What are some structural adaptations of adult frogs that help them survive in their environment?
Explain how each adaptation helps the frogs.

Answer:

D

Explanation:

Light blubs are not made of fire.

The sun wasnt made by humans.

You cant find Light bulbs in nature.

Meaning it is D.

The sub-atomic particles are not made up of atoms, they have their own identity.

Sub -atomic particles are defined as particles which compose an atom. A sub -atomic particle can be a composite particle composed of other particles or an elementary particle  which is not composed of other particles.

The elementary particles are six flavors of quarks , six types of leptons and twelve gauge Bosons .All sub atomic particles have an electric charge  which is an integer multiple of elementary charge.They are in smaller in size as  compared to atoms.

The three fundamental sub-atomic particles are electrons , protons and neutrons . The smallest known sub-atomic particles to exist are called quarks. Neutrons and protons are the sub-atomic particles which reside in the nucleus and are together called as nucleons.

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Answer:

Left over mass of hydrogen = 0.06 g

Mass of HCl produced = 12.41 g

Explanation:

Given data:

Mass of H₂ = 0.40 g

Mass of Cl₂ = 12.35 g

Mass of left over reactant = ?

Mass of HCl produced = ?

Solution:

Chemical equation:

H₂ + Cl₂    →     2HCl

Number of moles of H₂:

Number of moles = mass / molar mass

Number of moles = 0.40 g/ 2 g/mol

Number of moles = 0.2 mol

Number of moles of Cl₂:

Number of moles = mass / molar mass

Number of moles = 12.35 g/ 71 g/mol

Number of moles = 0.17 mol

Now we will compare the moles of HCl with H₂ and Cl₂.

                     H₂             :            HCl

                      1               :               2

                   0.2              :           2×0.2 = 0.4

                     Cl₂             :             HCl

                      1               :              2

                    0.17           :            2 × 0.17 = 0.34

Chlorine is limiting reactant.

Mass of HCl produced:

Mass = number of moles × molar mass

Mass = 0.34 mol × 36.5 g/mol

Mass = 12.41 g

Leftover mass of hydrogen:

                          Cl₂               :               H₂

                            1                :                 1

                           0.17            :             0.17

Number of moles of H₂ react with Cl₂  are 0.17.

Moles remain unreacted = 0.2 - 0.17 = 0.03 mol

Mass left over:

Mass = number of moles × molar mass

Mass = 0.03 mol × 2 g/mol

Mass = 0.06 g

The sum of the mass of HCl produced plus the mass of left over reactants is:

Mass of hydrogen = 0.06 g

Mass of HCl  = 12.41 g

Given:

Mass of H₂ = 0.40 g

Mass of Cl₂ = 12.35 g

Mass of left over reactant = ?

Mass of HCl produced = ?

Number of moles of H₂:

Number of moles = mass / molar mass

Number of moles = 0.40 g/ 2 g/mol

Number of moles = 0.2 mol

Number of moles of Cl₂:

Number of moles = mass / molar mass

Number of moles = 12.35 g/ 71 g/mol

Number of moles = 0.17 mol

The moles of HCl with H₂ and Cl₂.                

  H₂             :            HCl              

     1              :               2          

     0.2          :           2×0.2 = 0.4                

    Cl₂             :             HCl            

        1             :              2          

       0.17         :          2 × 0.17 = 0.34

The chlorine is limiting reactant.

Mass of HCl produced:

Mass = number of moles × molar mass

Mass = 0.34 mol × 36.5 g/mol

Mass = 12.41 g

Leftover mass of hydrogen:                

         Cl₂               :               H₂            

              1             :                 1          

               0.17       :             0.17

Number of moles of H₂ react with Cl₂  are 0.17.

Moles remain unreacted = 0.2 - 0.17 = 0.03 mol

Mass left over:

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Answer:

A stable compound with a complete octet or electronic configuration

Explanation:

The Periodic table is the arrangements of chemical elements in horizontal rows (called 'Periods') and vertical columns (called 'Groups') based on their various physical and chemical properties.

Elements in the same group have a common quality being that they have the same number of free (valent) electrons in their outermost shell. For example, elements in group 1 all have one valent electron in the outermost shell as compared to elements in group 5 which have five valent electrons in the outermost shell. Therefore the group number tells us the number of valence electrons of all the elements in that group.

Meanwhile, elements in the same period have the same number of outermost shell but an increasing number of valence electrons as one goes across the period from left to right.

Elements form chemical bonds in an effort to achieve chemical stability. Chemical stability is achieved when the shells of the elements are fully filled with electrons and achieved a stable electronic configuration of 2 or 8.

The type of bonds formed depend on the number of valence electrons available for bonding in the outermost shell of the element.

So the element Oxygen for example which has 6 valence electrons, in its outermost shell tends to form covalent bonds (a bond achieved by sharing electrons). It is easier for oxygen to form a covalent bond by sharing its valence electrons with another element than to lose all six valence electrons in order to achieve a stable octet state  

The element Chlorine (Cl, with seven valence electrons) on the other hand tends to form electrovalent or ionic bonds by accepting an electron from a metal element like Sodium (Na) to achieve a complete octet. It is easier for Cl to achieve a stable octet state by accepting an electron than losing all 7 valence electrons.

Therefore, the group number (an indicator of the number of valence electrons in the outermost shell) plus the number of bonds formed equals a stable atom or compound with a complete electronic configuration.

Answer:

20 moles = (96.7+)

345%20 moles inter = h20

h2+345%20 moles

kalkadanc = jani+CARSORI

564 MOLES

Explanation

we have to plus the moles that we can get the answer and u should now the formula of kalkadanc and just % will get to the correct answer.

i think u may understand and this is the correct answer i had practice this too much

Answer:

Both

Explanation:

because salt water comes from water mixing with salt

Answer:

Follows are the solution to this question

In point 1, the answer is "false".

In point 2, the answer is "True".

Explanation:

In point 1:

It's not a response to rain, however, the reaction is also another way.

[tex]NaOH + NH_4NO_3 \longrightarrow NaNO_3 + NH_3 +H_2O \\\\Na^{+} + OH^{-} + NH_4+ +NO_3^{-} \longrightarrow Na^{+} + NO_3^{-} +NH_3 +H_2O \\\\OH^{-} + NH_4^{+} \longrightarrow NH_3 +H_2O[/tex]

In point 2:

They either use the magnetic resonance or gravimetric analytical method with unknown chloride calculation. They utilize plaster to catalyze chloride through aqueous or salty water. It's also called the response to precipitation.

[tex]Ag+(aq) + Cl - (aq) \longrightarrow AgCl(s)[/tex]

Answer:

2

Explanation:

Answer:

atomic number of 12 is MG

Explanation:

Magnesium

Answer:

solids

Explanation:

Answer:

actually its c convection.

Explanation:

my teacher asked the same question but with  diffrent oppstions.

and diffusion is DEFINATALY not the answer. its convection.  

Molecules of air in direct contact with Earth's solid, warm surface absorb heat energy with conduction.

The process by which heat is transmitted from an object's hotter end to its cooler end is known as conduction. The term "thermal conductivity" refers to an object's capacity to transfer heat, and it is represented by the letter k. Along a temperature gradient, heat flows naturally.

When two materials or objects come into direct touch with one another, conduction takes place. More quickly than in a cooler item, the molecules in a warmer one vibrate. The slower molecules clash with the faster vibrating molecules.

Ground-level heat is radiated into the lower atmosphere. In conduction, heat is transferred directly from hotter regions to cooler ones. Warmer molecules bounce vigorously and clash with molecules close by, exchanging energy.

Thus, option A is correct.

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Answer:

c. The scientists’ calculations were incorrect; the energy totals should have been the same.

Explanation:

We must remember that energy can not be created nor destroyed according to the law of conservation of mechanical energy.

The total energy of a body remains a constant throughout its motion. For a body rolling down a ramp, the energy  changes from potential to kinetic + potential and then to kinetic.

In all of these stages of its motion, the total energy of the glass marble remains constant.

Answer:

b

Explanation:

b

Answer:

good luck

Explanation:

Answer:

the sum of the coefficients in the balanced chemical equation is 9

Explanation:

The computation of the sum of the coefficients in the balanced chemical equation is shown below:

here is the balanced chemical equation

[tex]2NH_4NO_3 \rightarrow 4H_2O)g) + 2N_2(g) + 1O_2(g)[/tex]

Now the sum is

= 2 + 4 + 2 + 1

= 9

hence, the sum of the coefficients in the balanced chemical equation is 9

and, the same is to be considered

Answer:

124.1 g/mol

Explanation:

just facts

Answer:

124.1 g/mol

Explanation:

To calculate formula mass, multiply the subscript of each element in the formula by the element's atomic weight (relative atomic mass) found on the periodic table. The unit for formula mass is either u or Da (Daltons).

Answer:

false

Explanation:

longer the wave length less frequency

Answer:

Cell Differentiation and Tissue.

Explanation:

tissues are organized communities of cells that work together to carry out a specific function.

Answer:

1.04 L

Explanation:

Answer: i think it c

Explanation:

electricity from solar panels

Explanation:

All other options produce something after or during the time electricity is made. That something is gas. Not solar

Answer:

As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down. If a liquid is cooled sufficiently, it forms a solid. If a liquid is heated sufficiently, it forms a gas.

Answer:

C:Strontium

Explanation: