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
quester [9]
3 years ago
7

A chemical indicator that changes colors depending on the concentration of h+ in the solution is called a

Chemistry
1 answer:
DanielleElmas [232]3 years ago
3 0
Answer is: acid-base indicator or pH indicators.

Acid-base indicators are usually weak acids or bases and they are chemical<span> detectors for hydrogen or hydronium cations.</span>
Example for acid-base indicator is phenolphthalein (molecular formula C₂₀H₁₄O₄). Phenolphthalein is <span>colorless in </span>acidic<span> solutions and pink in </span>basic<span> solutions.
Another example is m</span><span>ethyl orange. It is red colour in acidic solutions and yellow colour in basic solutions.</span>

You might be interested in
18.
Leno4ka [110]

Answer:

It helps the body remove heat through sweating.

Explanation:

When the weather is hot, the body tries to keep cool by sweating. The high specific heat capacity means that the body doesn't have to lose much water to stay cool.

The high specific heat capacity of water doesn’t heat the body, but it slows down the rate of heat loss when the weather is cool.

B is wrong. The body uses glucose, not water, as an energy source.

C is wrong. The high specific heat capacity of water is not connected with the body's ability to store it.

D is wrong. The high specific heat capacity of water doesn't heat the body, but it slows the rate at which it cools.

6 0
2 years ago
Read 2 more answers
Human reaction time is usually about 0.18 s. If your lab partner holds a ruler between your finger and thumb and releases it fro
Marizza181 [45]

Answer:

–0.16 m

Explanation:

From the question given above, the following data were obtained:

Time (t) = 0.18 s

Acceleration due to gravity (g) = –9.81 m/s²

Height (h) =?

We can obtain how far the ruler will fall by using the following equation:

H = ½gt²

H = ½ × –9.81 × 0.18²

H = ½ × –9.81 × 0.0324

H = –0.16 m

Thus, the ruler will fall –0.16 m before you will catch it.

7 0
2 years ago
What is the salt produced when calcium hydroxide, Ca(OH)2, reacts with phosphoric acid, H3PO4, in a neutralization reaction?
Pavel [41]
3Ca(OH) _{2} +2H _{3} PO _{4}⇒6H _{2} O+Ca _{3}(PO _{4}) _{2}
Calcium phosphate.  Which is your Ca3(PO4)2.
5 0
2 years ago
Read 2 more answers
7. The nuclear model and the solar system model both show atoms with electrons circling around
Keith_Richards [23]

These models are similar because "both the nuclear model and the solar system model have concept of nucleus, electron, positively charged nucleus at center and electrons orbiting around the nucleus".

<u>Explanation:</u>

The points which showcase similarities among both the atomic structure and the composition of the solar system are like the large percentage of the mass centered in the core which is the nucleus or the sun. Attractive forces bring the structure together by application of electromagnetic force or gravitational force.

The existence of the external objects influences the stable state of other surrounding objects as suggested by Pauli theory of exclusion and gravitational disturbance. Overall on the basis of the view only, in both the model their is similarity like atomic model speaks about electrons orbiting the nucleus similar to planets orbiting the sun.

6 0
3 years ago
How many valence electrons would be used in drawing the Lewis Structure CF4?
Elis [28]

Answer:

32

Explanation:

You have 7 valance electrons in fluorine, and you have 4 of them. 7*4=28. Then, you have 4 valance electrons on carbon. So 28+4=32

3 0
2 years ago
Read 2 more answers
Other questions:
  • How many moles of c9h8o4 are in a 0.600 g tablet of aspirin?
    12·2 answers
  • Find the volume in milliliters of 2.00 mol of an ideal gas at 36°C and a pressure of 1120 torr.
    14·1 answer
  • Which of the following statements correctly distinguishes between an acidic and a basic solution?
    6·2 answers
  • A strong acid, HA, is added to water. Which statement about the solution is true
    10·1 answer
  • Indicate whether the following represents a Chemical or Physical change: Gasoline burns in air
    10·2 answers
  • Why is the manatee classified as an herbivore?
    7·2 answers
  • 1pt Which is an example of an alloy?<br> O A. steel<br> OB. salt water<br> O C. air<br> O D. iron
    7·1 answer
  • While spending the weekend in your cabin, you burn wood in your pot-bellied stove to heat a kettle of water for tea. Answer the
    15·2 answers
  • How many atoms in Alka-Seltzer
    8·2 answers
  • Which represents the overall (net) reaction of this mechanism: step 1: H2O2 + I- → H2O + OI- step 2: H2O2 + OI- → H2O + O2 + I-
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!