepal