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
Sveta_85 [38]
3 years ago
13

A pesticide is used to kill crops in a field. A scientist wants to learn how the pesticide is affecting the plants and animals n

ear the field. Which procedure would be most useful? measuring the radioactivity of a sample of untreated pesticide introducing a radioactive tracer to common compounds in the soil subjecting the pesticide to neutron activation analysis introducing a radioactive tracer into a sample of pesticide
Chemistry
1 answer:
Nezavi [6.7K]3 years ago
8 0

Answer:

introducing a radioactive tracer into a sample of pesticide

Explanation:

You might be interested in
How much pressure would 0.8 moles of a gas at 370K exert if it occupied 17.3L of space
dezoksy [38]

Answer:

1.40 atm is the pressure for the gas

Explanation:

An easy problem to solve with the Ideal Gases Law:

P . V = n . R .T

T° = 370K

V = 17.3L

n = 0.8 mol

Let's replace data → P . 17.3L = 0.8mol . 0.082L.atm/mol.K . 370K

P = (0.8mol . 0.082L.atm/mol.K . 370K) / 17.3L = 1.40 atm

7 0
3 years ago
Read 2 more answers
An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?
ludmilkaskok [199]
<h2>Answer:  # of neutrons = 9</h2>

<h3>Explanation:</h3>

# of neutrons = mass number - atomic number

                      = 17 - 8

                      = 9

<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>
3 0
2 years ago
Which two parts of the atom are found in nucleus?
faust18 [17]

Answer:

protons and neutrons are found in nucleus

6 0
3 years ago
Read 2 more answers
Which of the following is non polar covalent bond?
vladimir2022 [97]

Answer:

N-Cl

Explanation:

Look at the chart below. Since N-Cl bond has a electronegativity difference of (3.0-3.0) zero, they are non-polar.

5 0
2 years ago
Which of the following is TRUE? a neutral solution does not contain any H3O+ or OH- a neutral solution contains [H2O] = [H3O+] a
Gnom [1K]

Answer:

Options B and C

Explanation:

Let's take a look at the options and get our answer by way of elimination. The basic definition of a neutral solution is given as;

A neutral solution is a substance which is neither acid nor basic . it has a PH of 7. it will have equal amount of H+ AND OH- ions in it.

a) a neutral solution does not contain any H3O+ or OH- This is wrong because take water as an example, it is neutral but contains both ions.

b) a neutral solution contains [H2O] = [H3O+]. This option is correct cause it is in line with the definition above.

c) an acidic solution has [H3O⁺] > [OH⁻]. Acidic solutions are any solution that has a higher concentration of hydrogen ions than water. This option is correct.

d) a basic solution does not contain any H3O⁺. This option is wrong. Basic solutions are any solution that has a higher concentration of hydroxide ions than water. This means they contain H3O⁺ but  [OH⁻] is greater.

7 0
3 years ago
Other questions:
  • Which of the following elements would be best to use to make wires that conduct heat?
    7·1 answer
  • Etahnol has a density of 0.79 g/ml. what is the volume, in quarts, of 1.80 kg of alcohol?
    14·1 answer
  • Contrast molecules, compounds and ions
    8·1 answer
  • water H2O is made up of different elements hydrogen and oxygen is this type of combination of mixture or a pure substance
    6·2 answers
  • What are the Oxidation numbers for H2AsO4-
    12·2 answers
  • When the equation 
    8·1 answer
  • 16. DNA in a eukaryotic cell is contained in
    5·2 answers
  • The form in which the chemical energy is stored in cells during photosynthesis
    9·1 answer
  • HELP ME PLS Asap :Which type of line is shown on the map?
    7·1 answer
  • Write the equation for the acid dissociation, write the Ka expression, solve for Ht concentration, then do an ICE chart. Put the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!