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
Ivenika [448]
4 years ago
5

If a mineral has a daughter to parent ratio of 3:1 (three daughter atoms for every one parent atom), how many half lives have pa

ssed since the mineral formed
Chemistry
1 answer:
earnstyle [38]4 years ago
4 0

25% means has 2 halflives old.

The rock is 57 million years, which would be multiplied to 2(halflives) = 114 million years old.

<span>Therefore, the halflives of the mineral formed is 2 and 1 halflife there is a total of 57 million years.</span>

You might be interested in
How many moles of AIC3 are there in 1,119.972 g ?
Alchen [17]

Answer:

it is 8.40189 moles of AlCl3

mole = mass/molar mass

mole= 1119.972/133.34

6 0
3 years ago
When zinc or aluminum was allowed to react with the copper sulfate , what was the limiting reagen?
musickatia [10]
Usually it is the CuSO4 that is the limiting reagent. 

<span>if all of the color of the solution was gone, but there was still some zinc metal mixed in with the copper metal produced, then Zn is the excess reagent </span>

<span>f all of the color of the solution was not gone, but there was no zinc metal left in with the blue copper solution , then Zn is the limiting reagent Hope this helps.</span>
5 0
4 years ago
9. Which statement provides evidence that supports the Big Bang Theory?* 2 points
liberstina [14]

The statement the chemical makeup of the universe has changed dramatically provides evidence that supports the Big Bang Theory (Option D).

<h3>What is the Big Bang Theory?</h3>

The Big Bang Theory is a widely accepted theory in physics that states all the universe began with a huge explosion and form then matters expanded in space at the same time that it is cooling.

Therefore, with this data, we can see that the Big Bang Theory states that the chemical composition of the universe associated with hydrogen and helium modified since this explosion.

Learn more about the Big Bang Theory here:

brainly.com/question/1973038

#SPJ1

4 0
1 year ago
Read 2 more answers
Please help explain and don't answer if you don't know. thank you
ipn [44]

Answer:

The group 18 elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are non-reactive and are called noble gases as they have their outermost orbit complete. Due to stable electronic configuration they hardly react with other elements.The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.The group 18 elements are called noble or inert gases. As the name suggests these are inert because chemically they are very less reactive or not at all reactive.The full valence electron shells of these atoms make the noble gases extremely stable.

5 0
3 years ago
How many moles of ions are produced by ionization of 2 moles of MgCl2
tensa zangetsu [6.8K]

Answer:

number of ions = 12.04 x 10^²³

Explanation:

n = number of ions/Avogadro's constant

2 = number of ions/6.02 x 10^²³

number of ions= 2 x 6.02 x 10^²³

number of ions = 12.04 x 10^²³

3 0
3 years ago
Other questions:
  • When matter is broken down physically by wind or chemically by salt water, what is this known as?
    12·1 answer
  • Weighted averages, help please
    5·1 answer
  • Using methyl ,phenolphthalein and litmus name an acid
    12·1 answer
  • Why does a hydrogen atom look like it does
    13·2 answers
  • Magnesium is able to ____ copper, and copper is able to ____ magnesium.
    10·1 answer
  • If you find the mass of a sample to be 42.1 g and the actual mass is 42.0 g. What wold be the percent error
    9·1 answer
  • To calculate the enthalpy change for the reaction, 2CO (g) + O2 (g) Imported Asset 2 CO2 (g), you can use ΔHf0 values for each r
    13·1 answer
  • What are some differences between a family tree and evolutionary
    7·1 answer
  • Why agar is used as a solidifying agent in culture media instead of gelatin
    14·1 answer
  • How many amps are required to produce 75. 8 g of iron metal from a solution of aqueous iron(iii)chloride in 6. 75 hours?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!