Elements and compounds at the beginning of a reaction are ____.

Answers

Answer 1

They are called the Reactants

Answer 2

A reactant? If i understood correctly.


Related Questions

How do gas laws predict absolute zero?

Answers

Answer:

If a gas contracts by 1/273 of its volume for each degree of cooling, it should contract to zero volume at a temperature of –273°C; this is the lowest possible temperature in the universe, known as absolute zero.It appeared that an “ideal gas” at constant pressure would reach zero volume at what is now called the absolute zero of temperature. Any real gas actually condenses to a liquid or a solid at some temperature higher than absolute zero. Therefore, the ideal gas law is only an approximation to real gas behaviour.

why is water able to easily dissolve ionic compounds?

Answers

Answer:

To dissolve an ionic compound

Explanation:

the water molecules must be able to stabilize the ions that result from breaking the ionic bond. They do this by hydrating the ions. Water is a polar molecule. ... When you place an ionic substance in water, the water molecules attract the positive and negative ions from the crystal.

La serie de Lyman se situa en la region ultravioleta del espectro. ¿Que linea quedara mas cerca de la zona visible del espectro? Explica por qué.

Answers

Answer:

Lyman series of hydrogen atom lies in the ultraviolet region, Balmer series lies in visible region, Paschen series lies in near infrared region whereas Bracket, Pfund as well as Humphrey series lie in far infrared region of electromagnetic spectrum.

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Which change of state is taking place?
lose together but can slide
ms lose energy, they move
ocked in place because of
em.
gas to solid
gas to liquid
liquid to solid
solid to liquid

Answers

Answer:

gas to liquid is condensation

liquid to solid is freezing

solid to liquid is melting

gas to solid is deposition

Which common substance is an acid?
Question 3 options:

water

bleach

vinegar

baking soda

Answers

Explanation:

vinegar or acetic acid is an acid

Which electrons are represented by the dots in an electron dot structure?
a. valence electrons
b. inner level electrons
c. only s electrons
d. both a and c

Answers

Answer:

A

Explanation:

because valence electron is the outer shell of electrons.

hope this helps you to understand :)


The fastest man can run 100 meters in 10 seconds. What is his speed in miles per hour?

Answers

Answer:22.37 mph

Explanation:

100 meters = 0.062137 miles

Assume constant speed over the distance.

0.062137 miles in 10 sec

0.372822 miles in 60 sec = 1 minute

22.36932 miles in 60 minutes

22.37 mph rounded to 2 decimals

22.37 , or 36 kilometers an hour


Explain why rubidium is less reactive than caesium.

Answers

Answer:

Like other alkali metals, rubidium metal reacts violently with water. As with potassium (which is slightly less reactive) and caesium (which is slightly more reactive), this reaction is usually vigorous enough to ignite the hydrogen gas it produces.  

Explanation:

I DESPARATELY NEED HELP PLSSSS

Answers

Answer:

gidgjfxdgjxhfkzyjyfxgjfxj

Explanation:

A woman is swimming across a cold lake. Her body temperature is 98 degrees and the lake water is 60 degrees. Which has more thermal energy, the woman or the lake? Explain your answer!

Answers

I think the lake because of how heat is transferred or something. Just check out the first law of thermodynamics.

Answer:

the woman

Explanation:

Which is greater: the number of atoms in one mole of calcium, or the number of molecules in one mole of carbon dioxide (CO2)?

Answers

The number of atoms in one mole of Calcium and one mole of Carbon Dioxide is the same.

How to know the number of atoms?

The number of atoms is determined by Avogadro's number (a constant number that determines the atoms per mole).

Avogadro's number is equivalent to 6.02 x 10²³ atoms.

This means one mole of each element contains 6.02 x 10²³. However, this number of atoms changes according to the amount of the substances or moles.

How many atoms does 1 mole of Calcium and 1 mole of Carbon Dioxide contain?

Considering these are two different substances but the number of moles is the same (1 mole each) the number of atoms is equal to Avogadro's number or 6.02 x 10²³ atom.

Learn more about atoms in: https://brainly.com/question/13981855?referrer=searchResults

What happens when the light enters the water and then when it leaves the water?

Answers

Answer:

As light initially enters the water, it is refracted as in figure (b) and then reflected off the mirror (at the bottom of the glass). Upon exiting the water, the light is bent away from the normal as it passes from water (more dense) and into air (less dense).

why all carbon containing atoms are not organic?​

Answers

Answer:

Carbon oxides and carbonates are exceptions; they contain carbon but are considered inorganic because they do not contain hydrogen. The atoms of an organic molecule are typically organized around chains of carbon atoms. Inorganic compounds make up 1%–1.5% of a living cell's mass.

Answer:

They are made up of only one type of element, which is carbon, and therefore would fail to be categorized as an organic compound since they are not, in the first place,a compound, but a pure element.

If it takes 40 joules to heat a piece of barium weighing 20g from 10.0°C to 17.0°C, what is the specific heat of the barium?

Answers

Answer:

The specific heat of Barium is 0.204 J/g K

Why
would scientists synthesize natural resources

Answers

Answer:

so that the can keep reusing it and reusing it instead of wasting materials

Explanation:

you very welcome have a good day

a. Calcular el porcentaje en masa de una disolución que
contiene 20 g de azúcar en 280 g de agua:

Answers

Answer:

C po answer ko

Explanation:

thznk chou

Which color of light has the highest energy?

green


red


blue


violet

Answers

Answer:

Violet

Explanation:

It has the shortest wavelength and therefore the highest frequency.

What is the primary source of light energy?

Question 2 options:

lightening


moon


electricity


the sun

Answers

Answer:

moon the sun

.............hope it helps.......

Discussion: Bacteria vs. Virus
Instructions: Watch the video below.

In complete sentences:

-Tell me three facts you learned about viruses

-Based on the information we learned about cells, tell me two different ways that viruses are different from bacteria.

(Your response should be five sentences total.)

Answers

Viruses always have a host to latch on. When latched on, viruses will inject its protein or RNA into the host.
Viruses aren’t considered organic.
Bacteria has a nucleus and cell membranes while viruses don’t
Viruses are not considered organic while bacteria are.

why is propene the second member of the alkene homologous series?
why is it not ethene? ​

Answers

Answer:

Because alkenes are hydrocarbons with at least one carbon-carbon double bond the alkene homologous series starts at ethene C2H4.

Explanation:

is the freezing of mercury reversible or irreversible

Answers

Answer:

reversible

Explanation:

The freezing of mercury is reversible because solid mercury can be melted.

What is the balanced chemical equation for the combustion of sulphur

Answers

Answer:

S+O2⇒SO2

Explanation:

Answer:

The balanced equation is S + O2 → SO2

about chemistry notes​

Answers

Answer:

what about chemistry notes​?

Explanation:

in order for a substance to be an effective mobile phase in a chromatography experiment, it must be able to move

Answers

In order for a substance to be an effective mobile phase in a chromatography experiment, it must be able to move different components of a mixture at different rates.

Chromatography involves the separation of substances using the application of the solubility differences in them. It has two phases known as the stationary and mobile phases.

The mobile phase involves motion which is why the ability of substances to move at different rates is a great factor in this type of phase. The Stationary phase on the other hand doesn't involve movement of substances.

Read more on https://brainly.com/question/25194414

what is the younger rock layer​

Answers

The youngest rock layers are at the top and the oldest are at the bottom, which is described by the law of superposition.

Sodium belongs to Group I and Period 3 of the Periodic Table and iodine belongs to Group VII and Period 5. Based on this information, what can you tell about the atoms of sodium and iodine?

Answers

Explanation:

Sodium is a highly reactive metal since it has 1 valence electron, while Iodine is a less reactive non metal with 7 valence electrons.

Two reactants, each having a mass of 50.0 g, react fully in a beaker. What is the total mass of the products in the reaction?

Answers

Answer:

100g......sieiekeskslapaokdkz

Please help me.... someone deleted my question before so I'm trying again.

Answers

Answer:

See Explanation.

Explanation:

Element Name: Neon (check a periodic table)

Atomic Number: 10 (number of protons)

Atomic Mass: 20 (number of protons + number of neutrons [electrons have negligible mass])

Protons: 10 (P in the black circle)

Electrons: 10 (number of red dots)

Neutrons: 10 (N in the black circle)

Valence Electrons: 8 (number of red dots on the outermost ring)

If you have any questions, let me know!!

who originally proposed the concept that matter is composed of tiny indivisible particles

Answers

Answer:

Aristotal

His view of atoms was very different from how we think of atoms now but he was technically the first person to propose the basic idea of atoms.

¿cuáles son las ventajas de un experimento científico?​

Answers

Answer:

Explanation:

Hacer proyectos de ciencia ayuda a desarrollar el ingenio de un niño

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