Can someone please help me write a little 2 sentence answer to this for me, it would be so helpful and the first person to answer it will most definitely be marked brainlist.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{6.20 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 10.299003[/tex]

We have the final answer as

Hope this helps you

Answer:

a) 2H2+O2 = 2H²O

b) 4Fe+30²=2Fe²O³

c) 2Al+6HCl=2AlCl³+3H²

Answer:

Explanation:

Example of compound(CO)

Example of mixture(Milk)

Answer:  Count only the electrons in the highest shell s and p orbitals when determining valence.

Explanation:  I'm glad you asked this question.  It is often not well explained.   The term valence electrons is assigned to only the electrons in an element's highest energy level.  These reside only in the s and p orbitals, and not the d or f, as I'll explain later.  The s orbital can hold 2 electrons and the p can hold 6.  Potassium, K, has an s orbital in its highest energy shell, 4.  It contains only 1 electron, so it has a valency of 1.  

Calcium, Ca, has 2 in its highest energy level: 4s^2, so it has a valency of 2.   Moving to the right, the element scandium, Sc, add another electron, but it goes into the 3d orbital.  3d is in the 3rd energy shell, so it is not counted as a valence electron.  Only after we move further right, to gallium, Ga, do we start adding electrons to the 4th energy level again - the 4p orbitals can accept up to 6 electrons.  Ga has 3 valence electrons - 2 in the 4s and 1 in the 4p.  Oxygen has 2 in the 2s and 4 in the 4p orbitals, for a total of 6.  It is close to having a comple outer shell (2 in the 2s and 6 in the 2p).  Just 2 more electrons would fill both the 2s and 2p orbitals for a total of 8 valence electrons, a stable configuration (the same configuration as thje stable gas Neon).

Answer:

The word "transfers" completes the sentence.

Explanation:

A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator.

Hope This Helps!

Answer:

The right answer is "kinetic"

Explanation:

Wind is moving, so has kinetic energy.

Answer:

The answer is D.

Explanation:

Isometries means both x and y will change with same scale factor not dissimilar factors

#1

Factor is -2

#b

#c

#d

Factor is 3

#e

No

Answer:

Today, the atom is defined as the smallest particle that can be considered an element.

Explanation:

Answer:

Today,the atom is defined as the smallest particle that can still be considered an element.

Answer:

Volume is cut in half

Explanation:

• From boyles gas law

[tex]{ \rm{P \: \alpha \: \frac{1}{V} }} \\ \\ { \rm{P _{1}V _{1} = P_{2}V _{2} }}[/tex]

[tex]{ \rm{(1 \times V _{1}) = (2 \times V _{2})}} \\ \\ { \rm{ \frac{V _{2}}{V_{1}} = \frac{1}{2} }} \\ \\ { \boxed{ \rm{V_{2} : V _{1} = \frac{1}{2} }}}[/tex]

Not all chemical reactions are spectacular. They do not always involve substances that you think of as chemicals like the ones in the lab or in acid rain. ... When molecules of sulfenic acid get to your eyes, they can react with the water in your eyes to produce a new substance, a form of sulfuric acid.

Answer:

the ribosome catalyzes the formation of which bond peptide bonds, peptidyl transfer, the formation of a peptide bond during protein synthesis

Answer:

Sodium chloride is an ionic compound which makes it stronger and have a higher melting and boiling point. Candle wax is a covalent compound so it has a low melting point.

Explanation:

Answer:

The opposite of an endothermic process is an exothermic process, one that releases or "gives out" energy, usually in the form of heat and sometimes as electrical energy.

Explanation:

Hope this helps you. Have a nice day. Please mark as brainliest. It helps a lot. ^_^

A spontaneous reaction is one in which the change in free energy is negative and the standard cell potential is positive.

For a redox reaction to be spontaneous, the electrode potential of the cell must be positive and this depends on the relative electrode potentials of the species involved in the reaction. A metal can not displace a metal above it in the electrochemical series from solution.

Based on this;

Lean more: https://brainly.com/question/24556237

Answer:

sana all may brainnnnnnnnnnnnn

Answer:

The answer is

D)

radiant, electrical, mechanical

Explanation:

Gas has the most spread out particles.

Explanation:

na is element

others are compounds

Answer:The halogens in Group 17

Explanation:  The halogens in Group 17 all have 7 valence electrons.  They will steal anuy electrons they can to form a full outer shell.

Answer: I am sorry i couldnt answer but this question is beyond me

Explanation:

Answer:

Water cooled down and contracted.

Explanation:

When water contracts, its volume decreases. When the volume of the water in the bottle system decreases, the water is pulled farther down the clear pipe.

Answer:

Volatile

Explanation:

Nonmetal are usually volatile, which means it evaporate easily.

--

Easy.

Answer:

Volatile

Explanation:

Nonmetals are usually volatile, so it means that they can evaporate easily.

The two factors which must be held constant for density to be a constant ratio are: Mass and Volume

As we know, the density of a material is simply defined as the ratio of mass to volume.

Consequently, To obtain a constant ratio for density, the mass and volume of the material in discuss must be kept constant.

Read more;

https://brainly.com/question/17780219

Geological settings whereby there is melting of rock as well as formation of sediments can be attributed to Plate tectonics .

Plate tectonics can be regarded as  theory which explained the Earth's outer shell and how its been divided into solid rocks as well as slabs and its often referred to as Plate.

Therefore, plate tectonic  gives explanation about Earth's outer shell.

https://brainly.com/question/20918142?referrer=searchResults

Answer:

D, radiation

Explanation:

the sun's heat radiates onto the land, oceans, and surrounding atmosphere, warming them

Answer:

70

Explanation:

The atomic number stands for the number of protons.

mass number stands for number of neutrons and protons.

30 neutrons + 40 protons = mass number of 70

Hope this helps!

According to law of conservation of mass.

In a chemical reaction Mass is neither created nor destroyed.

#1

Mass of water

[tex]\\ \sf\longmapsto 30+120=150g[/tex]

#2

Mass of sulphur:-

[tex]\\ \sf\longmapsto 136.9-111.6=25.3g[/tex]

Answer:

It's motor oil and brake fluid

Answer:

The space in the container so how small it is the more pressure is going to build up. YOUR WELCOME AND HAVR A GOOD DAY.