Get Brainiest If CorrectThe Moon Doesnt Actually Change ________, But It Appears To From Earth Because (2024)

Answer:

The answer is 0.81 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass of metal = 10.5 g

volume = 13 cm³

We have

[tex]density = \frac{10.5}{13} \\ = 0.8076923...[/tex]

We have the final answer as

0.81 g/cm³

Hope this helps you

Answer:

0.807

Explanation:

mass/volume = density

10.5/13 = 0.807

Answer:

it turns into a solid

Answer:

The leftover electrical energy is transferred into potential energy.

Explanation:

I'm pretty sure this is the right answer or The leftover electrical energy is transferred into chemical energy

Explanation:

Answer:

The left over energy turns into potential energy:))

Explanation:

Answer:

Sulfur trioxide

Sulfur trioxide | SO3 - PubChem.

Explanation:

Answer:

Radiation is the emission of electromagnetic waves from all matter that has a temperature greater than absolute zero. In other words the heat of the energy it radiates in infrared spectrum.

What is the primary difference between and hypothesis and a theory?

A hypothesis, on the other hand, is similar to a theorem, but it stands pretty much on its own and is not known to be linked to other theorems in any way. A hypothesis usually has no compelling reasons to be true or false. Hypotheses can be classified into the following categories:

The degrees of freedom of a theory have not yet been determined. These could be properties of a theory that haven't been fully determined yet. A theory can be expressed in a finite number of ways, and accepting one of them is referred to as "forming a hypothesis." It's about the aspects of a hypothesis that aren't fully formed yet.Once evidence is discovered, a hypothesis may evolve into a theory.A hypothesis that could become a theory if a mathematical formulation can be established.A hypothesis based on common sense and known theories that is not intended to become part of a bigger theory, but rather to explain a single fact. This could include things like beliefs regarding the formation of the earth.

A theory derives a large number of predictions from a limited number of theorems or assumptions, which fall into the following categories:

Things we already knew to be true and can be explained by other theories.Things we previously knew to be true, but which no other theory could explain or predict.Things that we didn't know were true but were later confirmed to be true.Things we didn't realize were true, and don't know if they are still true, but don't contradict current measurements.

Answer:

262.8577 g/mol

Explanation:

The molar mass and molecular weight of Mg3O8P2 is 262.858.

Answer:

The molar mass and molecular weight of Mg3O8P2 is 262.858.

Explanation:

Answer:

0.8910 mols of NaOH in a 35.65 g sample of NaOH

Explanation:

Mass off NaOH = 39.997

given = 35.65 g of NaOH

35.65 g of NaOH * 1 mol NaOH = 0.8910, since there are 4 sig figs.

/40.01 g

A 35.65 g sample of NaOH contains 0.8910 moles of NaOH.

What is mole?

The mole, denoted by the sign "mol," is the volume of a system that has the same number of atoms in 0.012 kilograms of carbon-12 as there are elementary particles.

The mole, often known as mol, is a SI unit used to measure how many particles are present in a given substance. A mole is made up of 6.02214179 atoms or other fundamental building blocks like molecules.

Mass off NaOH = 39.997

given = 35.65 g of NaOH

No of moles of NaOH =35.65 g of NaOH × 1 mol NaOH /40.01 g

No of moles of NaOH = 0.8910 moles.

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Answer:

+30

Explanation:

The nucleus holds both protons and neutrons. Since a neutron is neutral there is no charge. Protons are a positive charge. so the atoms nucleus is +30.

The charge on an atom's nucleus is the same as the number of protons in the nucleus. The charge on the nucleus of the atom is +30.

The nucleus houses positive particles called protons. Each proton carries a charge of +1.

The magnitude of charge of the nucleus is the same as the number of protons in the nucleus.

Since there are 30 protons, the magnitude of charge of the nucleus is expected to be + 30.

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Answer:

sp2

Explanation:

Orbital hybridization is defined as the changes in the orbitals of atoms when they pair with electrons of other atoms to form chemical bonds.

C atoms in C2Cl4 or tetrachloroethene have a total of three bond pairs, two with each chlorine atom and one with other carbon atom and zero lone pairs. Thus, C atoms in C2Cl4 is sp2 hybridized.

Hence, the correct answer is "sp2".

The hybridization of the C atoms in C2Cl4 is sp² hybridized.

The concept of hybridization deals with the merging of atomic orbitals to produce fresh hybridized orbitals, which impact molecule geometryand bonding characteristics.

In the given compound, C2Cl4 (tetrachloroethene)

There is a substitution of all the hydrogen atoms attached to the organic compound ethene with chlorine to produce tetrachloroethene. The two carbon atoms are doubly bonded to each other with two chlorine attached to each of the carbon atoms diagonally given rise to a bond angle of 120°. Thus, the resulting hybridization of the C atom is sp² hybridized.

Therefore, we can conclude that the hybridization of the C atoms in C2Cl4 is sp² hybridized.

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A:The top of the Ramp

Answer: if your quiz has these options to choose from - A: baking a cake B: grinding pepper C: lighting up a grill D: toasting bread, then it would be B: grinding pepper

Explanation: i took a quiz that had this question and i got it correct

Physical change of a substance include the phase change of the substance. Melting is an example of physical change where, a solid melts to form its liquid.

What is a physical change?

The change in state or phase of a substance is called physical change such as, melting, boiling, crystallization etc. Whereas, the change that involves bond making or bond breaking is called a chemical change.

Nuclear decay is an example of chemical change a heavy unstable atom breaks into two stable nuclei by emitting certain radiation. Forming or breaking of chemical bonds are chemical changes.

Melting of a substances is its change from solid to liquid state. At this temperature, the solid state and liquid state of a substance comes in equilibrium.

This process does not involve any bond making or breaking hence, it is a physical change. Therefore, D is correct.

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Your question is incomplete. But your complete question probably was:

which option is an example of a physical change??

A breaking chemical bonds

B forming chemical bonds

C nuclear decay

D melting a substance

Answer:

Ar

Explanation:

Valence electrons in an atom or element play important role in making an element reactive or unreactive. Valence electrons are the electrons present in the outermost shell of the atom that participates in a chemical reaction and forms a chemical bond with other atoms. Elements having no valence electrons are stable and acts unreactive.

Argon or Ar is the unreactive element from the given elements because there are no valence in argon and all the three electrons shells are full. Electronic configuration of Ar is [Ne]3s23p6 which shows the stability of argon.

Hence, the correct answer is "Ar".

Answer:

3.8857037037g per cm3

Explanation:

52.357g/13.5 cm3 = 3.8857037037

Round if needed

Answer:

Carbon monoxide is a colorless, odorless, and tasteless flammable gas that is slightly less dense than air.

Answer:

The answer is 10 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 300 g

volume = final volume of water - initial volume of water

volume = 40 - 10 = 30 mL

We have

[tex]density = \frac{300}{30} = \frac{30}{3} \\ [/tex]

We have the final answer as

10 g/mL

Hope this helps you

33 protons and 33 electrons

5 valence

Wants to be like krypton

Gain. 3

A minus 3 charge

Anion

Answer:

14,250 years old.

Explanation:

First, multiply the two lifetimes. - 11,400.

Then, divide 5,700 in half for the 0.5 lifetime. - 2,850.

Lastly, add them all up. - 11,400 + 2,850 = 14,250 years old.

sorry if incorrect <3

thats what i understood XD

Answer:

D

Explanation:

hi! a chemical change changes the composition of the material. in A, even though the glass is broken, it is still glass. for B, even though the wood is chopped, it is still wood. for C, even though the can is crushed, it is still a can. D is a chemical change because the milk's taste changes, meaning its chemical composition changed and a reaction occurred. it is no longer the original milk.

The event represents a chemical change is milk turning sour. Hence option D is correct.

What is chemical change?

Chemical change is defined as a transformation of one material into another, the formation of new materials with distinct properties, and the creation of one or more new substances. Chemical synthesis, or, alternatively, chemical breakdown into two or more separate molecules, occurs when one material reacts with another to create a new substance.

In the case of milk, it contains a sugar called lactose as well as lactobacillus, a type of bacteria that is completely safe and uses the lactose to produce energy and lactic acid. This is what gives milk its sour flavor. When the taste of the milk changes, a chemical reaction has taken place, changing its chemical makeup. It isn't the original milk anymore.

Thus, the event represents a chemical change is milk turning sour. Hence option D is correct.

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Answer:

there is no following so there isnt a answer

Explanation:

Answer: it would be B

Answer:

B) The north and south Poles

Explanation:

when dealing with magnets they have a negative and Positive charge on their south and north poles. Negative attacks with positive and positive with negative so both poles on each magnet should react to each other

Answer:

The Earth's core is mainly made of iron and nickel.

Explanation:

Answer: The Earth's core is mainly made of iron and nickel.

Explanation:

Answer:

D

Explanation:

Answer:

D

Explanation:

1000 mL = 1 L

so

1000 × 4.6 = 4600

Answer:

C

Explanation:

Have anice day

This electron cloud model of aluminum has 3 energy levels with 3 electrons on its outer energy level. Thus option C is correct.

What is electron cloud?

Electron cloud model is a type of model of an atom in which the atom consist of nucleus surrounded by a group of electrons. According to this model, the position of the electron at any given time is not known.

This model explains the zone of probability which describe the location of electron due to uncertainty principle. This model is described by Albert Einstein, Max Planck and Niels Bohr that electrons transmit energy and its properties that linked to light and energy.

The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. The total electrical charge of the nucleus is +Ze, where e is the elementary charge equals to 1,602 x 10-19coulombs.

Every electron is influenced by the electric fields produced by the positive nuclear charge and have (Z – 1) negative electrons in the atom.

Thus option C is correct.

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Answer:

One word for this is, raconteur - it means a person skilled in telling anecdotes. anecdotist. narrator, or storyteller

Explanation:

Answer:

1 3 6 ones

Explanation:

Answer

Solution Compound Colloid

Explanation:

Answer:

The molecular formula of a compound may be the empirical formula, or it may be a multiple of the empirical formula. For example, the molecular formula of butene, C4H8, shows that each freely existing molecule of butene contains four atoms of carbon and eight atoms of hydrogen. Its empirical formula is CH2.

Explanation: