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
Lelu [443]
3 years ago
13

True or false. an object's weight is constant in all circumstances​

Chemistry
1 answer:
Sindrei [870]3 years ago
3 0

Answer: False

Explanation: False, what if its in space?

You might be interested in
A 5.5 × 10–3 M solution of fluoroacetic acid, CH2FCOOH, has a pH of 2.57. What is the acid-dissociation constant, K a, of this a
lianna [129]

The acid dissociation constant is 1.3 × 10^-3.

<h3>What is acid-dissociation constant?</h3>

The acid-dissociation constant is a constant that shows the extent of dissociation of an acid in solution. We have to set up the reaction equation as shown below;

Let the acid be HA;

                  HA       +      H2O ⇄      H3O^+      +      A^-

since the pH of the solution is 2.57 then;

[H3O^+] = Antilog(-pH) = Antilog(-2.57) = 2.7 × 10^-3

We can see that; [H3O^+]  = [A^-] so;

Ka = (2.7 × 10^-3)^2/(5.5 × 10^–3)

Ka = 1.3 × 10^-3

Learn more about acid-dissociation constant: brainly.com/question/9728159

6 0
2 years ago
Select the compounds that cannot undergo friedel crafts alkylation. check all that apply. check all that apply. aniline phenol k
mr Goodwill [35]

Freidal craft reaction is the attack of a carbon or carbon chain on aromatic ring with the help of anhydrous AlCl3 to produce alkylated benzene ring.

Only ketone not be able to undergo friedal craft reaction as, it is not aromatic compound whereas all the given reactants are aromatic and gives friedal craft reaction.

5 0
3 years ago
Please help I'm begging you I'll give so much brainliest​
slava [35]
H2O (water) has 2 hydrogen atoms and 1 oxygen atom.
6 0
3 years ago
What is the balanced equation for naphthalene and sulphur?​
Marianna [84]

napthalene: C10H8 sulphur: S02

Explanation:

C10H8

7 0
3 years ago
Why do scientists use models to study atoms?
umka2103 [35]
Because atoms are the small and can't be seen by your eyes. It is so small that scientists need to use a model. A model help scientists study things. So, scientists needs to study atoms using models.
3 0
3 years ago
Other questions:
  • Among teenagers, what is the most commonly used substance?
    9·1 answer
  • What is a stable and radioactive isotopes
    6·1 answer
  • An atom with 4 protons, 5 neutrons, and 4 electrons has an atomic mass of _____ amu. (Enter a whole number.)
    13·2 answers
  • To create a neutral solution, the number of h+ ions __________ to the number of oh- ions
    8·1 answer
  • Write a program that allows the user to enter a number of quarters, dimes, and nickels and then outputs the monetary value of th
    13·1 answer
  • What is the symbol of gold ​
    11·2 answers
  • Question 15
    7·1 answer
  • Which will have a greater inertia the moon or the earth​
    6·2 answers
  • For a constant force, when the surface area is tripled the
    10·1 answer
  • Which iS required for both anaerobic respiration and aerobic respiration?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!