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
kaheart [24]
3 years ago
15

This indicator becomes colored when the solution is no longer acidic.

Chemistry
1 answer:
Irina-Kira [14]3 years ago
3 0

Answer:

Is pink in base solution, it provides a visual signal that a solution has changed from acid to a base, is colorless in acid solution.

Explanation:

As all the indicator, phenolphtalein has the property that turns pink when the solution that you have reaches a value of a pH of 9 or above. From 0 to 8 in a pH scale, is colorless. This point in which an indicator changes is it called equivalence point.

You might be interested in
A softball is thrown with 145 Joules of kinetic energy. If the ball is moving at 20.0 m/s, what is the mass of the ball in kg?
Tasya [4]

Answer:

0.725 kg

Explanation:

Step 1: Given data

  • Kinetic energy of the softball (K): 145 J
  • Speed of the softball (v): 20.0 m/s
  • Mass of the softball (m): ?

Step 2: Calculate the mass of the softball

We will use the following expression.

K = 1/2 × m × v²

m = 2 K / v²

m = 2 × 145 J / (20.0 m/s)²

m = 0.725 kg

The mass of the softball is 0.725 kg.

3 0
3 years ago
What is the energy of light with a wavelength of 468 nm? (The speed of light
marshall27 [118]

The answer for the problem is explained below.

The option for the answer is "D".

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

Explanation:

Given:

wavelength (λ) = 468 nm = 468×10^-9 m

speed of light (c) = 3.00 x 10^8m/s

Planck's constant is 6.626 x 10^-34J·s

To solve:

energy of light (E)

We know,

E =(h×c) ÷ λ

E = ( 6.626 x 10^-34 ×  3.00 x 10^8) ÷ 468×10^-9

E = 4.25 × 10^-19 J

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

6 0
2 years ago
What state of matter is the body mostly made up of
Alinara [238K]
Liquid makes up most of the body
5 0
3 years ago
Does adding milk impact the health benefits of the tea? Use your understanding from this unit about solutions and food chemistry
mezya [45]
Yes, it mixes it and has vitamins in the tea.
5 0
3 years ago
Alex cut a pizza into 8 equal slices. He removed 2 of the slices of pizza. What is the measure of the angle made by the missing
Firlakuza [10]

Answer: 90 degrees.

Explanation:

4 0
2 years ago
Other questions:
  • HELP ASAP!!! How many grams of lead are in a 41.2 gram sample of lead (II) oxide? With work please :)
    15·1 answer
  • The label on an ocean spray cran-rasberry drink lists 30 g of sugar in 240 ml of drink. I weighed 240 ml of drink and found its
    10·1 answer
  • 2. PART B: Which detail from the text best supports
    15·1 answer
  • What is the standard cell notation of a galvanic cell made with zinc and gold?
    6·1 answer
  • Need help on this questyion
    12·1 answer
  • What is the relationship in numbers of particles and pressure
    8·1 answer
  • B. Directions: Identify the factors affecting the different seasons in the Philippines.
    8·1 answer
  • Which characteristics show that large herbivores are adapted to the taiga?
    8·2 answers
  • What is the least appropriate hypothesis for Eric to make?
    9·1 answer
  • Why might an earthquake have more than one intensity value
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!