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
Kaylis [27]
3 years ago
11

Answer the following questions:

Chemistry
1 answer:
Lynna [10]3 years ago
7 0
The relationship of radiation with distance obeys the inverse square law. Therefore, doubling the distance decrease the radiation by a factor of 4. The new count is 250.
1) Applying the same principle, the count decreases by a factor of 100. The new count is 10
2) An alpha particle is 4He2 and the Hydrogen can be represented as 1H1
14N7 + 4He2 - 1H1
= 17X8
Proton number 8 belongs to Oxygen. Therefore, the resultant nucleus is:
17O8
3) 185Au79 - 4He2
= 181Ir77
4) X - 4He2 = 234Th90
X = 238U92
5) Beta emission results in the same nucleon number but an increase in the proton number; therefore, the result is:
234Pa91
You might be interested in
What type of reaction is shown below?
Lemur [1.5K]
<span>What type of reaction is shown below? 

2H2O2 → 2H2O + O2

A. synthesis
B. decomposition
C. combustion</span>decomposition

answer is B
8 0
3 years ago
Read 2 more answers
Which of the following is the correct formula for barium (II) sulfate?
nasty-shy [4]
BaSO4 is the correct formula for barium (ll) sulfate
5 0
3 years ago
Read 2 more answers
Thermal energy is __________.
Gekata [30.6K]

Answer:

Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

Credit:

https://www.solarschools.net/knowledge-bank/energy/types/thermal

5 0
3 years ago
Read 2 more answers
Law of Conservation of Mass in terms of atoms
VARVARA [1.3K]

No atoms are lost or made during the chemical reaction so the total mass of the products is equal to the total mass of the reactants. In an atom, protons and neutrons contribute to the mass and since the number of them doesn’t change, the mass doesn’t either.

4 0
3 years ago
What do you need in order to generate electricity using light from the sun?
Klio2033 [76]
Solar panels ( Solar-powered photovoltaic )
6 0
3 years ago
Other questions:
  • Living and nonliving things cheetahs interact with
    7·2 answers
  • Help please ASAP<br><br> How is salicylic acid obtained?
    11·1 answer
  • What is bank?Effect of drug abuse.<br>​
    14·1 answer
  • Which observations is the best evidence that unknown liquid X is a composed of only pure substance
    8·1 answer
  • Dana is trying to determine if an unknown sample is a pure substance or not. The sample has a cloudy white color, and it seems e
    14·1 answer
  • Calculate a reasonable amount (mass in g) of your unknown acid to use for a titration. You will want about 30 mL of titrant to g
    9·1 answer
  • The value of Henry's law constant for oxygen in water at 242C is 1.66 x 1 ox M/torr. b. c. Calculate the solubility of oxygen in
    5·1 answer
  • The diagram shows two people pulling a wagon in the same direction. One person is pullig with a force of 150 Newtons and the oth
    9·2 answers
  • Which of these is NOT part of the nervous system?
    14·2 answers
  • Can someone help? <br><br> Name the compound:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!