30 POINTS HELPP PLEASE

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Answer:biotic, like food, mates, and competition with other organisms for resources.

Explanation:

Explanation:

In this element, there are:

We find the element with atomic number 11, which is Sodium. (Na)

Answer: sodium

Explanation:

Answer:

3.269 kg

Explanation:

1000g = 1 kg. Since kg is the larger unit, you need to divide by 1000 to get kilograms. You can do the problem as a unit conversion:

3269 g × 1 kg  =  3.269 kg

                1000g

Hope this is helpful!

Answer:

Fewer bubbles will be produced because of fewer collisions of reactant molecules

Explanation:

As the solid dissolves into the solution after the liquid has been vigorously bubbled, if the temperature of the liquid is reduced a little, what will happen is that fewer bubbles will be produced as a result of lesser amount of collisions occurring between the reactant molecules

Answer:

0.00212 kgs

Explanation:

one gram is equal to 0.001 kilograms

Answer:

magnetic spin

Explanation:

the magnetic spin quantum number i.e + 1/2 or-1/2 ...those are all the orbitals in agiven shell simolarly contains it

Answer:

principal

Explanation:

The quantum numbers that are used in the identification of an electron are n, l, m, and s.

n= principle quantum number

l= azimuthal quantum number

m= magnetic quantum number

s= spin quantum number

All the orbitals in a given subshell have the same value of n(principle quantum number) and l( azimuthal quantum number).

Answer:

The pH scale is often said to range from 0 to 14, and most solutions do fall within this range, although it's possible to get a pH below 0 or above 14. Anything below 7.0 is acidic, and anything above 7.0 is alkaline, or basic.

Explanation:

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The pH value that indicates a basic solution is if the pH of solution lies between 7 to 14 in the pH scale.

Basic solution is a solution whose pH is more than 7, indicating that it is alkaline or basic in nature. Basic solutions have a lower concentration of hydrogen ions [tex]\rm (H^+)[/tex] than pure water, which has a neutral pH of 7.0.

Basic solutions can be created by dissolving certain salts or bases in water, such as sodium hydroxide (NaOH) or potassium hydroxide (KOH).

Therefore, if the pH of a solution is more than 7 it is said to be basic in nature.

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Answer:

1) digestion

2) hydroxide ion

3) neutralization

4) pH scale

5) hydrogen ion

6) chemical digestion

7) mechanical digestion

8) salt

Explanation:

I might be wrong though.

Answer:

1) digestion

2) hydroxide ion

3) neutralization

4) pH scale

5) hydrogen ion

6) chemical digestion

7) mechanical digestion

8) salt

Explanation: I just saw this ik its probably really late but i just decied

to give it a try

Answer:

21.44× 10² atoms

Explanation:

Number of chromium atoms = ?

Moles of potassium chromate = 3.56 × 10⁻²¹ mol

Solution:

1 mole of K₂CrO₄ contain 1 mole of Cr.

3.56 × 10⁻²¹ moles of K₂CrO₄ contain 3.56 × 10⁻²¹  moles of Cr.

Number of atoms of Cr:

1 mole contain 6.022× 10²³ atoms

3.56 × 10⁻²¹ mole ×  6.022× 10²³ atoms / 1mol

21.44× 10² atoms or 2144 atoms

Answer:

a & b both are correct. But if you want only one answer, then it's 'a'

Answer:  Protons

Explanation:

Answer:

323 m.

Explanation:

From the question given above, the following data were:

Frequency (f) = 930 KHz

Wavelength (λ) =?

Next, we shall convert 930 KHz to Hz. This can be obtained as follow:

1 KHz = 1000 Hz

Therefore,

930 KHz = 930 KHz × 1000 Hz / 1 KHz

930 KHz = 93×10⁴ Hz

Thus, 930 KHz is equivalent to 93×10⁴ Hz

Wavelength (λ) of a wave and the frequency (f) are related according to the equation:

Velocity = wavelength × frequency

v = λf

With the above formula, we can obtain the wavelength of radio wave as follow:

Frequency (f) = 93×10⁴ Hz

Velocity (v) of electromagnetic wave = 3×10⁸ m/s

Wavelength (λ) =?

v = λf

3×10⁸ = λ × 93×10⁴

Divide both side by 93×10⁴

λ = 3×10⁸ / 93×10⁴

λ = 323 m

Thus, the wavelength of the radio wave is 323 m

Answer:

[tex]Q_{vap}=7.90x10^5J[/tex]

Explanation:

Hello!

In this case, since this is the vaporization process of water, we need to keep in mind that the enthalpy of vaporization of this compound is 2.256 kJ/g, for 350 g, we obtain:

[tex]Q_{vap}=m*\Delta H_{vap}\\\\Q_{vap}=350g*2.256\frac{kJ}{g} *\frac{1000J}{1kJ} \\\\Q_{vap}=7.90x10^5J[/tex]

Because the process is carried out at 100 °C, the boiling temperature of water, already.

Best regards!

Answer:

506.912 L

Explanation:

From the question given above, the following data were obtained:

Number of mole of O₂ = 22.63 moles

Volume of O₂ =?

Recall:

1 mole of a gas occupy 22.4 L at STP.

With the above information, we obtained the volume occupied by 22.63 moles of O₂ as follow:

1 mole of O₂ occupied 22.4 L at STP.

Therefore, 22.63 moles of O₂ will occupy = 22.63 × 22.4 = 506.912 L at STP.

Thus, 22.63 moles of O₂ is equivalent to 506.912 L.

Answer:

Structure

Explained:

Answer:

d

Explanation:

a p e x :)

Answer:

I think it is a

Explanation:

Plasma is the fourth fundamental state of matter after solid, liquid and gas. At this stage of matter it exists in the form of a gas of ions and free electrons and is highly electrically conductive. Although plasma is abundant in the universe, natural occurrences are relatively rare here on Earth.

Explanation:

light blue is the answer second one

Answer:

[tex]\lambda=314\times 10^{-2}\ m[/tex]

Explanation:

Given that,

Frequency, f = 95.5 MHz

We need to find the wavelength of a radio station emitting its signal.

The relation between the frequency and the wavelength is given by :

[tex]c=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{95.5\times 10^6}\\\\=3.14\ m[/tex]

or

[tex]\lambda=314\times 10^{-2}\ m[/tex]

So, the wavelength of a radio station is [tex]314\times 10^{-2}\ m[/tex].

Answer:

λ   = 1×10²⁶m

Explanation:

Given data:

Wavelength of radiation =  ?

Frequency of radiation = 3×10⁻¹⁸Hz

Solution:

Formula:

c = f × λ

c = speed of wave = 3×10⁸ m/s

by putting values,

3×10⁸ m/s =   3×10⁻¹⁸Hz  × λ

λ  =  3×10⁸ m/s /  3×10⁻¹⁸s⁻¹

λ   = 1×10²⁶m

Seismic waves can move through both empty space and matter. Electromagnetic waves differ from sound waves in this regard because they do not require molecules to move.

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Answer:

wave length=speed/frequency

=345/229

Answer:

Compound

Explanation:

Compounds – Compounds are chemical substances made up of two or more elements that are chemically bound together in a fixed ratio.

Example of compounds includes water (H2O), Hydrogen Peroxide (H2O2), etc. You could see water’s chemical formula, it says it has 2 atoms of Hydrogen combined with 1 atom of oxygen and in hydrogen peroxide, it has 2 atoms of hydrogen and two atoms of oxygen.

Answer:

In order to figure out how many molecules of water are present in that  

48.90-g

sample, you first need to determine how many moles of water you have there.

As you know, a mole is simply a very large collection of molecules. In order to have one mole of something, you need to have exactly  

6.022

⋅

10

23

molecules of that something - this is known as Avogadro's number.

In order to get to moles, you must use water's molar mass. A substance's molar mass tells you the mass of one mole of molecules of said substance.

Water has a molar mass of  

18.015 g/mol

. This means that one mole of water molecules has a mass of  

18.015 g

.

So, to sum this up,  

6.022

⋅

10

23

molecules of water will amount to  

1 mole

of water, which in turn will have a mass of  

18.015 g

.

Explanation:

Answer:

A: plants give off water vapor as a waste product as they process energy

Explanation:

Evapotranspiration in plants is defined as the process whereby water is evaporated from its leaves through transpiration during the process of photosynthesis. Different factors like wind, humidity, temperature and availability of water could make it vary.

Comparing all the options, to this definition, the correct answer is Option A.

Answer:

All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.

Answer:

1 kinetic and potential 3 reflective transparent

Answer:

a cluster of sunspots will results in extreme solar flares that can cause mass disruption of electronics on earth.

"Spherical: Bacteria shaped like a ball are called cocci, and a single bacterium is a coccus. Examples include the streptococcus group, responsible for “strep throat.”

Rod-shaped: These are known as bacilli (singular bacillus). ...

Spiral: These are known as spirilla (singular spirillus). " - Medical News Today

Answer:

Please check with the attachment posted.

Please do confirm the answer.

Answer: emission spectrum

Explanation: