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
loris [4]
3 years ago
5

The half-life of a pesticide determines its persistence in the environment. A common pesticide degrades in a first-order process

with a rate constant of 6.5 1/hours. What is the half-life in hours of the breakdown reaction? Enter to 4 decimal places.
Chemistry
1 answer:
denis23 [38]3 years ago
7 0

Answer:

0.1066 hours

Explanation:

A common pesticide degrades in a first-order process with a rate constant (k) of 6.5 1/hours. We can calculate its half-life (t1/2), that is, the times that it takes for its concentration to be halved, using the following expression.

t1/2 = ln2/k

t1/2 = ln2/6.5 h⁻¹

t1/2 = 0.1066 h

The half-life of the pesticide is 0.1066 hours.

You might be interested in
A glycosidic bond between two monosaccharides can also be classified as a(n) ________.
Natali5045456 [20]

<span>Here we are asked to know the type of bond between a  glycosidic bond. A glycosidic bond is a type of bond that exists between a carbohydrate molecule to another carbohydrate molecule. A glycosidic bond creates between two monosaccharides can also be called as an ether bond.</span>

8 0
3 years ago
As you move across the period on the periodic table what pattern can be described about the electron configurations?
xeze [42]

Answer:

Elements in the same period have same number of electronic shell and electron is increased by one in every coming element with in same electronic shell.

Explanation:

Consider the second period of periodic table. This period consist of eight elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.

Electronic configuration of lithium:

Li₃ = [He] 2s¹

Electronic configuration of beryllium:

Be₄ = [He] 2s²

Electronic configuration of boron:

B₅ = [He] 2s² 2p¹

Electronic configuration of carbon:

C₆ = [He] 2s² 2p²

Electronic configuration of nitrogen:

N₇ = [He] 2s² 2p³

Electronic configuration of oxygen:

O₈ = [He] 2s² 2p⁴

Electronic configuration of fluorine:

F₉ = [He] 2s² 2p⁵

Electronic configuration of neon:

Ne₁₀ = [He] 2s² 2p⁶

All these elements present in same period having same electronic shell and number of electron increased by 1.

4 0
3 years ago
How does the number of valence electrons determine the type and number of bonds an element forms?​
Advocard [28]
The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. ... Nonmetals tend to attract additional valence electrons to form either ionic or covalent bonds.
8 0
3 years ago
The combining of hydrogen and oxygen gas into liquid water is an example of what kind of change?
KatRina [158]
The combining of hydrogen and oxygen gas into liquid=H2O (water) is a compound or a molecule because it is 2 different elements combined with chemical bonds so its Chemical. B 
7 0
3 years ago
I need help can you help
telo118 [61]
I can sure try to help!
8 0
3 years ago
Other questions:
  • When a substance undergoes a chemical change its identity does not change true or false
    5·1 answer
  • What is a compounds
    12·1 answer
  • It was mentioned that you should not expect the pH of distilled water to be 7.00 as ordinarily measured in the laboratory. What
    8·1 answer
  • Question 2 (1 point)
    15·1 answer
  • What is the chemical formula for borax
    13·2 answers
  • PLSSS HELP MEE<br><br><br>CH3COOH + Mg<br>CH3-COOH+MgO<br>CH3 -COOH + Mg(OH)2<br>CH3-COOH + MgCO3​
    11·1 answer
  • How many valence electrons does group 18 have
    6·2 answers
  • Please help I’ll put u Brainlyiest.
    13·1 answer
  • 14)
    8·1 answer
  • how many monochloro substitution products are produced when the alkanes below are chlorinated? consider constitutional isomers o
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!