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Answer:

C) A constant that states how many atoms/molecules are in one mole of anything

Explanation:

Avogadro's number like the name suggests is a constant that states how many atoms/molecules are in one mole of anything.

Answer:

Tipo de enlace enlace en CO2 - Covalente

Tipo de enlace enlace en KCl - iónico

Tipo de enlace enlace en H2O: enlaces covalentes y de hidrógeno

Electronegatividad de CO2 - Diferencia en electronegatividad de carbono (EN = 2.5) y oxígeno (EN = 3.5) = 3.5 - 2.5 = 1

Diferencia en electronegatividad de KCl = 3,2 -0,8 = 2,4

Diferencia en electronegatividad de H2O = 3.5 -2.1 = 1.4

Explanation:

Tipo de enlace enlace en CO2 - Covalente

Tipo de enlace enlace en KCl - iónico

Tipo de enlace enlace en H2O: enlaces covalentes y de hidrógeno

Electronegatividad de CO2 - Diferencia en electronegatividad de carbono (EN = 2.5) y oxígeno (EN = 3.5) = 3.5 - 2.5 = 1

Diferencia en electronegatividad de KCl = 3,2 -0,8 = 2,4

Diferencia en electronegatividad de H2O = 3.5 -2.1 = 1.4

Answer:

.5 M

Explanation:

molarity = moles / liters

2.5/5 = .5 M

Answer:

NaOH+ N2O3---> NaNO2 + H2O

Answer:

80 N

Explanation:

you can multiple

force equal to mass x gravity

Answer:

Explanation:

Heterozygous cross with a hom.ozygous recessive yields the following results

50% rr (hom.ogyzous recessive)

50% Rr (heterozygous dominant)

A heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

Crossing over is a type of cellular process which occurs during the process of meiosis when chromosomes of the same type line up. When these two chromosomes – one from the mother and one from the father – line up, parts of the chromosome can be switched. Two chromosomes contain the same genes, but the genes may have different forms.

The organisms in this initial hybridization are called the parental or P generation. The progeny of the Rr x rr cross are called F1 generation which will have a heterozygous cross with the homozygous recessive giving the following results: 50% Rr (homozygous recessive) and 50% rr (heterozygous dominant)

A cross between two of the offspring in F1 generation would produce a new set of progeny called second filial generation (or F2 generation).

Thus, a heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

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Answer:

There are 3 significant figures on this one.

Answer:

x is HCl because pH = 2 (acid and it reacted with Mg plus it turned litmus paper to red)

y is NaOH because pH = 10 (base and turned litmus paper to blue)

z is NaCl because pH = 7 (neutral and no reaction to litmus paper and Mg)

Answer:

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Answer:

2-Methylhexane

Because Ethylexane does not have hydrogen molecules neither,also it only has 2 options but they're just repeated

Explanation:

number of moles = number of particle/ 6.02X10^23

= 12.044 X 10^24/6.02×10^23

=20.0066 moles so round it up to 3 S.F

So

=20.0moles

Answer:

    Try a grams calculator, Its pretty to nd one :D

Explanation:

Answer:

The correct answer is - Mosquitoes transmit the virus as parasites which feed on the blood of host organisms and inject the virus during feeding.

Explanation:

According to the CDC, the seasonal West Nile virus is caused by the mosquitoes of freshwater transmit this disease to humans and others. These mosquitoes are feed on the birds and pick these viruses.

These viruses stick on mosquitoes and when they feed on the blood of humans they transmit these viruses by injecting viruses into the blood of humans.

Answer:

HCl, H2O, and NH3 are the most polar of these, so they won't behave ideally because the particles have greater attractive forces between them. How does the kinetic-molecular theory explain the pressure exerted by gases? ... Particles are always in motion and when they are contained, they are elastic collisions.

The particles have high intermolecular forces, reducing the elasticity of their collisions.

Polar molecules are formed when a high electronegative atom combined with a less electronegative atom.

Ammonia, sulfur dioxide, hydrogen sulfide, are polar gases.

The non-polar gases are inert gas or noble gas.

The polar compounds are asymmetrically array.

Thus, the correct option is 4, The particles have high intermolecular forces, reducing the elasticity of their collisions.

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Answer:

Metal

Non-metal

Explanation:

Ionic compounds are said to be formed when metals donate electrons to non metals.

The metals become positively charged while the nonmetals become negatively charged.

CaF2 is composed of Ca^2+ and F^-. Calcium is a metal of group 2 in the periodic table while F is a nonmetal of group 17 in the periodic table.

Hence CaF2 is composed of a metal and a nonmetal.

Answer:

temperature of a metal is29.8

temp. of water is 6.2

temp. change of metal -40.6

Explanation:

Answer:

[tex]98 \times x6x \geqslant {36461 { {3 \frac{ \sqrt[ |?| ]{?} }{?} }^{2} }^{?} }^{2} [/tex]

okay

The average rainfall varies from place to place. However, the average rainfall is about 10-20 inches.

Rain fall refers to a situation in which the water that is found at the surface of the earth is evaporated, condenses in the atmosphere and then falls again to the surface of the earth as precipitation or rainfall. It is an essential component of the water cycle.

We know that the average rainfall varies from place to place. However, the average rainfall is about 10-20 inches.

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Answer:

Al is oxidized

Cu is reduced

Answer:

here

Cu is reduced

and

Al is oxidised

hope this will help you

have a nice day

Answer: Petah is the leader of the gang. They take him in, feed him, and allow him to sleep in the pipes by the river ith them. As he learns to fend for himself he leaves the pain of the past behind even ridding himself of his forer name, deeming himself Tsotsi-gangster.

Explanation:

Explanation:

The mass of one mole of a substance, expressed in gms, is equal to the mean molecular mass of the substance. The molecular mass of CO2= 12+2x16= 44 so the mass if a mole of CO2 is approximately 44 grams.

Hope it helps!!!...

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Answer:

The answer is "[tex]K_1 < K_2[/tex]"

Explanation:

In the given question, the value of the [tex]K=Ae^{-\frac{Ea}{RT}}[/tex] and the [tex]T_1 <T_2[/tex]is the rate value which is the constant that is  [tex]K_2>K_1[/tex]. As per the temperature value when its increase rate is constantly increasing. [tex]E_a[/tex] is activation energy it is not dependent on the temperature that why the answer is [tex]K_1 < K_2[/tex].

Answer:

Explanation:

is the

Answer:

Plants and animals are pH sensitive. The growth of plants is dependent on the nature of the soil. If the pH of the soil is greater than 7 and is alkaline, then the plants cannot grow in the soil.

Explanation:

Answer:

I believe the answer is A (changes in air temperature  result in differences in air pressure which causes wind). Hope this helps

Explanation: