Is a White Dwarf a star? yes or no

Answers

Answer 1

Answer:

Answer: Yes.

Explanation:

A white dwarf is the last "stage" for low- and medium-mass stars, it is what stars become after they have exhausted their fuel. They are verydense stars as they are the remaining core of stars. They're typically the size of a regular planet. White dwarves are not the type of stars we usually think of, but they are still stars.

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1) 0.143 g Mg into atoms2) 0.101 kg Ti into atoms
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Identify the bond types between the carbon and the two oxygen Atoms in the carbon dioxide molecule.
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All the examples stated belos is an example of electric forces except _________. A)a neutron pushing on another neutron B)an electron pushing on a proton B)an electron pushing on another electron

Answers

Among all the choices letter A is not an example of electric forces which is a neutron pushing on another neutron. Neutron do not have charge and a mass slightly larger than the proton. I hope my answer helps you.

All of the following are examples of electric force except A. A Neuton pushing on another Neutron. Neutrons are subatomic particles that possess no electrical charge.

A carbon molecule that has a different arrangement of atoms is known as a/ana. isomer.
b. nucleotide.
c. peptide.
d. monomer.

Answers

The correct response I believe is A. Isomer. If a carbon molecule possess more than one arrangement of how its atoms can be arranged, those other arrangements are known as isomers.

Which barium salt is insoluble in water?A) BaCO3. B) BaCl2
C) Ba(ClO4)2. D) Ba(NO3)2

Answers

$\boxed{{\text{A) BaC}}{{\text{O}}_{\text{3}}}}$ is insoluble in water.

Further Explanation:

Solubility rules

These help in predicting whether the given compound is soluble or insoluble in nature. Some of the solubility rules are as follows:

1. Group 1A compounds are soluble in nature.

2. All the common compounds of ammonium ion and all acetates, chlorides, nitrates, bromides, iodides, and perchlorates are soluble in nature. But the ions whose chlorides, bromides, and iodides are not soluble are ${\text{A}}{{\text{g}}^ + }$ , ${\text{P}}{{\text{b}}^(2 + )}$ , ${\text{C}}{{\text{u}}^ + }$ and ${\text{Hg}}_2^(2 + )$ .

3. All common fluorides, except for ${\text{Pb}}{{\text{F}}_{\text{2}}}$ and group 2A fluorides are soluble. Also, all sulfates except ${\text{CaS}}{{\text{O}}_{\text{4}}}$ , ${\text{SrS}}{{\text{O}}_{\text{4}}}$ , ${\text{BaS}}{{\text{O}}_{\text{4}}}$ , ${\text{A}}{{\text{g}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}$ and ${\text{PbS}}{{\text{O}}_{\text{4}}}$ are soluble.

4. All common metal hydroxides except ${\text{Ca}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ , ${\text{Sr}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ , ${\text{Ba}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ and hydroxides of group 1A and that of transition metals are insoluble in nature.

5. All carbonates are insoluble in nature, except for sodium, potassium and ammonium.

6. Salts having ions like $\text{Cl}^-$ , $\text{Br}^-$ or $\text{I}^-$ are generally soluble except those of $\text{Ag}^+$ , $\text{Pb}^(2+)$ and ${\left( {{\text{H}}{{\text{g}}_2}} \right)^{{\text{2 + }}}}$ .

7. Group 1A and group 2A perchlorates are soluble in nature.

8. All sulfates of metals are soluble, except for lead, mercury (I), barium, and calcium sulfates.

9. The salts having nitrate ions are soluble in nature.

According to the solubility rules, only carbonates of sodium, potassium and ammonium are soluble in nature. So barium carbonate $\left( {{\text{BaC}}{{\text{O}}_{\text{3}}}} \right)$ is insoluble in nature. But chlorides, nitrates and perchlorates of barium are soluble in water. Therefore option A is the correct answer.

Learn more:

Identify the precipitate in the reaction: brainly.com/question/8896163
What type of reaction occurs by mixing barium sulfide and sulfuric acid? brainly.com/question/5464325

Answer details:

Grade: Senior School

Chapter: Chemical reaction and equation

Subject: Chemistry

Keywords: barium, water, insoluble, solubility rules, soluble, insoluble, water, BaCO3.

BaCO₃ is generally considered insoluble in water. Carbonates are often insoluble, except for some alkali metals and ammonium carbonates. Therefore, option A is correct.

The solubility of salt depends on its nature and the interactions between its ions and water molecules. In this case, determine the solubility of each salt by considering the common solubility rules.

BaCl₂ is soluble in water. Chlorides (Cl-) are mostly soluble except for a few exceptions, such as silver chloride, lead chloride, and mercury(I) chloride.

Ba(ClO₄)₂ is soluble in water. Perchlorates (ClO4-) are typically soluble.

Ba(NO₃)₂ is soluble in water. Nitrates (NO3-) are mostly soluble.

Based on the solubility rules, the salt that is insoluble in water is BaCO₃ (barium carbonate).

To learn more about the solubility, follow the link:

brainly.com/question/28170449

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What is your zodiac sign? i’m a sagittarius

Answers

Answer: ima gemini :3

Explanation:

Answer:

OMG same im Dec 18

Explanation:

Which scientist provided a foundation for John Dalton’s work on the atomic structure?

Answers

The scientist that provided a foundation for John Dalton’s work on the atomic structure is Sir Joseph John Thompson or J.J. Thompson. It was theorized after the discovery that electrons are present in the atom. In this model, the atom is composed mainly of electrons. It was describe as plum pudding because the electrons are dispersed within the atom.

Water that has condensed and formed water droplets on the ground, grass, and other outdoor objects is known as _____.a. fog
b. dew
c. groundwater
d. surface runoff

Answers

The correct answer is B. Water that has condensed and formed water droplets on the ground, grass, and other outdoor objects is known as dew. It is water formed due to condensation in early morning or evening. It is formed when the temperature of the objects reach below the dew point of the air around.

Answer:

The answer is B. Dew Hopefully this helps!

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