How are energy and mass connected during the formation of an atom?

Answers

Answer 1

Answer: Energy and mass are required during the formation of an atom. The binding of an atom is the attraction of the forces. So, the mass defects and energies of the protons and neutron are being released to form the nucleus.

Answer 2

Answer:

Answer:

Energy is absorbed, so the mass is reduced

Explanation:

The relationship between the mass and the energy is given by Einstein formula as : m is the mass of an atom c is the speed of light When an atom is formed, the energy gets absorbed. As a result mass will decrease as per Einstein's equation.

So, the correct option is (c) "Energy is absorbed, so the mass is reduced".

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What are liquid crude oil and petroleum made from? A. small marine organisms
B. small land-based organisms
C. compressed rock and sediment
D. decomposing inorganic matter

Answers

Answer: Small marine organisms.

Liquid crude oil and petroleum are made from small marine organisms.

It is a a small marine organisms

When dilute sulphuric acid is added to barium chloride solution then what happens in a balanced equation?

Answers

Answer:

H2SO4 + BaCl2 = BaSO4 + 2HCl

Explanation:

Writing just the chemical compounds:

H2SO4 + BaCl2 = BaSO4 + HCl

Note that there are 2 Cl ions on the reactant side, but only 1 on the product side. So lets add a coefficient of 2 to the HCl product:

H2SO4 + BaCl2 = BaSO4 + 2HCl

This had the consequence of adding another H ion to the product side, but we are in luck: The reactant side contributes 2 H ions from the sulfuric acid, H2SO4. I wish the rest of life was that easy.

The other elements also balance:

Reactant Product

H 2 2

S 1 1

O 4 4

Ba 1 1

Cl 2 2

The balanced equation is:

H2SO4 + BaCl2 = BaSO4 + 2HCl

Match the landform to its description.caldera
made of pieces of lava
volcanic soil
material fills in valleys
cinder cone
bowl-shaped depression
shield volcano
wide summit, gentle slope
lava plateau
rich in nutrients

Answers

Answer:

cinder cone: made of pieces of lava

shield volcano: wide summit, gentle slope

volcanic soil: rich in nutrients

caldera: bowl shaped depression

lava plateau: material fills in valleys

Explanation:

it’s right

Answer:

Caldera, Bowl-Shaped depression

Shield volcano, Wide summit, Gentle slope

Lava plateau, Material fills in valleys

Volcanic soil, Rich nutrients

Cinder Cone, Made of pieces of lava

Explanation:

Got it right on edge

Elements from which two families would most likely combine with each other to create salts?

Answers

Also could be an alkali metal (such as Na) and a halogen (such as Cl)

Metals and non metals

Which of the following would be the best name for MgCl2? magnesium chlorine magnesium chloride magnesium dichloride monomagnesium dichloride

Answers

Answer: magnesium chloride

Explanation: Magnesium chloride is an ionic compound which is formed by combination of $Mg^(2+)$ and $Cl^-$ ions.

The name of the ionic compound is written as follows:

The name of the metal is written first followed by the name of the non metal without any prefix but the name of the non metal ends with ide, ite, ate or ite.

Thus the name of $MgCl_2$ is magnesium chloride.

It would be magnesium chloride.

Chlorine is a wrong name for Cl.

Dichloride doesn't work, even though Cl2 is 2 chloride, but according to some laws of nomenclature, saying dichloride isn't necessary so we don't say it.

And monomagnesium isn't right for the same reason as above.

Which yields H+(aq) as the only positive ion in an aqueous solution?(1) CH3CHO (2) CH3CH2OH (3) CH3COOH (4) CH3OCH3

Answers

If H+ would have to dissociate from a substance and must be the only positive ion in the solution that substance must be an acid.
CH3CHO is an aldehyde called acetaldehyde.
CH3CH2OH is an alcohol called ethanol
CH3OCH3 is an ether called dimethyl ether.
and finally, the answer CH3COOH is a weak acid called acetic acid.

Answer:The correct answer is option (3).

Explanation:

Carboxylic acid gives $H^+$ ions in their aqueous solution.

$RCOOH\rightleftharpoons RCOO^-+H^+$

$CH_3COOH\rightleftharpoons CH_3COO^-+H^+$

Carbonate ion formed is stabilized due to resonance.

Whereas aldehyde in their aqueous solution do not give $H^+$ ions.

Alcohol in their aqueous solution do not give $H^+$ ions.

Ether in their aqueous solution do not give $H^+$ ions.

Other Questions

Consider two equal-volume flasks of gas at the same temperature and pressure. One gas, oxygen, has a molecular mass of 32. The other gas, nitrogen, has a molecular mass of 28. What is the ratio of the number of oxygen molecules to the number of nitrogen molecules in these flasks

Why does a frog have 2 lives

Which statement describes an alternate theory of acids and bases?(1) Acids and bases are both H+ acceptors.(2) Acids and bases are both H+ donors.(3) Acids are H+ acceptors, and bases are H+ donors.(4) Acids are H+ donors, and bases are H+ acceptors.

As the temperature of a chemical reaction in the gas phase is increased, the rate of the reaction increases because(1) fewer particle collisions occur(2) more effective particle collisions occur(3) the required activation energy increases(4) the concentration of the reactants increases