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
Dafna11 [192]
4 years ago
6

Iodine-131 is used to

Chemistry
1 answer:
Yakvenalex [24]4 years ago
7 0

Iodine 131 is a radioisotope with a very short half-life of 8.02 days, making it highly radioactive. Frequently used in small doses in thyroid cancers therapies, it is also one of the most feared fission products when accidentally released into the environment. Radiotoxicity of iodine 131.

You might be interested in
How many moles of water are produced when 2 moles of NaHCO3 react with 2 moles of HCI?
Tju [1.3M]

Answer:

H₂O = 3.56 moles

MgCl₂ = 1.78 moles

Explanation:

7 0
3 years ago
Write the simple equation that describes the action of the enzyme catalase.
Nataly [62]

Here we have to write a simple equation which describes the action of the enzyme catalase.

The equation is: The concentration of the complex [ES] = \frac{[E]0}{1+\frac{Km}{[S]} }

Let us consider an enzyme catalyses reaction E + S ⇄ ES → E + P

Where E, S, ES and P are enzyme, substrate, complex and product respectively.

The concentration of the complex [ES] = \frac{[E]0}{1+\frac{Km}{[S]} }, where K_{m} is the Michaelis constant.

[E]₀ and [S] is the initial concentration of enzyme and concentration of substrate respectively.    

5 0
3 years ago
Pls i need help with this
gregori [183]

Answer:

C

Explanation:

A physical change is one in which no new substance is formed. The moistening of food by saliva is purely a physical change because no new substance is formed in the process.

A chemical change leads to the formation of a new substance. The action of the enzyme converts starch into sugar which means that a new substance is formed. This is a chemical change.

5 0
3 years ago
If electromagnetic radiation has a frequency of 2.0×1015s−1, what is the radiation’s energy?(1 point)
Alika [10]
  • Frequency=v=2×10^15Hz
  • Energy=E

Using planks quantum theory

\\ \sf\longmapsto E=hv

\\ \sf\longmapsto E=6.626\times 10^{-34}Js\times 2\times 10^{15}s^{-1}

\\ \sf\longmapsto E=13.252\times 10^{-19}J

\\ \sf\longmapsto E=1.3\times 10^{-18}J

7 0
3 years ago
Percent Composition and Determining Empirical And Molecular Formulas
raketka [301]

Answer:

% comp. H = 2.8%, % comp. Cl = 97.2%

Explanation:

HCl mass = mass of H + mass of Cl

HCL mass = 1.00794 + 35.453 = 36.46094

% comp. of H = 1.007694 / 36.46094 x 100 = around 2.8% (2.76376308455)

% comp. of Cl = 35.453 / 36.46094 x 100 = around 97.2% (97.2355622208)

3 0
2 years ago
Other questions:
  • Which of the following is a starting compound during cellular respiration? Carbon dioxide Glucose Mitochondria Water
    8·2 answers
  • Which statement about oxidation and reduction in a voltaic cell is true?
    11·2 answers
  • The materials created from a chemical reaction are called
    12·2 answers
  • Do elements of the halogen family lose one electron to become halide ions
    8·1 answer
  • Which would react chemically by forming a covalent bond?
    15·1 answer
  • NaOH is a strong base. What two ions do you expect to find in a solution of NaOH?
    13·1 answer
  • There are three ways in which heat be transferred - conduction, convection, and radiation. Which types of thermal transfer invol
    7·1 answer
  • Based on the balanced equation: 2 K + Cl2 --> 2KCl what is the mole ratio of K to KCl
    15·1 answer
  • Molybdenum can form a wide series of halide compounds, including four different fluoride compounds. The percent by mass of molyb
    6·1 answer
  • Does a displacement reaction take place in iron + sodium chloride? and if so why?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!