1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastasy [175]
3 years ago
12

The table below compares the radioactive decay rates of two materials. Material Original mass of material (in grams) Mass of mat

erial after 60 hours (in grams) 1 208 13 2 200 50 Based on the table, which of these conclusions is most likely correct? (2 points) The half-life of Material 1 and Material 2 are equal. The half-life of Material 2 is double the half-life of Material 1. The half-life of Material 2 is 30 hours more than the half-life of Material 1. The half-life of Material 1 is 30 hours more than the half-life of Material 2.
Chemistry
1 answer:
Dmitry [639]3 years ago
8 0

Answer:

The half-life of Material 1 and Material 2 are equal.

step by step explanation;

Material 1 disintegrates to half its mass three times in 21.6 s, to go from 100g

to 12.5g. That is,

100g - 50g - 25g - 12.5g

Material 2 disintegrates to half its mass three times in 21.6 s, to go from 200g to 25g. That is,

200g - 50g - 25g - 12.5g.

This means that regardless of their initial masses involved, material 1 and material 2 have equal half-life.

Their half-life is 21.6 ÷ 3 = 7.2 sec

You might be interested in
Which statement below describes the behavior of a Molecules when a substance changes from a gas to liquid
krek1111 [17]

Answer:

As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.

Explanation:

hopfully this helps!

7 0
3 years ago
5Br−+BrO3−+6H+→3Br2+3H2O
sashaice [31]

Explanation :

The balanced chemical reaction is,

5Br^-+BrO_3^-+6H^+\rightarrow 3Br_2+3H_2O

The expression for the rates of consumption of the reactants are:

The rate of consumption of Br^- = -\frac{1}{5}\frac{d[Br^-]}{dt}

The rate of consumption of BrO_3^- = -\frac{d[BrO_3^-]}{dt}

The rate of consumption of H^+ = \frac{1}{6}\frac{d[H^+]}{dt}

The expression for the rates of formation of the products are:

The rate of consumption of Br_2 = +\frac{1}{3}\frac{d[Br_2]}{dt}

The rate of consumption of H_2O = +\frac{1}{3}\frac{d[H_2O]}{dt}

5 0
3 years ago
Which pairing accurately matches a biomolecules polymer with its monomer subunit
BartSMP [9]
The pairing that accurately matches a bio molecule polymer with its monomer subunit would be B. Protein and amino acids.
6 0
3 years ago
Read 2 more answers
Deep fried slugs anyone?
Andre45 [30]

Answer:

thnks for points buddy

Explanation:

5 0
3 years ago
Read 2 more answers
How are hypotheses different from theories?
juin [17]

Answer:

Explanation:

This is the Difference Between a Hypothesis and a Theory. In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.

4 0
3 years ago
Other questions:
  • _NH3 + _ 02 →_NO + _ H2O<br> Balanced
    12·1 answer
  • Consider two samples of carbon. One is a sample of one mole of carbon atoms obtained from the environment (i.e. isotopes are pre
    6·1 answer
  • How many equivalents of pyruvate are needed to generate 1 equivalent of glucose?
    10·1 answer
  • A lack of diversity in a population could possibly cause (2 points)
    9·2 answers
  • Find the simple interest on a $22,000 principal, deposited for 4 years at a rate of 4.25%
    5·1 answer
  • Construct the inequality for the following cases.
    7·1 answer
  • PLEASE ANSWER ALL I WILL GIVE BRAINLIEST PLEASE!!
    10·1 answer
  • How many atoms of Nitrogen in 4.3 moles?
    14·1 answer
  • carbon tetrachloride has been widely used in the cleaning industry in fire extinguishers and refrigerated. construct an explanat
    15·1 answer
  • Control rods in a nuclear reactor...
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!