Answer the following question by studying the given
structure of the stoma

1)Name the atoms of element
2)In which group of the periodic table do these element lie?​

Answer:

Explanation:

S2Si

O2

C2H4

N2

CBr4

S2

I think these are correct

Answer:

tetrahedral geometry

Explanation:

There are several centers of interest. Each carbon with all single bonds is the center of a tetrahedral geometry.

Answer:

C.) No, because the Moon reflects most of the Sun's light rather than

absorbing it

Explanation:

:p

Answer: Oxidation reaction:  [tex]Al(s)\rightarrow Al^{3+}(aq)+3e^-[/tex]

Reduction reaction:  [tex]Sn^{2+}(aq)+2e^-\rightarrow Sn(s)[/tex]

Overall redox reaction : [tex]2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)[/tex]

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

[tex]Al(s)\rightarrow Al^{3+}(aq)+3e^-[/tex]

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

[tex]Sn^{2+}(aq)+2e^-\rightarrow Sn(s)[/tex]

Overall redox reaction : [tex]2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)[/tex]

Answer:

B. CO₂ and H₂O.

Explanation:

When any organic substance undergoes complete combustion, it produces carbon dioxide (CO₂) and water (H₂O).

In the case of methane, the balanced reaction is:

With the above information in mind the correct answer is option B. CO₂ and H₂O.

When the combustion is incomplete, carbon monoxide (CO) is produced as well.

Answer:

B. CO₂ and H₂O!

Answer:

A weak acid is one that does not dissociate completely in solution; this means that a weak acid does not donate all of its hydrogen ions (H+) in a solution. ... Therefore, the concentration of H+ ions in a weak acid solution is always less than the concentration of the undissociated species, HA.

Explanation:

Hope it helps

FOLLOW MY ACCOUNT PLS PLS

Answer:6.68

Explanation:

Answer:

Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. ... Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin.

Explanation:

Answer:

c

Explanation:

Answer:

The answer is C

Explanation:

Answer:

Currents are physical occurrences or factors that put motion into oceans, making them move back and forth.

Such factors include but may exceed the following:

When there is movement in ocean currents, heat, nutrients, water oxygen levels are also affected.

Cheers

Answer:

A

Explanation:

The coefficents are used when determining mole ratio. So just look in front of O and B

the ratio is 3/4

you cna use this in stoich as well

Answer:

It's critical in the process of cellular respiration

It is critical in the process of cellular respiration; is the correct answer; as water plays a very important role in transportation of oxygen and maintaining cell structure.

The process by which organisms combine food molecules with oxygen to form energy , which is used for life sustaining activities is called Cellular Respiration.

Carbon Di-Oxide and Water are produced as by products.

Water acts as a solvent in facilitating the transport of oxygen in respiration.

At the molecular level, water permits everything inside the cell to have the proper structure which is very important for biological processes.

Hence option B , i.e. It is critical in the process of cellular respiration; is the correct answer.

To know more about Cellular Respiration

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Answer:

An apple.

Explanation:

Hope this helps.

Answer:

91.224 mg of caffeine will be extracted from a 60 mL cup of Turkish coffee (100 mg caffeine) by 40 mL of methylene chloride (CH2Cl2)

Explanation:

The distribution co-efficient of Caffeine for methylene chloride (CH2Cl2)/water (H2O) is   8.4

Volume of Turkish coffee = 60 mL

Volume of methylene chloride (CH2Cl2) = 40 ml

Distribution coefficient is represented by K

[tex]8.4 = \frac{\frac{X}{60}}{\frac{100-X}{50} } \\X = 91.224[/tex] mg

Answer:

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Answer:

I believe the answer is 3. Carbonic acid has 3 more atoms than water.

Explanation:

Because water has 3 atoms and I think Carbonic acid has 6 so 6-3=3.

What is the kinetic energy of a bicycle with a mass of 11 kg traveling 8 m/s ?

Mass (m) of a bicycle is = 11 kg

Speed (v) of a bicycle is = 8 m/s

Kinetic energy (K.E) of a bicycle is = ?

Since, we know,

[tex] \bf K.E \: = \frac{1}{2} \: × \: 11 \: kg \: × \: (8 \: m/s)² [/tex]

[tex] \bf K.E \: = \frac{1}{2} \: × \: 11 \: kg \: × \: 64 \: m²/s²[/tex]

[tex] \bf K.E \: = \frac{704}{2} \: kg \: m²/s² [/tex]

[tex] \bf K.E \: = \: 352 \: kg \: m²/s² [/tex]

Explanation:

..........................m

Answer:

hope that helps

Answer: The empirical formula and the molecular formula of the hydrocarbon is [tex]C_2H_3[/tex] and [tex]C_4H_6[/tex] respectivley.

Explanation:

The chemical equation for the combustion of hydrocarbon having carbon, hydrogen and oxygen follows:

[tex]C_xH_y+O_2\rightarrow CO_2+H_2O[/tex]

where, 'x', 'y'  are the subscripts of Carbon, hydrogen

We are given:

Mass of [tex]CO_2[/tex] = 12.74 g

Mass of [tex]H_2O[/tex]= 3.913 g

Molar mass of carbon dioxide = 44 g/mol

Molar mass of water = 18 g/mol

For calculating the mass of carbon:

In 44g of carbon dioxide, 12 g of carbon is contained.

So, in 12.74 g of carbon dioxide, =[tex]\frac{12}{44}\times 12.74=3.474g[/tex] of carbon will be contained.

For calculating the mass of hydrogen:

In 18g of water, 2 g of hydrogen is contained.

So, in 3.913 g of water, =[tex]\frac{2}{18}\times 3.913=0.435g[/tex] of hydrogen will be contained.  

Mass of C = 3.474 g

Mass of H = 0.435 g

Step 1 : convert given masses into moles.

Moles of C =[tex] \frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{3.474g}{12g/mole}=0.289moles[/tex]

Moles of H=[tex]\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.435g}{1g/mole}=0.435moles[/tex]

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C =[tex]\frac{0.289}{0.289}=1[/tex]

For H =[tex]\frac{0.435}{0.289}=1.5[/tex]

The ratio of C : H = 1: 1.5

The whole number ratio will be = 2: 3

Hence the empirical formula is [tex]C_2H_3[/tex].

The empirical weight of [tex]C_2H_3[/tex] = 2(12.01)+3(1.008)= 27.04 g.

The molecular weight = 54.09 g/mole

Now we have to calculate the molecular formula.

[tex]n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{54.09}{27.04}=2[/tex]

The molecular formula will be=[tex]2\times C_2H_3=C_4H_6[/tex]

Answer: C. Horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increase.

Explanation:

Answer:

C

Explanation:

Answer: bacteria: e Coli

Explanation:

The bacteria and archaea  are microorganisms. Escheria coli, staphylococcus aureus etc are examples of bacteria. Different types of archaea includes bathyarchaeota, thermoproteota etc. Eukaryotes are multicellular organisms such as plants, fungi, animals etc.

Eukaryotes are multicellular organisms with developed cellular organization and developed nucleus. All the higher level organisms such as humans, animals, fungi, plants etc are eukaryotes.

Microorganisms such bacteria are single celled organisms and they are called unicellular having only one cell without a developed nucleus.There are many types of bacteria based on  their structure and functions such as spirulina, staphylococcus, vibrio coli etc.

Archaea is another type of unicellular organism which first classified as type of bacteria, but later they are included in a new class of domain. They are natural methanogens that is they produce methane gas. Some examples are bathyarchaeota, thermoproteota etc.

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Answer:

Due presence of empty as well as heavy particles.

Explanation:

The main reason for this is the presence of empty spaces as well as heavy particles in the nucleus of Helium atom. Most of the beam pass through the helium atom due to the presence of empty spaces in the atom whereas some beams deflect from the helium atom because both repel each other due to same charge i.e. positive charge. Few beams of light bounce back with an angle of 90 degree due hitting with the nucleus where heavy particles such as neutron and proton are present.

Answer:

k

Explanation:

Answer:

it is cylinder as it has two bases but no lateral faces.

Answer:

Explanation:

You're kidding, right?

Earth is a puny little planet stuck in the Milky Way which is not a particularly large galaxy that has millions of stars with many times more our gravitational influence.

We are very lucky that the gravitational force is so weak. Were it not, We would be pulled in every direction imaginable and swallowed many times by larger and larger black holes until our existence could never be traced.

We would be like 1 electron in all the atoms of the Universe combined. There's no end to the size and scope of the forces involved if the gravitational force were even a small bit larger than what it is now.

Answer:

kindly give options

Explanation: