Chemistry High School

what’s the independent and dependent variable?

Answers

Answer 1

Answer:

independent variable: a variable (often denoted by x ) whose variation does not depend on that of another.

dependent variable: a variable (often denoted by y ) whose value depends on that of another.

Explanation:

Related Questions

Help with science pleaseee

Answers

It uses thermal energy

Answer:

thermal energy

Explanation:

the sun used thermal energy to melt the icecream

The molecular mass of CO2 is 44.01 u. What is the mass of 2.0 mol of CO2?

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Answer:

The mass of 2.0 mol of C02 is 44 grams

Explanation:

The weight of CO2 is 44 grams per mole (1 x 12 grams/mole for the carbon and 2 x 16 grams/mole for the oxygen atoms)

According to the mole concept, the mass of 2.0 mole of carbon dioxide is 88.02 u.

What is a mole?

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons.Molar mass has units of gram per mole . In case of molecules, where molar mass in grams present in one mole of atoms is its atomic mass.

Mass can be calculated by the number of moles formula as,

mass=number of moles×molar mass

=2×44.01=88.02 u.

Thus, the mass of 2.0 mole of carbon dioxide is 88.02 u.

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hii if you could help that would be great, if the answer is correct ill mark as brainliest :)))

Answers

Answer:

Reactants, Products is the answer i believe

Answer:

reactants, products

Explanation:

A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

in the modern periodic table elements are raised according to increasing

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Answer:

in the modern periodic table elements are raised according to increasing atomic number

based on your observation, you can infer that thermal energy transfers to/from objects with higher temperatures to/from objects with lower temperatures

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Answer:

1. from 2. to

Explanation:

HELP ASAP
The diagram below shows some subatomic particles.
What is the particle that is labeled with a question mark (?) in the diagram?

Answers

Answer:

The Answer Is Quarks

Explanation:

Its mad up of Quarks

i hope this helps

pls make me brilliant or something

The particle that is labeled with a question mark (?) in the diagram is Quarks

Quarks are elementary particles and fundamental constituents of matter. They are considered the smallest known particles that make up protons and neutrons, which are the building blocks of atomic nuclei. Quarks are classified as fermions, which means they follow the rules of quantum mechanics and obey the Pauli exclusion principle.

There are six known types, or flavors, of quarks: up (u), down (d), charm (c), strange (s), top (t), and bottom (b). Each quark flavor has a unique set of properties, including mass, electric charge, and the way they interact with other particles through the strong nuclear force. The up and down quarks are the lightest and most common, while the top quark is the heaviest.

One notable property of quarks is that they possess a fractional electric charge. The up quark has a charge of +2/3 (e/3), while the down quark has a charge of -1/3 (-e/3), where "e" represents the elementary charge carried by an electron. Quarks are never found in isolation due to the confinement principle, which means they are always bound together in composite particles called hadrons.

Quarks interact through the strong nuclear force, which is mediated by particles called gluons. This force binds quarks together to form protons and neutrons, and also governs the interactions within atomic nuclei.

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does changing the size of a substance affect its density

Answers

Answer:

yes

Explanation:

Help
I don't understand
I think that is A and D ?

Answers

D for sure is the answer

PLEASE HELP ASAP!!!
What is the mass of the element above?
-1
-2
-3
-4
-5

Answers

Answer:

its 1 not negative

the atom shown below was hydrogen, known as H.

Help me please !!!
Which of the following can be inferred from the diagram above that shows the dependence of potential Energy on the Internuclear distance between two atoms?

A)The atoms form a bond with a bond length of 25 pm
B)The atoms form a bond with a bond length of 75 pm
с)The net force between the atoms is attractive at 25 pm
D)The net force between the atoms is attractive at 75 pm

Answer : The correct formula of manganese(II) chloride and manganese(II) oxide is [tex]MnCl_2[/tex] and [tex]MnO[/tex] respectively.

Explanation :

As we know that the chemical formula is formed by the criss-cross method.

In criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions.

For formation of manganese(II) chloride, manganese will form having an oxidation state of +2 called as cation and anion is chloride with oxidation state of -1.Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral .

For formation of manganese(II) oxide, manganese will form having an oxidation state of +2 called as cation and anion is oxide with oxidation state of -2.Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral .

Hence, the correct formula of manganese(II) chloride and manganese(II) oxide is [tex]MnCl_2[/tex] and [tex]MnO[/tex] respectively.

[tex]MnCl_{2}[/tex] ---> Manganese(II) chloride[tex]MnO_{2}[/tex] ----> Manganese(IV) oxide

The oxidation number of oxygen is -2, and that of chlorine is -1

The top guy is wrong↑

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In order to survive, plants absorb sunlight, water, and nutrients from the soil. What property is this?

Answers

Plants are unique organisms that can absorb nutrients and water through their root system, as well as carbon dioxide from the atmosphere. Soil quality and climate are the major determinants of plant distribution and growth.

Which is a better substitute for water, Li2O or H2S?

Answers

Answer:

h2s

Explanation:

The closest chemical analogue for water is hydrogen sulphide or H₂S. Because, both oxygen and sulfur are same group elements and shows similar properties.

What is H₂S?

Hydrogen sulphide or H₂S is a covalent compound formed by the combination of two hydrogens and one sulphur atoms. In this compound, each hydrogen shares one electron to sulfur and sulfur shares its two valence electrons to each hydrogen.

Water is H₂O, which is formed by the strong hydrogen bonding between hydrogen and oxygen and it exists as liquid mostly. Most of the compounds can be dissolved in water.

Lithium oxide Li₂O is a covalent compound with partial ionic character and it does not exhibit any similarity with water in any case.

Bothe sulfur and oxygen are in 16th group. They are gases with high electronegativity. Hence, both H₂O, H₂S are polar compounds. Both sulfur and oxygen have affinity towards hydrogen. Both have similar shape and bond angle.

Moreover, H₂S can dissolve some minerals and acts as a good solvent like water.

Hence, the better substitute for water is H₂S.

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Which property is a chemical property of a substance?

color

melting point

reactivity

boiling point

Answers

Answer:

Reactivity! :)

Explanation:

I just took the test! "2.13 Physical and Chemical Changes"

Reactivity is the chemical property of the substance. Therefore, option (C) is correct.

What are the chemical properties?

A chemical property can be described as the property that causes a change in the chemical structure of the substance. A chemical property of a substance can be seen in chemical change or reaction in the substance.

A chemical property represents the ability of a substance to combine with other substances or convert into a different product. The chemical composition is the identity of the substance and on changing it the substance turns into a different substance.

A chemical property gets determined when a change occurs in the chemical identity of the substance. The chemical properties such as toxicity, reactivity, enthalpy of formation, the heat of combustion, oxidation states, radioactivity, etc.

The color, melting point, and boiling point are the physical properties of a substance while reactivity is the chemical property.

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Which rule or principle does this violate?
A. Aufbau Principle
B. Pauli Exclusion Principle
C. Hunds rule

Answers

Answer:

Hunds rule is violated here.

Hunds rule : pairing of electrons takes place only if all the orbitals are filled with single electrons each.

Which of the following is not a genetic trait?
Dimples
Hair length
Height
Hair Color

Answers

Hair Color is the right answer

Answer:

I honestly think is hair length

Question 1
Put these elements in order of the INCREASING the atomic radius.
Li, O, C, F

A)O, C, F, Li

B) Li, C, OF

C) F, O, C, Li

D) C, F, Li, o

Answers

Explanation:

we know that,

From Left to right (Period) atomic radius decreases

and

From Top to bottom (Group) atomic radius increases.

Li, C, O, F belongs to same period.

So,

Atomic radius decreases if we go left to right

Increasing order of Atomic radius -

Li > C > O > F

Therefore,

Option C is correct ✔.

Answer: C

Explanation:

A student is examining an object in science class. It is pale yellow,brittle solid, with no shine. The sample is most likely a—

Answers

Answer: non metal

Explanation:

Nonmetals are dull, possess high ionization energies and electronegatives and are typically poor electricity conductors as they're insulators.

Non metals are also brittle and possess low melting point. Therefore, with the explanation, the sample is most likely a non metal.

what does science explain? (4 points)

A) moral values
B) biased opinion
C) meaning of life
D) natural phenomena

Answers

Answer:

Explanation:

Kwkekkfkekwknmxmdlwlmcfmkee

It’s D hope it helped :)

Answer:

neutrons in c,o,b,h

Explanation:

i think so

Answer:

6860

Explanation:

Which sentence describes a characteristic of matter

Answers

Answer: Matter takes up space and has mass

Explanation:

Literally the definition of mass

it can be formed by atoms sharing electrons or by negative and positive
ions joining).. is it mixture or compound ?

Answers

Answer:

VVV

Explanation:

Covalent bonds are formed when atoms share electrons and ionic bonds are formed when positive and negative ions bond to form an ionic compound.

the term “ The Universe “refers to ?

Answers

Answer:

everything including the space...

hope it helps...

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