All categories

3 years ago

The amount of material left after two half-lives is one-half of the original amount. ____________________

Chemistry

2 answers:

Assoli18 [71]3 years ago

8 0

I think it is true because that seems like the right answer

choli [55]3 years ago

4 0

That statement is false. When an atom gains or loses electrons, the charged particle that results is called a molecule. The amount of material left after two half-lives is one-half of the original amount. Fission is the combining of two low-mass nuclei into one nucleus with a larger mass. I got that part from google for a more detailed response.

Hope this helps, if not, comment below please!!!

You might be interested in

You have at your disposal 3 1-pound bags of various pure salts that dissolve readily in water. You can add one of the bags to a

Sedaia [141]

Answer:

This question appears incomplete

Explanation:

However, it should be noted that addition of soluble salts generally lowers the freezing point of water hence after the addition, water will no longer freeze at 0°C but lower.

Soluble salts tend to form more ions in water, it is these ions that are responsible for interfering with the hydrogen bonds hence lowering the freezing. Thus, (since each bag are of the same weight) the bag that contains the salt that ionizes more in water will lower the freezing point by the greatest amount.

NOTE: Different weight of the salts could lead to more ions been formed in the water by some salts as against the other.

6 0

3 years ago

g Which statement concerning the structure of the atom is correct? Protons and neutrons have most of the mass and occupy most of

qaws [65]

Protons and neutrons have most of the mass but occupy very little of the volume of the atom.

7 0

3 years ago

Molecule A is a __________. Bonding of fatty acids and polar phosphate groups to glycerol. Molecule A is a __________. Bonding o

Elena L [17]

Answer:

The correct option is: c. phospholipid

Explanation:

Phospholipids, also known as glycerophospholipids, are the derivatives of fatty acids which is a major structural component of the cell membranes.

Phospholipid is the class of lipids that is composed of a glycerol molecule that forms ester bonds with the two long-chain fatty acids and one phosphate group.

Therefore, Molecule A is a phospholipid.

7 0

2 years ago

Which statement accurately describes how magnetic stripes in ocean rock provide evidence of seafloor spreading?

Naily [24]

Answer:

The third one makes the most sense

7 0

3 years ago

Sulfuric acid (H₂SO₄), is formed when sulfur dioxide (SO₂) reacts with oxygen and water. Using the balanced chemical reaction ab

Lynna [10]

Answer:

8.5 mol H₂SO₄

Explanation:

It seems the balanced reaction the problem is referring to is absent, however the description matches the following balanced reaction:

2SO₂ + O₂ + 2H₂O → 2H₂SO₄

Now we can convert 8.5 moles of SO₂ into moles of H₂SO₄, using the stoichiometric coefficients of the balanced reaction:

8.5 mol SO₂ * $\frac{2molH_2SO_4}{2molSO_2}$ = 8.5 mol H₂SO₄

5 0

3 years ago