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
Flauer [41]
3 years ago
13

when an atom is decaying, what number of half lives or percent does it need to decay to to become it's daughter element?

Chemistry
1 answer:
julia-pushkina [17]3 years ago
8 0
I think it is 11.5 hope this help's
You might be interested in
Can someone help Plz
Marrrta [24]

Answer: A. 1.60 liters

Explanation:

2Na_2O_2+2CO_2\rightarrow 2Na_2CO_3+O_2

As can be seen from the balanced chemical equation, 2 moles of CO_2 produce 1 mole of O_2.

According to Avogadro's law, every 1 mole of the gas occupies 22.4 liters at STP.

Thus 2 moles of CO_2 occupies 22.4\times 2=44.8L at STP and produce 1 mole of O_2 i.e. 22.4 L

44.8 L of CO_2 will produce 22.4 L of O_2

Thus 3.20L of CO_2 will produce \frac{22.4}{44.8}\times 3.20=1.60L



6 0
3 years ago
Which alkane is the isomer of butane called 2-methylpropane? A skeletal model of a 4-carbon chain has a straight line extending
solmaris [256]

Answer:

A three-carbon chain has a straight line extending from the center carbon.

Explanation:

Isomers are compounds having the same molecular formula but different structural formulas.

Butane and 2-methylpropane are constitutional isomers. Constitutional isomers differ in the way that the constituent atoms are connected to each other.

Butane is a straight chain compound while the compound 2-methylpropane consists of a three-carbon chain which has a straight line extending from the center carbon.

8 0
2 years ago
Read 2 more answers
How many kilograms are 1.21 x 10^-6 moles of zinc ?
Svetradugi [14.3K]

Answer: The answer is 2.3 x 10 4's.

7 0
3 years ago
If one pound is the same as 454 grams, then convert the mass of 78 grams to pounds.
LiRa [457]

Answer:

0.17 lb

Explanation:

78 g * (1 lb/454 g)=0.17 lb

If you want additional help with chemistry or another subject for FREE, check out growthinyouth.org.

4 0
3 years ago
How are carbon dioxide (CO2) levels in the atmosphere affected by tectonic uplift of rocks and their resultant chemical weatheri
valina [46]

Answer:

The levels of carbon dioxide (CO2) in the atmosphere are reduced

Explanation:

Tectonic uplift refers to the process by which the surface of the earth slowly rises either due to increasing upward force applied from the plates below the surface or decreasing downward force or weight of objects like melting glaciers acting from above. During uplift, land, as well as the sea floor rises forming mountains, plateaus and volcanic Islands.

During the process of weathering, carbon dioxide present in air combines with rainwater and forms carbonic acid. This acidic rainwater then falls on uplifted mountains and rocks weathering them in the process. Minerals present in the rock such as calcium, magnesium and sodium then combine with bicarbonate ions to form carbonates such as calcium carbonate, magnesium carbonate which are found in shells of living and dead organisms and also form rocks such as limestone. In this way, carbon dioxide is removed from the atmosphere.

7 0
3 years ago
Other questions:
  • What is the molar mass of sn(oh)4
    12·1 answer
  • How many grams are in 6.78 x 10^24 atoms of He?
    10·2 answers
  • Why wasn't oxidation type chemical weathering common more than 2 billion years ago?
    15·1 answer
  • Formaldehyde organic or inorganic
    14·1 answer
  • Why is a solution that is 0.10M HCN and 0.10M LiCN considered a good buffer system?
    6·1 answer
  • 3 reasons why aluminium is used in making of cooking vessels
    10·2 answers
  • How did modern scientists experiment with Van Gogh's paints to determine their chemical reactions?
    14·2 answers
  • Can you tell me name of Chemicals in food?​
    14·1 answer
  • PLEASE help i will give brainly if someone answers A pleeease help it will help me answer my other questions
    14·1 answer
  • Which are examples of biotic factors? Select three options.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!