answer.
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
Gennadij [26K]
2 years ago
15

In a laboratory, Nakisha mixes a sodium hydroxide solution with an indicator called phenolphthalein. When combined, they create

a pink solution. Nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. How could Nakisha use the scientific inquiry process to determine whether mixing other solutions with phenolphthalein will also create a pink color? Check all that apply. by making qualitative observations about the sodium hydroxide and phenolphthalein in solution by asking a classmate if sodium hydroxide turns pink when mixed with other solutions by comparing the given solution to other familiar solutions containing phenolphthalein by designing an experiment to test phenolphthalein with other solutions by repeating the experiment at different temperatures
Physics
2 answers:
Gnesinka [82]2 years ago
8 0

by making qualitative observations about the sodium hydroxide and phenolphthalein in solution

by comparing the given solution to other familiar solutions containing phenolphthalein

by designing an experiment to test phenolphthalein with other solutions

Lapatulllka [165]2 years ago
8 0

Answer:

1. by making qualitative observations about the sodium hydroxide and phenolphthalein in solution

3. by comparing the given solution to other familiar solutions containing phenolphthalein

4. by designing an experiment to test phenolphthalein with other solutions

You might be interested in
A diver explores a shallow reef off the coast of Belize. She initially swims d1 = 74.8 m north, makes a turn to the east and con
Nataly [62]

Answer:R=1607556m

θ=180degrees

Explanation:

d1=74.8m

d2=160.7km=160.7km*1000

d2=160700m

d3=80m

d4=198.1m

Using analytical method :

Rx=-(160700+75*cos(41.8))= -160755.9m

Ry= -(74.8+75sin(41.8))-198.1=73m

Magnitude, R:

R=√Rx+Ry

R=√160755.9^2+20^2=160755.916

R=160756m

Direction,θ:

θ=arctan(Rx/Ry)

θ=arctan(-73/160755.9)

θ=-7.9256*10^-6

Note that θ is in the second quadrant, so add 180

θ=180-7.9256*10^6=180degrees

8 0
2 years ago
A ball of mass m is found to have a weight Wx on Planet X. Which of the following is a correct expression for the gravitational
Naya [18.7K]

Answer: B. The gravitational field strength of Planet X is Wx/m.

Explanation:

Weight is a force, and as we know by the second Newton's law:

F = m*a

Force equals mass times acceleration.

Then if the weight is:

Wx, and the mass is m, we have the equation:

Wx = m*a

Where in this case, a is the gravitational field strength.

Then, isolating a in that equation we get:

Wx/m = a

Then the correct option is:

B. The gravitational field strength of Planet X is Wx/m.

4 0
2 years ago
Alex has a 100 cm ruler pivoted at the centre. She ties a balloon filled with carbon doxide 16 cm from the pivot The total weigh
Leona [35]
If people send links report them
5 0
2 years ago
Classify the sentences based on whether they describe temperature or thermal energy.
KiRa [710]
Thermal energy energy that has hot cold or warm
Temp.Energy is the out come of the thermal engery and affects Earth and space
7 0
2 years ago
The National Ignition Facility at Lawrence Livermore National Laboratory initiates nuclear fusion by converging 192 laser beams
lilavasa [31]

Answer:

9.6x10¹³watt

Explanation:

See attached file

8 0
3 years ago
Other questions:
  • Rank the tensions in the ropes, t1, t2, and t3, from smallest to largest, when the boxes are in motion and there is no friction
    13·1 answer
  • Explain why ice cubes formed from water of a glacier freeze at a higher temperature than ice cubes
    12·1 answer
  • This is a physical property of all visible light determined by the light's frequency and visible to the human eye.
    9·1 answer
  • What is the final temperature when a 3.0 kg gold bar at 99 0C is dropped into 0.22 kg of water at 25oC?
    6·1 answer
  • A cyclist going downhill is accelerating at 1.2 m/s2. If the final velocity of the cyclist is 16 m/s after 10 seconds, what is t
    11·2 answers
  • A crate on a motorized cart starts from rest and moves with a constant eastward acceleration ofa= 2.60 m/s^2. A worker assists t
    12·1 answer
  • A solenoid that is 35 cm long and contains 450 circular coils 2.0 cm in diameter carries a 1.75-A current. (a) What is the magne
    9·2 answers
  • A certain alarm clock ticks four times each second, with each tick representing half a period. The balance wheel consists of a t
    15·1 answer
  • Two parallel plates are a distance apart with a potential difference between them. a point charge moves from the negatively char
    7·1 answer
  • Odległość między kolejnymi grzbietami fal na morzu wynosi 20 m. Łódź opada z grzbietu fali, unosi się i osiąga ponownie najwyższ
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!