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
posledela
2 years ago
15

A student was given four unknown solutions. Each solution was checked for. conductivity and tested with. phenolphthalein. The re

sults are shown in the data table below
based on the data table which unknown solution could be 0.1 M NaOH
1.A. 2.B
3.C. 4.D
The table is that it talks about is in the picture attached

Chemistry
1 answer:
777dan777 [17]2 years ago
4 0

Answer: (3) C

Explanation:

You might be interested in
A battery changes chemical energy into _____.
Sophie [7]
It turns chemical into electricity 
5 0
3 years ago
Read 2 more answers
What is the total number of moles represented by 20 grams of CACO3
Nutka1998 [239]

Answer:

B. 0.2.

Explanation:

  • We can use the relation:

<em>n = mass/molar mass</em>

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

<em>∴ n = mass/molar mass = </em>(20 g)/(100.0869 g/mol) <em>= 0.1998 ≅ 0.2 mol.</em>

<em></em>

<em>So, the right choice is: B. 0.2.</em>

8 0
3 years ago
M
vlada-n [284]

Answer:

El cocodrilo se arrastró durante 20.833 segundos.

Explanation:

El enunciado presenta omisiones y errores conceptuales. La forma correcta es la siguiente: <em>"Un cocodrilo se arrastró 25 metros hacia la derecha con una  rapidez promedio de 1.2 metros por segundo. ¿Cuántos segundos se arrastró el cocodrilo?"</em>

Consideremos que el cocodrilo tiene un movimiento rectilíneo uniforme, el tiempo requerido para el recorrido se calcula con la siguiente ecuación cinemática:

t = \frac{x}{v} (1)

Donde:

x - Distancia recorrida, en metros.

v - Rapidez del cocodrilo, en metros por segundo.

t - Tiempo, en segundos.

Si x = 25\,m y v = 1.2\,\frac{m}{s}, entonces el tiempo empleado por el cocodrilo es:

t = \frac{25\,m}{1.2\,\frac{m}{s} }

t = 20.833\,s

El cocodrilo se arrastró durante 20.833 segundos.

<em />

8 0
3 years ago
What do these two changes have in common?
Varvara68 [4.7K]

ok fine ill leave

Explanation:

5 0
2 years ago
Question 21
Mumz [18]
There are 2 moles of O stones present in 88 grams of CO2. Why? Well, we can find the amount of moles present in 88 grams of CO2 by dividing the mass by the molar mass. The mass of CO2 comes out to be 88 grams. The molar mass of CO2 comes out to be 44 grams. Because 88 is the mass of CO2 and 44 is the molar mass of CO2, we can divide 88 by 44 to identify that there are 2.0 moles of O atoms present in 88 grams of CO2.

Your final answer: There are 2.0 moles of O atoms present in 88 grams of CO2. Your final answer to this question is D, or 2.0 moles. If you need to better understand, let me know and I will gladly assist you.
5 0
2 years ago
Other questions:
  • 5) Which of these are intensive properties?
    14·1 answer
  • Why would a high speed collision cause more damage than a low speed collision?
    5·2 answers
  • Warm air _________, while cool air ____________.
    6·2 answers
  • Draw all possible structures for a compound with molecular formula C4H8O that exhibits a broad signal between 3200 and 3600 cm-1
    10·1 answer
  • A reaction that combines simpler reactants to form a new compound is called a
    10·1 answer
  • In a longitudinal wave, the _________ is the distance from one compression to the next compression or from one rarefaction to th
    10·1 answer
  • Please everyone do this and send me​
    12·1 answer
  • Increase the pressure on the system
    5·1 answer
  • Could to atoms of helium form a covalent bond?
    12·1 answer
  • Which would be the best material to use for making tea kettles?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!