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
dybincka [34]
3 years ago
10

Can someone please help me with these true or false questions?! Thank you

Chemistry
1 answer:
iris [78.8K]3 years ago
5 0

Answer:

Question 4. <u>True</u> - As when water is boiled the water molecules expand and this exapansion leads more amount of salt that can be dissolved in it.

Question 5. <u>True</u> - As solubility curves show how the solubility of a solute in a given solvent changes as the temperature changes.

Question 6. <u>True</u> - As the solubility of KNO3 increases more than six times between 0 and 50 degrees C.

Question 7. <u>False</u> - As the solubility curve indicates changes in temperature for solubility of substances.

You might be interested in
Red giant stars defination​
kramer

Answer:

A red giant is a luminous giant star of low or intermediate mass in a late phase of stellar evolution. The outer atmosphere is inflated and tenuous, making the radius large and the surface temperature around 5,000 K or lower.

6 0
3 years ago
Read 2 more answers
Did democritus belive atoms retain there identity as a chemical reaction
mihalych1998 [28]
No He believed tiny particles were invisible and couldn't be changed....So No The person that believed in this was Dalton .
4 0
3 years ago
Read 2 more answers
3. 2 HCl (aq)
tekilochka [14]

Explanation:

balance the equation ...HCl,Ba(OH) and BaCl2 are aqueous

know groups of the elements H 1+ ,Cl -,Ba 2+,OH-

write complete ionic eqution and eliminate spectator ions those appearing on both sides Cl and Ba

6 0
3 years ago
Select the group that consist of non metals only *
ArbitrLikvidat [17]
The answer is B.


Explanation:
The other options contain K, L, or Mg which are all metals.
4 0
3 years ago
How is the Scientific Method used in science?
xeze [42]

Answer:

to collect measurable, empirical evidence in an experiment related to a hypothesis the results aiming to support or contradict a theory.

Explanation:

7 0
3 years ago
Other questions:
  • The following are all parts of a long bone except the __ ?
    8·1 answer
  • Which statement illustrates the difference between a chemical reaction and a nuclear reaction?
    5·2 answers
  • What has more inertia? Hammer or Feather?
    6·2 answers
  • Solve the problem for the moles of oxygen.<br> mol O2<br> DONE
    7·1 answer
  • Aluminum metal reacts with aqueous cobalt(II) nitrate to form aqueous aluminum nitrate and cobalt metal. What is the stoichiomet
    10·1 answer
  • A _____ activation energy is required to break the double bonds of unsaturated hydrocarbons.
    9·2 answers
  • How many moles is 22.4 liters of oxygen gas at standard temperature and pressure represent
    7·1 answer
  • Two students run laps around the track during gym class at school. In science class, the two students are discussing which body
    12·1 answer
  • A sample of gas has a volume of 16.0 liters at a pressure of 0.5 atmospheres. When the volume decreases to 4.0 liters at a const
    12·1 answer
  • You can tell if an object is in motion if ___.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!