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
OverLord2011 [107]
3 years ago
6

You place a ton of radioactive material into a lead box and close the box.

Chemistry
1 answer:
miss Akunina [59]3 years ago
3 0

Answer:

Beta particles and neutrons

Explanation:

Lead is not particular good for shielding beta particles and neutrons. Lead shielding is used for shielding x-rays and gamma-rays due to its high density and atomic mass.

Materials made with lead are used by people dealing with all kinds of radioactive particles to prevent radioactive poisonings.

But lead cannot effectively protect against beta particles and neutrons.

You might be interested in
If gold gets hot enough it will melt, what type of change is this?
SashulF [63]
A.
Physical change
Step by step explanation;:)
8 0
3 years ago
Read 2 more answers
How many moles in Co are there in 6 billion Co atoms
nasty-shy [4]
Hello there!

<span> Use Avogadro's number, 1 mol = 6.02 x 10^23 atoms. 
</span>Convert atoms to moles and you get:

<span>9.97x10^(-15) moles Co
</span>
Hope This Helps You!
Good Luck :)
3 0
3 years ago
What type of reaction is shown in the following chemical equation in NH3+HC1 NH4C1​
natulia [17]

Explanation:

combination reaction

3 0
3 years ago
Read 2 more answers
Many double-displacement reactions are enzyme-catalyzed via the "ping pong" mechanism, so called because the reactants appear to
zhenek [66]

Answer:

<u>D. It will decrease by a factor of 4</u>

Explanation:

According to the question , the equation follows :

A+B\rightarrow C+D

Rate law : This states the rate of reaction is directly proportional to concentration of reactants with each reactant raised to some power which may or may not be equal to the stoichiometeric coefficient.

Rate\ \alpha [A]^{a}[B]^{b}

r=[A]^{a}[B]^{b}.................(1)

STEP": First, find out the power "a" and "b"

a+b = 3 (because it is given that the reaction follow 3rd order-kinetics)

According to question, <u><em>doubling the concentration of the first reactant causes the rate to increase by a factor of 2 means,</em></u>

r' = 2r if [A'] = 2[A]

Here [B] is uneffected means [B']=[B]

hence new rate =

r'=[A']^{a}[B']^{b}

Put the value of [A'] , [B'] and r' in the above equation:

2r=[2A]^{a}[B]^{b}...........(2)

Divide equation (1) by (2) we , get

\frac{2r}{r}=\frac{[2A]^{2}[B]^{b}}{[A]^{a}[B]^{b}}

2= 2(\frac{A}{A})^{a}\times (\frac{B}{B})^{b}

Here A and A cancel each other

B and B cancel each other

We get,

2= 2^{a}\times 1^{b}

1^b = 1 ( power of 1 = 1)

2= 2^{a}

This is possible only when a = 1

We know that : a + b = 3

1 + b = 3

b =3 -1  = 2

b = 2

Hence the rate law becomes :

r=[A]^{a}[B]^{b}

<u>r=[A]^{1}[B]^{2}.............(3)</u>

Look in the question now, it is asked to calculate the concentration of [B],if  cut in half

Hence

[B']=1/2[B]

Insert the value of [B'] in equation (3)

r'=[A]^{1}[B']^{2}

r'=[A]^{1}(\frac{1}{2}[B])^{2}

r'=\frac{1}{4}[A]^{1}[B]^{2}............(a)

But

r=[A]^{a}[B]^{b}..............(b)

Compare equation (a) and (b) , we get

new rate r' =

<u>r' = 1/4 r</u>

7 0
3 years ago
I'm having with chemistry assignments I need a help
chubhunter [2.5K]

Answer:

the question please? illl help

5 0
2 years ago
Other questions:
  • The density of benzene at 15 ∘c is 0.8787 g/ml. calculate the mass of 0.1000 l of benzene at this temperature.
    12·2 answers
  • 12. How are secondary sources of energy different from other energy resources?<br> (Plz help)
    12·1 answer
  • What are the properties of gas
    15·2 answers
  • Consider the following reaction:
    15·1 answer
  • The highest pressure ever produced in a laboratory setting was about 2.0 x 10 6 atm. If we have a
    13·1 answer
  • Which of the following options correctly balances the equation below? __HNO2 + __O2 --&gt; __HNO3
    5·1 answer
  • A sample of strontium bicarbonate weighs 5.0020 mg. How many oxygen atoms are in the sample? I have the answer, but don't unders
    13·1 answer
  • When magnesium hydroxide reacts with nitric acid, it produces magnesium nitrate and water.
    11·1 answer
  • Which property could allow a student to easily separate sand and iron filings?(1 point)
    12·1 answer
  • determine the strongest intermolecular force in pure samples of each of the following: a. h2o b. cf4 c. co2 d. ph3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!