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
expeople1 [14]
3 years ago
8

Fter a radioactive atom decays, it is the same element that it was before with no measurable change in mass. Which kind of decay

has occurred, and how do you know?
Chemistry
2 answers:
Alborosie3 years ago
6 0

After a radioactive atom decays, it is the same element that it was before with no measurable change in mass. the decay that is present is gamma decay because gamma decay has photons which has no mass unlike alpha and beta decay.

Rina8888 [55]3 years ago
6 0

Answer:

D

Explanation:

on edge 2020

You might be interested in
Mass of NaHCO3 sample (g): 1.20 g
sasho [114]

Answer: (22.98977 g Na/mol) + (1.007947 g H/mol) + (12.01078 g C/mol) + ((15.99943 g O/mol) x 3) = 84.0067 g NaHCO3/mol

9.

(1.20 g NaHCO3) / (84.0067 g NaHCO3/mol) = 0.0143 mol NaHCO3

10.

Supposing the question is asking about "how many moles" of CO2. And supposing the reaction to be something like:

NaHCO3 + H{+} = Na{+} + H2O + CO2

(0.0143 mol NaHCO3) x (1 mol CO2 / 1 mol NaHCO3) = 0.0143 mol CO2 in theory

11.

n = PV / RT = (1 atm) x (0.250 L) / ((0.0821 L atm/K mol) x (298 K)) = 0.0102 mol CO2

12.

(0.0143 mol - 0.0102 mol) / (0.0143 mol) = 0.287 = 28.7%

Explanation:

6 0
3 years ago
Yusef adds all of the values in his data set and then divides by the number of values in the set. What is Yusef most likely find
Zanzabum

He is most likely finding the mean of the data.

7 0
2 years ago
Read 2 more answers
What is a siesmograph
erastova [34]

Answer:

measures earth or ground movement such as earthquake

4 0
3 years ago
How to balance Kmno4 + H2 So4+ CH3CH2OH-> K2So4+ mnso4 + CH3COOH + H2o by oxidation number method ​
dezoksy [38]

Answer:

Ethanol + Potassium Permanganate + Sulfuric Acid = Acetic Acid + Manganese(II) Sulfate + Water + Potassium Sulfate

Explanation:

5 0
2 years ago
¿How do the products of the reaction to the phenol red test and the splint test? Please help me it's for today.! :((​
laila [671]

Answer:

The answer in this question is show you made Sodium Hydroxide and Hydrogen Gas.In order to do the products of the reaction relate to the phenol red test and the splint test you need to show that you made Sodium Hydroxide and Hydrogen Gas. Show that you made Sodium Hydroxide and Hydrogen Gas so that the products of the reaction relate to the phenol red test and the splint test.

5 0
2 years ago
Other questions:
  • Which of the following equations is balanced in an acidic solution?
    12·1 answer
  • What happens when the same kind of atoms combine​
    12·2 answers
  • Scientists are trying to find chemicals that will be helpful to agriculture but which will not ____ the environment
    6·1 answer
  • In which example is the force of friction the greatest?
    10·2 answers
  • Which is the larger atom S or Mg
    13·1 answer
  • The equilibrium constant for the gas phase reaction
    9·1 answer
  • An adaptation allows an organism to _________________.
    6·1 answer
  • Which substance is an example of a colloid?
    13·1 answer
  • : What role does the sun play in photosynthesis?​
    10·2 answers
  • Dan wants to test the effects of different amounts of antibiotic on bacteria. While setting up his experiment he makes sure to u
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!