Which of the equations show the incomplete combustion of methane?​

Answer: which*

Explanation:

Aristarchus, Copernicus, and Galileo all supported the idea that the planets revolve around the Sun.

The sun is the center of the solar system. All the early astronomers agreed to this fact.

Aristarchus placed the sun at the center of the solar system and postulated the fact that planets rotate in circular orbits around the Sun.

Copernicus in his work published in 1543 also placed the sun at the center of the solar system with Earth and other planets moving around it.

Using the Telescopes he made himself, Galileo also discovered that the sun is at the center of the solar system and planets orbited around the sun and not vice versa.

Therefore; Aristarchus, Copernicus, and Galileo all supported the idea that the planets revolve around the Sun.

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Answer:B

Explanation:i said so

Answer:

true

Explanation:

Solid, liquid and gases are the only three States of matter

Answer:

point 2 and 4

Explanation:

because at those point temperature is constant

Answer:

D. It is limited to situations that involve aqueous solutions or specific compounds.

Explanation:

An Arrhenius acid is a substance that increases the concentration of H3O or H+ when dissolved in water. An Arrhenius base is a substance that increases the concentration of OH- when dissolved in water. These definitions tell us that D is indeed limited to situations that involve aqueous solutions or specific compounds, as aqueous means something that's dissolved in water.

A is wrong because the Bronsted-Lowry interpretation has a wider range of applications. Bronsted-Lowry acids and bases don't even need to be aqueous, so it is not limited to just aqueous solutions. They include any substance that can donate or accept a H+.

B is wrong because A is wrong. A and B basically say the same thing, that the Arrhenius interpretation has a wider range of applications than the Bronsted-Lowry interpretation.

C is wrong because the definition of an Arrhenius base is any substance that increases the concentration of OH-, or hydroxide ions. C completely counters this statement.

Here's photo for proof incase you're doubtful of my answer & explanation. Please click the heart if it helped.

Answer:

Which statement describes the Arrhenius interpretation of acids and bases?

❌ A) It has a wider range of applications than the Bronsted-Lowry interpretation.

❌ B) It has a wider range of applications than the Lewis and Bronsted-Lowry interpretations.

❌ C) It is used in situations that involve bases that do not produce hydroxide ions.

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Answer:

[tex]\% Be=36\%\\\\\% O=64\%[/tex]

Explanation:

Hello!

In this case, since the percent compositions of Be and O in beryllium oxide are computed as shown below:

[tex]\% Be=\frac{m_{Be}}{M_{BeO}} *100\%\\\\\% O=\frac{m_{O}}{M_{BeO}} *100\%[/tex]

Since atomic masses are respectively 9.01 and 16.0 g/mol and the molar mass of the compound is 25.01 g/mol, the resulting percent compositions are:

[tex]\% Be=\frac{9.01}{25.01} *100\%=36\%\\\\\% O=\frac{16.0}{25.01} *100\%=64\%[/tex]

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Answer:

18.066  × 10²³ atoms

Explanation:

Given data:

Number of atoms of Mg = ?

Number of moles of Mg = 3 mol

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

3 mol   ×  6.022 × 10²³ atoms  / 1mol

18.066  × 10²³ atoms

Answer:

Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Answer: Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Answer:

1 Oxygen atom has a mass of 16 grams, thus diatomic oxygen weights twice as much- 32 grams. Hence 32 grams is needed.

Answer:

yes thats right

Explanation:

Explanation:

2 C(s) + 3 H2(g) = C2H6(g)

Answer:

The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. Chemically distinct from the underlying mantle.

Answer:

Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. ... They also have a cell wall that provides structural support.

Answer: 2) Electron X absorbs energy when it changes to a higher energy level.

Explanation:

The electrons in an atom exist in various energy levels. When an electron moves from a lower energy level to a higher energy level, energy is absorbed by the atom. When an electron moves from a higher to a lower energy level, energy is released (often as light).

Answer:

Independent variable

Explanation:

Answer:

True. the density of water is 1.0 mg

Answer:

A campfire is an example of entropy. The solid wood burns and becomes ash, smoke and gases, all of which spread energy outwards more easily than the solid fuel. Ice melting, salt or sugar dissolving, making popcorn and boiling water for tea are processes with increasing entropy in your kitchen.

Explanation:

If this helped you, the please mark me the brainliest.

Answer:

of 7 I guess the and is 2 I don't know anything about 8

Answer:

D. The heat speeds up a physical change, causing the liquid to turn into a gas.

Explanation:

Answer:

Exfoliation involves the removal of the oldest dead skin cells on the skin's outermost surface. Exfoliation is involved in all facials, during microdermabrasion or chemical peels. Exfoliation can be achieved by mechanical or chemical means.

Explanation:

I did copy off internet!

:P

Answer:

C

Explanation:

If there is no heat to transfer from one bottle to the other, then both bottles are at an equilibrium. This just means that they're both on the same thermal energy level.

Answer:

a. polar solutes dissolve in polar solvents.

Explanation:

Polarity is a phenomenon that has to do with the positive and negative electric (ionic) charges of a molecule. A molecule with distinct positive and electric charge is said to be POLAR. However, water is said to be a universal solvent because it dissolves more substances than any other solvent can.

This solvent property of water is a function of its POLARITY. Polar solutes dissolve in polar solvents. Hence, only polar solutes can dissolve in water (a polar solvent). Hence, in this case, CH3OCH3 (ether) will dissolve in water because it is a POLAR molecule/solute.

Answer:

Arsenic

Explanation:

The atom that has the lowest first ionization energy is Arsenic.

The first ionization energy is the energy needed to remove the most loosely bound electron of an atom in the gas phase in the ground state.

Ionization energy generally deals with the measure of the readiness of an atom to lose an electron.

Answer:

a marble about to reach the bottom of the slope

Explanation:

hope this helps

Answer:

See explanation below

Explanation:

This question is incomplete because you are not putting the compounds you are talking here. However, I manage to find this question, and the first image below is the whole question.

Now, According to this question, we have the same compound. The difference between them is that compound 1 has the CO2H in axial direction, while compound 2 has it in equatorial direction.

As they are both, you can easily say that compound 1 is more acidic because the formed anion of CO2H, which is the CO2- is stabilized by hidrogen bonding that is formed between the OH and the CO2H. As you can see, in compound 1 they are both pointing at the same direction so an hydrogen bonding is easily formed, and this gives more stability to thw whole compound, thus, a better acid.

On the contrary, compound 2 has the CO2H in a not so suitable orientation, so the possible hydrogen bonding there cannot be formed, so the anion cannot be stabilized by this force, thus, is less acidic than compound 1.

Hope this helps

Answer:

[tex]E=1.48x10^4J[/tex]

Explanation:

Hello!

In this case, since the energy implied in a heating process is computed by using the following equation:

[tex]E=mC(T_f-T_i)[/tex]

Whereas m is the mass, C the specific heat and T the temperature. In such a way, by plugging in the given mass, specific heat and temperatures, we obtain the following energy:

[tex]E=187.0g*4.703\frac{J}{g\°C} (52.9\°C-36.1\°C)\\\\E=1.48x10^4J[/tex]

Considering that the specific heat can by used by unit of °C or K because their difference is equivalent.

Regards!

Answer:

metals and non metals respectively.