When is a chemical equation considered balanced

Answer:

False did the test on egde

Answer:

mountain range formation, and seafloor spreading

Explanation:

I TOOK THE TEST!!

and it was right

Answer:

yeasts, moulds, bread, beer, wine, ...

Explanation:

Answer:

Mass and speed

Explanation:

Answer: B. Volcanic eruption

Explanation:

A volcano is firmed when molten rocks is formed to the surface of the Earth. Volcanoes release molten rocks, ash, and gases to the Earth's surface.

Volcanoes are agents of change as the eruptions lead to the formation of new landforms and also destroy several things that they come in contact with.

Volcanic eruptions also occurs due to plate tectonics. Other events that happen due to plate tectonics also include earthquakes, and tsunamis.

Answer:B

Explanation:

Answer:

She will have an active imagination.

Explanation:

I took the test and i got 90%

But this one is right, hope this helps ( :

Answer:

a

Explanation:

give the person above me brainlest :)

Answer:

O=C=O

Explanation:

PLATO ANSWER

In carbon dioxide (CO₂), bonding occurs through a combination of covalent and double covalent bonds between the carbon atom and the oxygen atoms.

Carbon dioxide is a linear molecule composed of one carbon (C) atom and two oxygen (O) atoms. Each oxygen atom shares a double bond with the central carbon atom, resulting in a stable molecular structure.

Covalent bonding involves the sharing of electrons between atoms to achieve a stable electron configuration. In the case of carbon dioxide, each oxygen atom shares four electrons with the carbon atom, and the carbon atom shares four electrons overall with the two oxygen atoms.

The image is attached below.

Learn more about carbon dioxide, here:

https://brainly.com/question/14581272

#SPJ4

Answer:

An amide and water are the products formed

Explanation:

Here, we want to know the possible products that could be formed from the reaction of a carboxylic acid with an amine.

An anime has the functional group NH2 while for an organic acids, we have COOH.

So essentially we want to know the result of these two functional groups coming together to react.

The reaction between these two will form an amide in conjunction with water.

Take for example;

R-COOH + R’-NH2 ———> R-COHN -R’ + H2O

Where R and R’ may be the same or different alkyl or aryl groups

Answer:

208.125g

Explanation:

Given parameters:

 Number of moles of HCl = 3.75moles

Unknown:

 Mass of CaCl₂ that will be produced = ?

Solution:

The reaction equation is given as:

  2HCl  + Ca(OH)₂   →   CaCl₂ + 2H₂O

Now, to find the mass of CaCl₂, we have to work from the known to the unknown.

The known specie here is the number of moles of HCl;

        2 mole of HCl will produce 1 mole of  CaCl₂

       3.75moles of HCl will produce [tex]\frac{3.75}{2}[/tex]   = 1.875moles

The mass of  CaCl₂;

  Mass of  CaCl₂ = number of moles of  CaCl₂ x molar mass

Molar mass of  CaCl₂ = 40 + 2(35.5) = 111g/mol

  Mass of  CaCl₂ = 1.875 x 111 = 208.125g

Answer:

The density of muffin is 0.2 g/ cm³.

Explanation:

Given data:

Mass of muffin = 100 g

Volume of muffin = 500 cm³

Density of muffin = ?

Solution:

Density is equal to the mass of an object divided by its volume.

Formula:

d = m/v

Now we will put the values in formula.

d = 100 g/ 500 cm³

d = 0.2 g/ cm³

The density of muffin is 0.2 g/ cm³.

Answer:

Purple light.

Yellow light.

Explanation:

Answer:

There was more erosion in the Colorado Rockies scenario where there was steady rain compared to the scenario in the same area where there was only a drizzle. There is more erosion because the steady rain increased the volume of the river more than the drizzle did. Because there was more water added to the river, the river flowed faster. The faster a river flows, the more sediments it transports or erodes.

Explanation:

Edge

There was greater erosion inside the Colorado Rockies situation when there was persistent rain.

Erosion is the loss of soil or rock from the Earth's crust's surface, as well as the movement of the removed material by natural forces (such as wind or water). The term "erosion" is used in its broadest sense to refer to the overall thinning and moulding of all landmasses on the surface of the planet, such as the corrosion of rock in its natural position, the vehicles and public of weathered material, as well as erosion brought on by wind action, marine, as well as glacial processes.

In contrast to the situation within the identical region where there was simply a drizzle, there was greater erosion inside the Colorado Rockies situation when there was persistent rain. Because the volume of a river was raised by the constant rain more than by the drizzle, there is more erosion. The river flowed more quickly as a result of the additional water. A river transfers or erodes more material the quicker it runs.

Therefore, there was greater erosion inside the Colorado Rockies situation when there was persistent rain.

To know more about erosion, here:

https://brainly.com/question/7567484

#SPJ2

Answer:

Hey sorry if i took too long but I believe it is A

Explanation: sorry if im wrong

hope this helps

Answer:

It is A

UW

Explanation:

Answer:

the law of conversation of mass States that mass is an isolated system is neither created or destroyed by chemical reactions or physical transformations. according to the law of conversation of mass the mass of the product in a chemical reaction must equal to the mass of reactants

hope It helped you

Answer:

C₃H₈ + 5 O₂ ⇒ 3 CO₂ + 4 H₂O

2 C₃H₈ + 10 O₂ ⇒ 6 CO₂ + 8 H₂O

Explanation:

The combustion reaction is when propane reacts to oxygen to form a compound of carbon and water. If the product of carbon is carbon dioxide, the combustion is called complete. Let's considered the unbalanced combustion reaction.

(Note: I assume is C₃H₈, propane, because C₃H₁₈ doesn´t exist).

C₃H₈ + O₂ ⇒ CO₂ + H₂O

We will start balancing C and H that are just in 1 compound on each side, and finally we will balance O atoms. One way to do so is:

C₃H₈ + 5 O₂ ⇒ 3 CO₂ + 4 H₂O

We can get a different way of balancing the equation if we, for instance, multiply all the stoichiometric coefficients by 2.

2 C₃H₈ + 10 O₂ ⇒ 6 CO₂ + 8 H₂O

Answer: It's D

Explanation:

Answer:f has 14 electrons in 7 sublevel orbitals,d has 10 electrons in 5 sublevel orbitals,p has 6 electrons in 3 sublevel orbitals,s has 2 electrons in 1 sublevel orbital.

Explanation:

Answer:

14 i think

Explanation:

i googled it

Answer: the correct answer would be the last option, C6H12O6 and O2

Explanation:

Answer:

it should be 2

Explanation:

Answer:

see the pic for the answer

Taking into account the definition of ionization energy, the atoms in order of increasing first ionization energies will be: Rb, Mg, B, N, F

Electrons are held in atoms by their attraction to the nucleus, which means that energy is needed to remove an electron from the atom.

Ionization energy, also called ionization potential, is the necessary energy that must be supplied to a neutral, gaseous, ground-state atom to remove an electron from an atom. When an electron is removed from a neutral atom, a cation with a charge equal to +1 is formed.

The further away the electron is from the nucleus, the easier it is to remove it, that is, the less energy is needed.

In a group, the ionization energy increases upwards because when passing from one element to the bottom, it contains one more layer of electrons. Therefore, the valence layer electrons, being further away from the nucleus, will be less attracted to it and it will cost less energy to remove them.

In the same period, in general, it increases as you shift to the right. This is because the elements in this way have a tendency to gain electrons and therefore it will cost much more to tear them off than those on the left which, having few electrons in the last layer will cost them much less to lose them.

This can be summed up by saying that the ionization energy is minimal for alkali metals that have a single electron outside a full layer. It usually increases in each row of the periodic table, with the maximum in the noble gases that have complete layers.

Taking into account the above in mind, the atoms in order of increasing first ionization energies will be: Rb, Mg, B, N, F

Learn more:

Answer:

The answer is "0.35".

Explanation:

please find the complete question in the attached file.

Mass of [tex]CH_3C0_2 H[/tex][tex]= 77 \ g \\\\[/tex]

Molar mass of [tex]CH_3C0_2 H[/tex] [tex]= 60.05 \ \frac{g}{mol} \\\\[/tex]

No of moles in [tex]n_{CH_3CO_2H}[/tex] [tex]= 77 \ g \times \frac{1 \ mol \ CH_3C0_2H}{60.05 \ g}[/tex]  

                                          [tex]= 1.28 \ mol \ CH_3CO_2H[/tex]

Mass of water [tex](H_2O)[/tex][tex]= 42 \ g[/tex]

The molar mass of water [tex](H_2O)[/tex][tex]= 18.02 \ \frac{g}{mol}[/tex]

moles of water [tex]n_{H_2O}[/tex]:

[tex]= 42 \ g \times \frac{1 mol H_2O}{18.02 \ g} \\\\= 2.33 \ mol \ H_2 O[/tex]

Molfraction of acetic acid:

[tex]X CH_2CO_2H = \frac{n_{CH_3CO_2H}}{n_CH_3CO_2H +n_{H_2}}\\\\[/tex]

                     [tex]=\frac{1.28 \ mol}{1.28 \ mo1 + 2.33 mol}\\\\ = 0.354\\\\= 0.35[/tex]

The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar. When it is large, the bond is polar covalent or ionic.

Answer:

It's B

Explanation:

I got it right on edjenuity

The most likely outcome of the retrofitting of a nuclear power plant is that it will be able to reprocess its used uranium fuel. Therefore, option C is correct.

A nuclear power plant is a facility that generates electricity by harnessing the heat produced by nuclear reactions. At the heart of a nuclear power plant is the reactor, where a controlled chain reaction of nuclear fission occurs.

Reprocessing is a process by which the used nuclear fuel is chemically treated to separate out and recover the unused uranium and plutonium, which can then be reused as fuel. This reduces the amount of radioactive waste produced by the plant and also extends the life of the uranium fuel.

The fission reactions to fusion reactions is not currently a viable option for power generation, and the idea that a retrofitting would eliminate radioactive wastes is unlikely, as nuclear power plants will always produce some amount of radioactive waste.

Thus, option C is correct.

To learn more about the nuclear power plant, follow the link:

https://brainly.com/question/4246037

#SPJ3

Answer: how do we answer when there are no options??

Explanation: