Which substance can not be broken down by a chemical change?

Answers

Answer 1

Answer:

Among the given substances, the one that cannot be broken down by a chemical change is arsenic.

Explanation:

Rawr

Answer 2

Answer:

the substances that cannot be broken down by a chemical change is arsenic.


Related Questions

what is the molarity of an hcl solution if 50.0 ml is neutralized in a titration by 40.0 ml of 0.400 m naoh? group of answer choices 0.200 m 0.280 m 0.320 m 0.500 m

Answers

The molarity of an HCl solution if 50.0 ml is neutralized in a titration by 40.0 ml of 0.400M NaOH is 0.320 M.

HOW TO CALCULATE MOLARITY:

The Molarity of an acid when involved in a titration procedure can be calculated by using the formula below:

M1V1 = M2V2

Where;

M1 = molarity of acid (M)M2 = molarity of base (M)V1 = volume of acid (mL)V2 = volume of base (mL)

According to this question,

M1 = ?M2 = 0.400MV1 = 50 mLV2 = 40 mL

M1 × 50 = 0.400 × 40

50M1 = 16

M1 = 16 ÷ 50

M1 = 0.32M

Therefore, the molarity of an HCl solution if 50.0 ml is neutralized in a titration by 40.0 ml of 0.400M NaOH is 0.32 M.

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Why is oil found in Middle East but not in Hawaii

Answers

as a person who lived in the middle east, i can assume the middle east consumes more oil than Hawaii.

The lower the pressure, the lower a liquid’s boiling point is. Water actually boils much faster at the top of a mountain where air pressure is lower. Without pressure water in the body begins to boil. What do you think will happen to your body as blood, saliva, and other fluids boil?

Answers

Answer:

The lower the pressure, the lower a liquid's boiling point is. That's why water boils much faster at the top of a mountain than it does at the bottom. In space, there is no pressure. So the boiling point could easily drop to your body temperature.

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Franklin added a solid yellow dye tablet to each of these beakers one beaker (A) contained cold water, and the other beaker contained (B) hot water he took this picture after ten seconds to compare the results. What is the most likely investigating? Answer a. He is investigating the effect temperature has the movement of molecules.
b.he is investigating how food coloring tablets affect the temperature of water
c.he is investigating how to how to create new colors by mixing two or more or more other colors
d. he is investigation the effects of evaporation on water mixed with colored tablets

Answers

Answer:

a

Explanation:

a

During the work-up step, aqueous hydrochloric acid is added to the reaction and a gas is observed. what is the composition of the gas?

Answers

The gas likely composed of Hydrogen

Hydrogen is one of the most abundant elements that exist in the world and its natural state is a gaseous state. This means hydrogen can be in other states such as liquid or solid if bonded with other elements but it is not its natural state.

For example:

Ice is solid and it contains both hydrogen and oxygen

Hydrochloric acid is usually liquid and it contains Chlorine and Hydrogen

Because of this, during reactions Hydrogen has a tendency to break its bonds with other elements and return to its gaseous state. Based on this, it is likely the gas in this reaction is hydrogen.

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The organelle that serves as a microtubule organizing center during cell division is the

Answers

Answer:

Centríolo. Los Centríolos son orgánulos tubulares (en pares de dos en dos) que se encuentran en el citoplasma de las células animales, cerca de la membrana nuclear. Los centriolos tienen la función de organizar los microtúbulos, que son el sistema esquelético de la célula.

Explanation:

Espero te ayude

Chemical and physical properties of the seaborgium element

Answers

Answer:

Seaborgium is an artificially produced radioactive chemical element, it's appearance is unknown, it probably has a silvery white or metallic gray colour. The most stable isotope Sg 271 has an half life of 2.4 minutes.

A compound formed from a metal and a non-metal will have which type of bond?

A. Covalent

B. Hydrogen

C. Ionic

D. Atomic

Answers

it's an ionic bond

btw i love your profile picture never understand is one of my favorites

The answer is C
Ionic bond

Using the formula velocity = distance/time, how fast does sound travel in wood given a distance of 500 m and 0.26 seconds.

A- 1,923 m/s
B- 746 m/s
C- 2,941 m/s
D- 127 m/s

Answers

Answer:

A : 1,923 m/s

Explanation:

= 500/0.26

= 1,923

Light energy travels in waves, originates directly from the Sun, and is used by plan
to make food. Scientist use light energy to create lasers for cutting, heating,
measuring. Light energy is so important that it is responsible for the existence
most life forms. Furthermore, light energy is the only visible form of energy. It ca
travel through air, space, water, and glass. Light travels in a straight line until
strikes an object or travels from one medium to another. As it travels from or
medium to another it appears to bend.
Which term is best used to describe the bending of light waves?
A
refraction
B
reflection
C
rotation
D
revolution
La

Answers

Answer:

A) Refraction , this is the correct answer.

Hope it helps!!

Answer:

A refraction. I'm an electrician building aspects they put circular cones through the building and where they bend they have refractors and so you can have a completely closed off building and the light will come through from the rooftops through these tubes and the light been through refractors to make it look like you have a moonroof

IN 4Ca(OH)2 how many atoms of calcium.​

Answers

This substance contains 4 atoms. Ca = 1. O = 1. H = 2 because H2 means two atoms of the substance it comes after.

which group of the periodic table is composed of inert gases

Answers

Answer:

Group 0

Explanation:

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stay positive...

The group zero of the periodic table is composed of inert gases.They are very unreactive So, they don't form molecules easily and are found as single atoms.

Which group of metals is inert?

"Noble metals, such as gold, platinum, silver, and a few rare metals. Members of this class have little or no tendency to unite with oxygen in the free state and do not change composition when placed in water at a red heat.

Noble gas atoms already have complete outer shells and have no tendency to lose, gain, or share electrons. As a result, noble gases are inert and do not participate in chemical reactions.

Because their outermost shells are completely filled, zero group elements are inert. They have no tendency to lose, gain, or share electrons with other elements.

Thus, The group zero of the periodic table is composed of inert gases because they are unreactive.

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Why does hydrogen contain more energy than gasoline?

Answers

Answer:

In fact, a fuel cell coupled with an electric motor is two to three is more efficient than an internal combustion engine running on gasoline.

Explanation:

Because hydrogen has a low volumetric energy density, it is stored onbaord a vehicle as a compressed gas to achieve the driving range of conventional vehicles.

which scientist is credited with early, quantitative data on redox reactions?

Answers

Answer:

German chemist G.E. Stahl

Explanation:

this theory was first articulated in 1697

G. E. Stahl in 1697 is the scientist who is  credited with early, quantitative data on redox reactions.

What are redox reactions?

The Redox reactions comprise of two parts a reduced part and an oxidized part, which occur simultaneously . The part which is reduced gain electrons and hence there is a increase in oxidation state of the species.

While, the part which is oxidized looses electrons and hence there is a decrease in oxidation state of the species.During redox reactions, there is no net change in the number of electrons . Electrons which are given off in oxidation are used up in reduction.

The ion or molecule which accepts electrons is called as oxidizing agent while the ion or molecule which donates electrons is called as a reducing agent.

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Which element is most likely to lose electrons in a chemical reaction?
Group of answer choices

Mg

Cl

S

Br

Answers

Answer:

Write a hypothesis for Section 1 of the lab, which is about the effect the type of material has on the absorption of sunlight on Earth’s surface. Be sure to answer the lesson question: "What factors influence the absorption of sunlight at Earth's surface?"

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

more drought is not a global warming

Answer:

i think it is human migration

because when drought becomes more its one sign of global warming and when land becomes less there wont be place for people to plant trees

Can you guys please help me with this chart PLEASEEE?

Answers

I am still gathering the pictures but this should help with one of them

which will have a greater volume: 10 grams of liquid water or 10 grams of solid water?

Answers

The volume of 10 grams of frozen water is more than the volume of 10 grams of liquid water

Tổng số hạt e, p, n của nguyên tử M là 40, số hạt mang điện hơn số hạt không mang điện
là 12. Tổng số hạt e, p, n của ng.tử X là 24, số hạt mang điện hơn số hạt không mang điện là 8.
a, Tìm số hiệu, số khối của các nguyên tử M và X.
b, M sẽ mất hay thu thêm bao nhiêu electron, X sẽ mất hay thu thêm bao nhiêu electron để
đạt cấu hình bền vững ?

Answers

Answer:

huh I can't understand

Explanation:

what are your language bro

does the number of electrons reaching the detector increase or decrease as you change the frequency?

Answers

If you increase the frequency, the photon will have more energy and can therefore transfer more electrons to the other side. As such, you will have an increased current.

When the balancing of the equation for the reaction,
Mno(aq) +H_C20. (aq) +H* (aq) —— Mn* (aq) + CO2() +H200)
? 8
taking place in acidic media is properly completed, what is the sum of ALL the coefficients in the
equation?
a. 31
b. 33
c. 32
d. 30
e. 29

Answers

Answer:

hhhhh

Explanation:

jsjsjdjddfrtttrjsjjdhhdhfhhfhfhhrheidjhf

!! Help!! Which statement accurately describes malleability?​

Answers

Answer:

B

Explanation:

Malleability describes a substance's ability to deform under pressure and heat

Examples:  Gold, iron, aluminum, copper, silver, and lead. Gold and silver are highly malleable. When a piece of hot iron is hammered it takes the shape of a sheet.

As the volume of a gas at 101.3kPa changes from 30mL to 95mL the volume of the gas will?

1)Increases
2) Decreases
3 Remains the same

Answers

2 i think it 2 it makes more sense so yea

What syndrome did you researched

Answers

Need more information.

where do the electrons that are excited by the energy in sunlight first come from?

Answers

Answer:

Pigments in the light-harvesting complex pass light energy to two special chlorophyll a molecules in the reaction center. The light excites an electron from the chlorophyll a pair, which passes to the primary electron acceptor. The excited electron must then be replaced.

Explanation:

During photosynthesis,the electrons that are excited by the energy in sunlight first come from chlorophyll pigment present in the leaves.

What is photosynthesis?

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy  which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.

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What determines the energies of light that an element can absorb?

Answers

Answer:

Atom

Explanation:

An atom can absorb or emit one photon when an electron makes a transition from one stationary state, or energy level, to another. Conservation of energy determines the energy of the photon and thus the frequency of the emitted or absorbed light.

as you move across the periodic table atoms tend to get smaller because

Answers

Answer: because atoms have more protons

Explanation: just took the test

"A base is a substance that produce OH-ions." Which definition of a base is this?
A. Titration
B. Bronsted-Lowry
C. Arrhenius
D. Alkali ​

Answers

Answer:

C. Arrhenius

An Arrhenius base is a substance that dissociates in water to form hydroxide (OH–) ions. In other words, a base increases the concentration of OH– ions in an aqueous solution.

Explanation:

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Which type of fire can help prevent
larger fires in the future?

Answers

undertake technical checkups regularlyhave properly functioning spark arrestorsnever park near dry grass, especially, close to forestshave a shovel and a fire-extinguisher

hope it helps

what is pyruvic acid changed into in lactic acid fermentation

Answers

Answer:

pyruvic acid changes to alcohol and carbon dioxide.

Explanation:

In lactic acid fermentation, pyruvic acid from glycolysis changes to lactic acid. This type of fermentation is carried out by the bacteria in yogurt, and by your own muscle cells.

I HOPE THIS HELPS!!!!!

Alcohol and carbon dioxide are produced when pyruvic acid is fermented. The chemical process in which molecules break down is called as fermentation.

What is fermentation ?

Fermentation is an anaerobic chemical process that breaks down molecules like glucose. Pyruvic acid undergoes fermentation to produced lactic acid.

More specifically, fermentation is the foaming that happens during the creation of wine and beer, a procedure that has been around for at least 10,000 years.

Pyruvic acid produced during glycolysis transforms into lactic acid during lactic acid fermentation. Alcohol and carbon dioxide are produced when pyruvic acid is fermented.

Thus, the pyruvic acid when change into lactic acid fermentation obtained alcohol and carbon dioxide.

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