How bad of alcoholic do you have to be to have your brain affected​

The shape of the periodic table is related to the electron configuration of elements by the arrangement of periods which can be used to guess the highest energy levels of the atom. Additionally, the group to which an atom belongs is the number of Valence electrons it has.

The periodic table is a systematic arrangement of elements in order of their atomic number with a set of 7 rows called periods and a set of 8 or 18 Columns called Groups.

Ultimately, the s-, p-, d-, and f- group elements are visibly arranged and can be identified from the shape of the periodic table.

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Answer:

The sun reflects off different parts of the moon as it orbits the earth

Explanation:

Answer:

the sun reflects off different parts of the moon as it orbits the Earth.

There are 4 moles of spectator ions that remain in solution.

The equation of the reaction is;

Na2CO3(aq) + Pb(NO3)2(aq) -------> PbCO3(s) + 2NaNO3(aq)

We have to determine the limiting reactant. This is the reactant that yields the least amount of product. Note that the spectator ions are Na^+ and NO3^- that form NaNO3.

For Na2CO3

1 mole of Na2CO3 yields 2 moles of NaNO3

3 moles of Na2CO3 yields  3 × 2/1 = 6 moles of NaNO3

For Pb(NO3)2

1 mole of Pb(NO3)2 yields 2 moles of NaNO3

2 moles of Pb(NO3)2 yields 2 × 2/1 = 4 moles of NaNO3

We can see that Pb(NO3)2 is the limiting reactant.

Since [NaNO3] = [Na^+] = [NO3^-], it follows that there are 4 moles of spectator ions that remain in solution.

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Answer:

D.) Atoms.

I hope this helps! :)

Answer:

0.027

Explanation:

the beginning of each word (milli) just means a thousand.

take both number 27s and divide by 1000

it should be 0.027 for both.

you can also just ppretend there is a decimal place after 27 and move it to the left 3 spaces

Answer:

Explanation:

Answer:

a

Explanation:

its formed from sodium and sodium metal is produced by electrolysis of dry molten sodium chloride.

Answer:

Whistle 2 has a lower pitch, but is louder.

Whistle 3 has higher pitch and is less loud.

Explanation:

The more frequent the arches are the higher the pitch.

The larger the amplitude the louder the sound is.

;D

Answer: Phosphorus (P)

Explanation: Phosphorous has 5 valence electrons so it will share some to become stable.

Answer: Phosphorus(P)

Answer:

ELECTRONEGATIVITY is the tendency of an atom in the molecule to attract the bonded pair of electrons .

Explanation:

it might help you!!!!!!

Answer:

the relative strength with which an element attracts electrons in a chemical bond

Explanation:

Answer: Substances giving off heat and light, themselves, is always chemical. What we see in the sky are new colors and light. 1. Changing the size and shapes of pieces of wood would be a chemical change. 2. In a physical change, the makeup of matter is changed.

Explanation:

The atomic number of fluorine is 9.

The charge number of an atomic nucleus is known as the atomic number or nuclear charge number of a chemical element. It will be is equal to the proton number of every atom of that element, for ordinary nuclei. Atomic number helps to getting information of elements with the aid of periodic table.

Atomic number = count of proton

It is known that the atomic number of fluorine is 9 . therefore, the answer will be atomic number.

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Answer:

a. Calcium: [Ar]4s^2

or 1s^2 2s^2 2p^6 3s^2 3p^6 (= Argon) 4s^2

b. Xenon

c. Zinc

d. Carbon

Explanation:

Group 2A = Alkaline Earth; period 4 shows that the element will be calcium.

To write the Electron Configuration we remember that Columns 1&2 and Helium represent the s-orbital which holds a maximum of 2 electrons. Columns 13 through 18 fill the p-orbital.

Answer:

A because even if its a minor cut, it's always a better choice to inform someone.

i think the answer is B. scientists used evidence, analysis, and experiments to disprove Alchemy. apologies if its incorrect.

Melting points of enantiomers will not compare to each other as they have same M.P. and Diastereoisomers are compared on the basis of melting point.

Stereoisomers are those isomers which are having the same molecular formula but different spatial arrangemet of atoms within the molecule.

Hence, only diastereoisomers are compared on the basis of melting point.

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Explanation:

Chlorine is a non metal so covalent bond. KBr has K metal and Br non metal of opp. charges so ionic bond. Na is a metal so ionic bond. NaCl has Na as metal and Cl as a non metal so ionic bond.

D is incorrect

Answer:

The series of chemical reactions that are used to change natural resources into synthetic products is called chemical synthesis. To make a "natural" product, the natural resource is not chemically changed as much. ... For example, the synthetic material plastic is made from petroleum, which is pumped out of the earth.

Explanation:

give brainliest!!!!

The use of synthetic products impact the natural resources from which they are derived by depleting the natural resource and causing harm to it.

Resources which are obtained  from nature by a few modifications in them are called natural resources.These are resources which are available in nature . Every synthetic product is composed of natural resources.

It may exist in a form of separate entity or in form of living-beings or the can even be transformed into products which are of economic importance.Because of the transformation of natural resources into products of economic importance they are getting depleted at a rate  which much times greater than the rate it was getting depleted several years ago.

As the products available today comprise  of synthetic products natural resources are getting depleted which is becoming a global concern.

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The force exerted on the parked car by the moving car is –30000 N

To solve this question, we'll begin by calculating the deceleration of the moving car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 0.5 s

[tex]a = \frac{v - u}{t} \\\\ a = \frac{0 - 10}{0.5}\\\\a = \frac{- 10}{0.5}[/tex]

Finally, we shall determine the force exerted by the moving car on the parked car. This can be obtained as follow:

Mass of moving car (m) = 1500 Kg

Acceleration (a) = - 20 m/s

F = ma

F = 1500 × (-20)

NOTE: The negative sign indicate force is in opposite direction to the parked car.

Therefore, the force exerted on the parked car by the moving car is –30000 N

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Answer:

The filter flask and the vacuum trap consist of heavy-walled glassware. You should use thick-walled tubings as well. Normal tubing that you use as water hoses will collapse under vacuum.

For vacuum filtration, thick walled tubings are best as they can withstand the pressure which is applied during filtration.

It is a filtration technique which works faster .This is because water is suck  out the air in the vacuum flask and Buchner funnel by flowing it through the aspirator.

Filter at the bottom separates the solids from the liquids.Solid residue at top of funnel can be easily dried. The filtration takes place effeciently in presence of vacuum .

There is a rubber conical seal  which ensures that the apparatus is hermetically closed,maintains vacuum  in apparatus and avoids physical points of stresses.

Vacuum filtration is faster than gravity filtration and is more efficient leading to purer liquid. It is of much importance in crystallization.

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Answer:

Atomic mass. 207.2 g.mol -1. Electronegativity according to Pauling. 1.8. Density. 11.34 g.cm-3 at 20°C. Melting point. 327 °C. Boiling point. 1755 °C.

Explanation:

i think

Answer:

Although the terms mass percent and percent composition are used interchangeably, they are different terms. The mass percent refers to the percentage of a component in a mixture, while the percent composition refers to the percentage of a particular chemical element in a mixture.

Explanation:

Hope this helps...

Answer:

Nice experiment

Explanation:

Answer:

transmission clutches

Answer:

Answer is 46.00%

Explanation:

absolute mass= A1F1 +A2F2

100

42.8452= 44×8% + 41×( 100--F2)

100

so you get

F2= 46.00%

am not sure

Answer:

..

...

....

Explanation:

hop it helps.....

Answer:

24

Explanation:

Answer:

Plant cells have a cell wall and chloroplasts; animal cells do not have either of these structures.

Explanation:

A major difference between a plant cell and an animal cell is presence of chloroplasts in plant cells. Another key difference between plant and animal cells is the presence of a cell wall in plant cells. Both structures are absent in an animal cells.

The cell wall surrounds the plasma membrane of plant cells. This helps to provide the required tensile strength and protection against mechanical and osmotic stress.

Cell walls also help plants to maintain shape and rigidity.

Answer:

1) Plant cells have a cell wall to strengthen the cell

2) Chloroplasts are the site of photosynthesis (turning light energy in sugar) so there would eb a lot more in the leaves that get sunlight than the roots which are underground and receive no sunlight

3) Mitochondria and nucleus

4) No. Some microorganisms are useful to humans, such as the bacteria that create yoghurt, or fungi such as penicillin which are antibiotics, which help us fight bacterial infections

1. is Igneous rock

2. is underneath Earths surface

3. is Coarsed-grained

hope this help!!^^

The kind of rocks is igneous rocks formed along the sides of volcano  and are coarsed-grain rocks.

Igneous rocks are one of the three main rock types the other two including sedimentary and metamorphic rocks.These rocks are formed by cooling and solidification of lava or magma.

The magma is derived from partial melts in the planet's mantle or crust.Melting is caused by increase in temperature or decrease in pressure or even change in composition.Solidification occurs either below surface which is called as intrusive rocks or on the surface as extrusive rocks.

They are classified according to their texture,mode of occurrence,chemical composition,geometry and mineralogy of rock.The two important variables for classification are mineral composition and cooling history.

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