The top diagram represents a mixture of S atoms and O2 molecules in a closed container.

Which symbolic notation best represents the molecule in the bottom picture?
A) S2O6
B) SO3
C) 2 SO3
D) 2 S and 6 O

Answer:

Jurassic period

Hope this helps!

Answer:

A.   AlO

Explanation:

The empirical formula of a compound is the simplest possible formula giving the ratio of atoms in a molecule of the compound.

We know that Aluminium forms [tex]Al^{3+}[/tex] and oxygen forms [tex]O^{2+}[/tex].

As such the formation of the ionic compound between a metal and non-metal results into [tex]Al_2O_3[/tex].

The empirical formula is as follows:

 Element                       Aluminium           Oxygen

% composition

by mass                              26.98                    16.0

mole ratio                           26.98/26               16/16

                                    =  1.04                              = 1

divided by the

smallest number            1.04/1                             1/1

                                        1.04                             1

The empirical formula is AlO

Answer:

3.79 g

Explanation:

Answer:

33.4814814815

Explanation:

90.4/2.70

Answer:

Antoine Lavoisier

Explanation:

Antoine Lavoisier wrote the first modern textbook. It is the answer.

The modern chemical textbook was written by Antoine Lavoisier. The book is titled as Elementary Treaties On Chemistry.

Antoine Lavoisier is known as the father of modern chemistry. He contributed a lot to revolutionize chemistry. Antoine Lavoisier proposed the law of conservation of mass.

Nomenclature of chemical compounds was proposed by Antoine Lavoisier. He studied about the combustion and respiration in detail and the results are written in the book Elementary Treaties On Chemistry.

Hence, the first modern chemical textbook was written by Antoine Lavoisier.

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Answer:

1,000 years

Explanation:

1,000 years

According to the U.N. Intergovernmental Panel on Climate Change (IPCC), which issued a special report on CCS in 2005, a properly selected site should securely store at least 99 percent of the sequestered CO2 for more than 1,000 years.

Answer:

4219500 centimeters

Explanation:

I hope this helped!

Answer:

Air is less dense on a mountaintop than at sea level.

Air pressure is lower at low altitudes.

As you climb a mountain, air pressure increases.

More force pushes on the air at the bottom of an air column.

As you descend a mountain, air molecules are closer together.

Explanation:

The answer is option B :)

According to the concept of solubility, oil and water have a low solubility because they have separate chemical properties.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.

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Answer:

The ratio of an object's mass to its volume is called density of an object

Explanation:

Density=mass/volume

Answer:

A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

Explanation:

yea

Answer:

Neutrons have a neutral charge

Explanation:

A neutron consists of 3 quarks, 1 up and 2 down. The up quark has a charge of + 2/3e, and the down quarks each have a charge of - 1/3e. So, the charges on the 3 quarks tend to cancel out to produce a neutrally charged particle.

Answer:

go to google

Explanation:it all ways work

Answer:

an apple is best described as a heterogeneous mixture.

The phrase that best describes an apple is heterogenous mixture because it is made up of a different materials.

A mixture is combination of different components that can be uniform or dispersed and homogenous or heterogenous.  A homogenous mixture is the one in which the two or more components are dissolved together to form only one phase.

A heterogenous mixture is composed different phases with uniform or irregular arrangement of materials. Heterogenous mixtures look like a nonseparated random particles which are clearly distinguishable by eyes.

Apple is not a compound but is a mixture made up of different components such as water, pulp, seeds, pigments etc. and each forms their own phases.

Hence, Apple can be termed as a heterogenous mixture.

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Answer:

It has a mass of 4.326 grams.

Explanation:

Explanation:

Density of a substance may be defined as the amount of mass or matter it contains in a unit space or volume of that substance. It is the quantity of the matter that a body possess or contains.

Mathematically,

density = mass / volume

Different substance shave different densities. The arrangement of molecules or atom particles in the substances makes a substance less denser or more denser than the other substance.

In liquid or gas, the molecules are loosely bound to each other and there are more empty space or void spaces in the substance. Thus this make liquid and gas less dense.

On the other hand, the molecules in solid are tightly bound and they are packed, with no or very less empty space. Therefore, solids have the largest density than the gases which have the smallest density.

Answer:

The stage of human social and cultural development.

Explanation:

Answer:

The stage of human social and cultural development.

on:

Answer: A chemical change in step one and a physical change in step two. ( So A) on edu

Explanation:

Answer:

A. a chemical change in step 1 and a physical change in step 2

Explanation:

Correct on Edge 2022!!!

Good luck everyone, you got this! Have a great day!

Explanation:

H2O2: hydrogen peroxide.

hope it will help u ✌️

Answer:

Formal

Explanation:

Answer:

I think its formal because the question looks a bit fancy by using all the present perfect tense..

hope this helped you

please mark as the brainliest ( if its correct)(ㆁωㆁ)

Answer:Proton, the gold foil experiment indicated that the nucleus has a positive charge.

Answer:

n-heptane is your answer

Answer:

Hence, C5H12 is called pentane, C6H14 is called hexane, C7H16 is called heptane and so forth. Straight-chain alkanes are sometimes indicated by the prefix n- (for normal) to distinguish them from branched-chain alkanes having the same number of carbon atoms.

Explanation:

Answer:

B. A physical change can separate its mixed components.

Explanation:

Atoms and molecules of different elements can come together to form a substance known as MIXTURE. A mixture comprises of several units of different elements or compounds that are not chemically joined together. This is the case of hair gel, which is a mixture i.e. it contains several compounds mixed together in an uneven ratio.

Since the components of a mixture such as the hair gel, are not joined together chemically i.e no chemical bonding or altering of chemical structure occurs between the mixture constituents, they can be separated using physical means. Physical methods of separation such as boiling, chromatography, etc.

Answer:

it provides oxygen for the human to breathe

Explanation:

During photosynthesis plants absorbs carbon dioxide from the atmosphere and release oxygen into the air. Hence, it increases the level of oxygen for breath.

Photosynthesis is a biological process by which green plants produce energy and molecular oxygen in leaf by the aid of light energy. The photoactive pigments chlorophyll in green leaves absorbs light energy sufficient for this process.

The photosynthetic reaction involves combination of carbon dioxide and water to form glucose and oxygen as written below:

[tex]\rm 6H_{2}O + 6CO_{2} \rightarrow C_{6}H_{12}O_{6} + 6O_{2}[/tex].

Therefore, photosynthesis decrease the level of carbon dioxide and increase the level of oxygen in the air . Thus, plant biomass helps us to provide oxygen to breath.

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Answer:

An open flame. Hope this helped! :)