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
Dennis_Churaev [7]
3 years ago
5

50 pts don't dare to answer wrong or just write irrelevant.

Chemistry
1 answer:
sweet [91]3 years ago
4 0

Answer/Explanation:

Part 1 and 3: Test tube 4. The hot water and Acid added to the substance makes it much more reactive, which is the reason why the new substance is bubbling. Hot water allows the particles in a chemical reaction have enough force and more chances to go through actual reaction process. This also caused it to create the most bubbles.

Part 2 and 4: Test tube 1 had the least amount of chemical reactivity. Cold water slows down the amount of times a particle in the substance hits another. This reduces the chance of it reacting and the strength of it's reaction. Test tube 1 was also missing the citric acid. Since acids have low pH it is very reactive with other particles with substances that contain less than 8 valence electrons. Without the acid it doesn't have ad much urge to react with. The lower the pH the better reactivity.

You might be interested in
The table describes the properties of four compounds.
Pie

Answer:

Compound B and D

Explanation:

Both are good conductors of electricity.

3 0
3 years ago
Number 6<br><br><br><br> Yususueudidididifididi
Furkat [3]
The answer is predict, because it fits, and because someone can predict the outcome of something.
6 0
4 years ago
Which is the best description of Darwin’s theory of evolution?
Leokris [45]

Answer:

hr

Explanation:

cfy.uhy.lobhyu444444444,.....xres;iiiiiiiiiiiuxoppppuuusxijnnhsxdrcfvtgbyhnuj

5 0
3 years ago
Read 2 more answers
Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!
Vsevolod [243]
After the first 2 min the 20 g  are only 10g,  (1 half-life)
after other 2 more min 5g (2 half-lives)
after other 2 more min 2.5 g (3 half-lives)
after 2 more 1.25 g (4 haf lifes)



7 0
3 years ago
The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high tide and low tide occurring
topjm [15]

The rate in m/s is 5.2 * 10^-4 m/s.

<h3>What is the rate in m/s?</h3>

We know that the speed is given as the ratio of the distance covered to the time taken. In this case, we have been told that the rate at which the tide rises is 6.08 ft per hour. We would now need to convert the rate from  6.08 ft per hour to m/s.

Now;

We know that;

1 foot/hour = 8.5 * 10^-5 m/s

6.08 ft per hour = 6.08 ft per hour * 8.5 * 10^-5 m/s/1 foot/hour

= 5.2 * 10^-4 m/s

Learn more about speed:brainly.com/question/28224010

#SPJ1

3 0
2 years ago
Other questions:
  • CALCULATE: Determine the volume occupied by 0.582 mol of a gas at 15 degrees Celsius if the pressure is 81.8 KPA?
    15·1 answer
  • How to tell which chair conformation is more stable?
    15·1 answer
  • If Earth is pulling down on you, are you pulling up on Earth?
    12·2 answers
  • A scientist is studying a sample of matter. The matter has no definite shape or volume, and it can conduct an electric current.
    12·2 answers
  • An air mass usually forms in an area of _____. low pressure because it's stable low pressure because it's unstable high pressure
    10·1 answer
  • A sound wave has a frequency of 20 Hz and a wavelength of 100 m. What is speed of the wave
    8·1 answer
  • As part of an investigation, students combined substances in a beaker to observe chemical reactions. They performed two procedur
    10·2 answers
  • WILL MARK BRAINLY IF GOOD ANSWER :)
    14·1 answer
  • Which of the following correctly describes what happens to the kinetic energy of water when it changes from steam to a
    15·1 answer
  • 4. An organism that creates its own food is called
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!