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
lawyer [7]
3 years ago
5

Using the table above, calculate the atomic mass of the unknown element.

Chemistry
1 answer:
sleet_krkn [62]3 years ago
6 0
Hehehehejdjdjdjjdjdjjdjdjdjjfjdjr
You might be interested in
Recall that you're hypothesis is that these values are the fractions of atoms that are still radioactive after n half life cycle
Sergeu [11.5K]

A= 0.5, B = 0.25 , C = 0.125, D = 0.015625 and E = 0.00390625

<h3>What is a hypothesis?</h3>

A research hypothesis is a statement of expectation or prediction that will be tested by research. Before formulating your research hypothesis, read about the topic of interest to you.

Half life of a substance is defined as the amount of time taken by the substance to reduce to half of its original amount.

Here n represents the number of half lives.

The amount of substance that remains after n half lives can be calculated using the given formula,

So when we have n =1,

Fraction of substance that remains = 0.5¹ = 0.5.

That means after first half life over, the amount of substance that remains is 0.5 times that of original.

Therefore we have A = 0.5

When n = 2, we have 0.5² = 0.25

So when 2 half lives are over, the amount of substance that remains is 0.25 times that of original

Therefore B = 0.25

When n = 3, we have 0.5³ = 0.125

So when 3 half lives are over, the amount of substance that remains is 0.125 times that of original.

Therefore we have C = 0.125

When n = 6 , we have 0.5⁶ = 0.015625

So D = 0.015625

When n = 8, we have 0.5⁸ = 0.00390625

Therefore E = 0.00390625

The values for A, B, C, D and E are 0.5, 0.25, 0.125, 0.015625 and 0.00390625 respectively.

Learn more about the hypothesis here:

brainly.com/question/17173491

#SPJ1

4 0
2 years ago
What mass of water absorbs 6700 J of heat to raise the temperature from 283K to 318K?​
larisa86 [58]

Answer:

you did not give the specific heat like formula like it takes 1kj to raise 28grams of water by 10 grams

4 0
3 years ago
How many moles of carbon are in 3.5 moles of calcium carbonate? ______?
DerKrebs [107]
<span>3.5 moles CaCO3 (1 mole carbon/1 mole CaCO3) = 3.5 moles</span>
8 0
3 years ago
Read 2 more answers
The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic rat
Fudgin [204]
Answer :

2 red : 2 white

Explanation:

;)long story short

hetro with hetro gives 3:1
hetro with recessive gives 1:1

Hetro :- ( Rr) one capital letter and one small
Recessive :- (rr) two small leters

6 0
3 years ago
What two atoms are held together by a covalent bond in NaHCO3
gtnhenbr [62]

Answer: covalent bond is the force of attraction that holds together two atoms that share a pair of valence electrons. Covalent bonds form only between atoms of nonmetals. The two atoms that are held together in a covalent bond may be atoms of the same element or different elements.

Explanation:

8 0
2 years ago
Other questions:
  • Hyperinflation can occur when
    7·2 answers
  • Which atom will form an ionic bond with a Br atom?
    5·2 answers
  • Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2(s) Pb+2(aq) + 2Cl-(aq).
    11·1 answer
  • A gas has a volume of 590ml at a tempature of -55.0 Celsius. What volume will the gas occupy at 30.0 Celsius? Show your work
    12·1 answer
  • As you are researching the Zebra Mussel, keep in mind the following questions. 1. Where is this organism found? 2. How was this
    12·1 answer
  • The right answer for this problem
    12·1 answer
  • 12.) Which type of force is stronger?<br> A)intermolecular forces<br> B)intramolecular forces
    7·2 answers
  • The most laterally placed of the three erector spinae components, the ___________ group, is composed of three parts: cervical, t
    8·2 answers
  • 1) Draw a particle picture of liquid lemonade turning into a solid popsicle <br> BEFORE<br> AFTER
    7·1 answer
  • PLZ HELP ME OUT OF THIS QUESTION....
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!