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
motikmotik
3 years ago
15

3. Write a hypothesis that explains your inference about the acidity of the paper. How might you test your hypothesis by extendi

ng the experiment? What would you expect to see in this new experiment? (5 points) .​
Chemistry
1 answer:
vredina [299]3 years ago
8 0

Answer:

google

Explanation:

go to the plus thing on your screen and search it. (please dont attack me im doing a dare  >:( )

You might be interested in
A limestone plateau has no surface water. All the water is pulled underground through cracks and crevices in the surface. What m
BaLLatris [955]

Answer:

Chemical weathering due to water

Explanation:

Since all the water is pulled underground through cracks and crevices on the surface, it makes the limestone plateau have no surface water. Meanig the most likely cause for having the underground of the plateau to change over time is the chemical weathering due to water.

7 0
4 years ago
The standard cell potential for a reaction in an electrolytic cell is always:_____
GuDViN [60]

Answer:

The correct answer is <em>b. Negative</em>

Explanation:

An electrolytic cell is based on a reduction- oxidation reaction which is non spontaneous. That means that the standard cell potencial (Eº) is negative. For this reason, an electrical potential must be applied in order to force the reaction. Conversely, a galvanic cell is based on a spontaneous redox reaction, so the galvanic cell produces electrical energy.

7 0
3 years ago
. ¿Qué cantidad de HNO3 concentrado y de solvente se utilizará en la preparación de 500 mLal 5% (v/v)?
Viefleur [7K]

Answer:

464.29mL de solvente y 35.71mL de ácido nítrico concentrado deben agregarse.

Explanation:

El ácido nítrico concentrado viene al 70% v/v por temas de estabilidad. El volumen de ácido nítrico que se debe agregar si se quieren hace 500mL al 5% de HNO3 es:

500mL * (5mL / 100mL) = 25mL de ácido nítrico se deben agregar.

Como el ácido nítrico está al 70%:

25mL ácido nítrico * (100mL / 70mL ácido nítrico) = 35.71mL de ácido nítrico concentrado deben agregarse.

Y el volumen de solvente debe ser:

500mL - 35.71mL = 464.29mL

6 0
3 years ago
_AI + _HCI —&gt; _H2 + _AlCl3
SOVA2 [1]

Hey there!

Al + HCl → H₂ + AlCl₃

Balance Cl.

1 on the left, 3 on the right. Add a coefficient of 3 in front of HCl.

Al + 3HCl → H₂ + AlCl₃

Balance H.

3 on the left, 2 on the right. We have to start by multiplying everything else by 2.

2Al + 3HCl → 2H₂ + 2AlCl₃

Now we have 2 on the right and 4 on the left. Change the coefficient in front of HCl from 3 to 4.

2Al + 4HCl → 2H₂ + 2AlCl₃

Now, for Cl, we have 4 on the left and 6 on the right. Change the coefficient in front of HCl again from 4 to 6.

2Al + 6HCl → 2H₂ + 2AlCl₃

Now, our H is unbalanced again. 6 on the left, 4 on the right. Change the coefficient in front of H₂ from 2 to 3.

2Al + 6HCl → 3H₂ + 2AlCl₃  

Balance Al.

2 on the left, 2 on the right. Already balanced.

Here is our final balanced equation:

2Al + 6HCl → 3H₂ + 2AlCl₃  

Hope this helps!

7 0
3 years ago
Which sentence correctly explains the process and conditions needed for sleet to form?
laiz [17]

Answer:Sleet only happens under very specific weather conditions. There must be a layer of air near the ground whose temperature is below freezing, where water turns to ice. Above this layer of freezing air must be a layer of warmer air. As snow falls through the warm air, it melts or partially melts into raindrops.

Explanation:

3 0
3 years ago
Other questions:
  • Which statement is true for a cooling curve?
    9·2 answers
  • The most negative electron affinity is most likely associated with which type of atoms
    13·1 answer
  • How much energy in joules will be required to raise the temperature of 50.0 g of water from 20 degrees C to 60 degree C
    12·1 answer
  • If you could please summarise the information in the two screenshots I'll give you brainiest
    10·1 answer
  • Examples of quantitative of quantitative data
    6·2 answers
  • 1 Srcl (aq) + 1 H,60,(aq) → 2 HCl(aq) + 1 Srso (s)
    9·1 answer
  • ? + ? = zink chloride + water​
    13·1 answer
  • When phosphorus forms an ion, it will have the same electron configuration as ?
    8·1 answer
  • Please help ASAP! Please and thank you have a great and blessed day!,
    9·2 answers
  • Why is the top ruler more reliable in measuring length than the bottom ruler?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!