please do this i have 7 mirw min to submit​

Answer:

Solid

Explanation:

Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. ... It will take the shape of its container. Particles can move about within a liquid, but they are packed densely enough that volume is maintained.

Answer:

si

Explanation:

Answer:

c

Explanation:

they usually say "climate change" like it's a big deal so it should be long term

A. Atmospheric condition at one place and time.

I think the letter A is the one that best defines "climate"

hope this help!

Sorry if Im wrong

Answer:

Electrolytes

Explanation:

I answered this before kk

Answer:

ions lol

Explanation:

Answer:

if you run backward 3.3 meters then run 5.7 meters the opposite ways then you would have run 2.4 meters then where you started off. I hope this helped.

Explanation:

The chemical formula gives the ratio of atoms and elements in the compound. Therefore, option B, D is correct.

A chemical formula of a compound provides the chemical proportions of each element in a given compound or molecule. The chemical formula of a compound can be written with help of chemical symbols of elements, numbers, and symbols, such as plus (+) and minus (−) signs, dashes, commas, and brackets.

A chemical formula exhibits of no words related to the compound but can be drawn in some simple chemical structures. Chemical formulae of the compound should be limited in power than chemical names as well as chemical structural formulae.

There are two kinds of chemical formulas in chemistry: empirical formula and molecular formula.

The chemical formula gives in the formation of the different types of elements in the compound and the ratio of their atoms.

Learn more about chemical formula, here:

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Answer:

superstition

Explanation:

Because its not related to science ,and also telling about future.

Answer:

Explanation:

The computer model that is being described seems pretty accurate, the only change I would consider making would be a zoom in/out feature that allows the user to zoom-in in order to see the protons and electrons that make up the atoms which ultimately make up the molecule. Mainly since they are also a very important part of the molecules' structure and final composition and can be a vital piece of data, especially being able to visualize it.

Answer:

Air, is a mixture of atoms and molecules, while the space between said atoms, and molecules can expand and contract depending on the temperature.

Answer:

Atoms are mostly empty space.

Advertisers use the familiarity effect because companies hope that repeated exposure to their product will make people feel familiar with it and more likely to buy it.

Psychologists have even discovered that the more you see someone, the more likely you are to develop attraction for them. Even if the stimuli you are repeatedly exposed to is negative, you will find comfort in its familiarity.

We are drawn to people who appear familiar to us because familiarity provides predictability and safety." Imprinting is one such theory that is linked with familiarity.

Thus, Advertisers use the familiarity effect because companies hope that repeated exposure to their product will make people feel familiar with it and more likely to buy it.

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C2H4(g) + 2O2(g) → 2CO(g) + 2H2O(g)       ∆H1 = −758 kJ mol−1       ....1)

2C(s) + 2H2(g) → C2H4(g)                           ∆H2 = +52 kJ mol−1        ....2)

H2(g) + O2(g) → H2O(g)                               ∆H3 = −242 kJ mol−1     ....3)

Now, enthalpy of formation of carbon monoxide is given by :

∆H = ∆H1 + ∆H2 - ∆H3

∆H = ( -758 + 52 - ( -242 ) ) kJ mol−1  

∆H = −464 kJ mol−1

Therefore, the enthalpy of formation of carbon monoxide is -464 kJ mol−1.

Hence, this is the required solution.

Answer:3.04

Explanation:Found answer online take my word for it.

Answer:

The answer is

[tex] \huge 4.088 \times {10}^{ - 19} \:J[/tex]

Explanation:

The energy of a photon of light can be found by using the formula

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 6.17 × 10¹⁴ Hz

We have

E = 6.17 × 10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

[tex]4.088 \times {10}^{ - 19} \: \: J[/tex]

Hope this helps you

Answer:

To gain stability

Explanation:

If the outermost shell is not completely filled with electrons, the element has one of the three options: gaining electrons, losing electrons or sharing electrons. By gaining or losing electrons, ionic compounds are produced. Sharing of electrons results in the formation of covalent compounds.

Answer:

The advantages of fossil fuels are that they are abundant and accessible, they provide a large amount of concentrated energy, they are relatively low cost and they can be transported relatively easily.

Hope this helped, if not, don’t hate.

Answer - True

Hope this helps :')

Answer:

O D.A change from one substance to aonther

Explanation:

the formeashon on iron is a chemical change

Answer:

Law

Explanation:

A law is a summary of observed (measurable) behavior, whereas a theory is an explanation of behavior. A law tells what happens; a theory (model) is our attempt to explain why it happens.

Answer:

I will try to solve these problems

Answer:

I think so henterogeneous

The basic oxide is an oxide-forming a base solution.

These oxides are mainly from group 1 alkaline and group 2-alkaline earth

If this oxide is dissolved in water it will form an alkaline solution

LO + H₂O --> L(OH)₂ ---> alkaline earth

L₂O + H₂O --> LOH --> alkaline

So the basic oxides  : Na₂O and MgO

Na₂O + H₂O --> NaOH (sodium hydroxide, strong base)

MgO + H₂O --> Mg(OH)₂ (magnesium hydroxide, strong base)

The aqueous solution of CO₂ , obtained by dissolving CO₂ in water

CO₂ + H₂O --> H₂CO₃ (carbonic acid)

In general, basic oxide is obtained from metal oxide, while acid oxide is obtained from non-metal oxide

Answer:

Gasoline is very volatile and if not kept in a tightly sealed container will quickly fill a space with vapors at a sufficient concentration to be a fire and explosion hazard. Don't even THINK about keeping gasoline in an open container. Well, you can if it is a dense and heavier-than-air gas.

Explanation:

Answer: Jimmy Neutron 's House is host to Jimmy Neutron, Judy Neutron, Hugh Neutron, and Goddard. It is located on one side of the street from Cindy Vortex 's Building, both of which are located in Retroville, Texas, the United States of America, Alaska and Hawaii, North America and Planet Earth. Inhabitant: Jimmy Neutron.

Explanation:

Answer:

d. 3f

Explanation:

An orbital in chemistry is defined as the wave function that defines the position of electrons in an atom.

There are four types of orbitals that include s, p, d, and f. On the basis of the quantum description, 3f orbital does not exist because in the third energy level only three sublevels are present that are s, p, and d that can hold a  maximum of 18 electrons.

Hence, the correct answer is "d.3f".

For the 3 principal orbitals, f suborbital has not been possible. Thus the orbital that could never exist according to the quantum description of the atom is 3f. Thus the correct option is d.

Quantum mechanics helps in the determination of the electron address. The electron address has been given by the 4 quantum numbers namely,

The principal quantum number gives the information to the orbital, and the azimuthal quantum number gives the information of the subshell.

The orbitals have been formed by the mixing of the bonding and anti-bonding orbital. The mixing of the 3 orbital has resulted in the 3 suborbital namely s, p, and d.

Thus for the 3 principal orbitals, f suborbital has not been possible. Thus the orbital that could never exist according to the quantum description of the atom is 3f. Thus the correct option is d.

For more information about the quantum description of atom, refer to the link:

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