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
Georgia [21]
3 years ago
11

Phase changes are chemical changes. True False ...?

Chemistry
2 answers:
tekilochka [14]3 years ago
8 0
False
Phase changes are physical changes and can be easily reverted by adjusting pressure or temperature. 
marusya05 [52]3 years ago
5 0
Hi , the answer is false.
<span />
You might be interested in
Please help I don’t know if my answer is right!!
Temka [501]

Answer:

neutralization reaction! Aka: option C!

HOPE THIS HELPS! :)

Explanation:

8 0
3 years ago
The solubility KI is 50 g in 100 g of H2O at 20 °C. if 110 grams of ki are added to 200 grams of H2O ________
Salsk061 [2.6K]

The solubility KI is 50 g in 100 g of H₂O at 20 °C. if 110 grams of ki are added to 200 grams of H₂O <u>the </u><u>solution </u><u>will be </u><u>saturated</u><u>.</u>

<h3>What is solubility?</h3>

Solubility is a condition where the solute is fully dissolved in the solvent. When fully mixed with the solvent.

Given that 50 g of KI is added to 100 g of water at 20 °C it means 100 g of water can dissolve a maximum of 50 g of  KCl.

1 g of water will dissolve an quantity of 0.5 g of  KCl.

To assay for 200 g of water: 200 g of water can disintegrate a maximum of (0.5) x 200 g of  KCl.

The maximum amount of KCl that will dissolve is 100 g

Actualised amount dissolved = 110 g

when Amount dissolved > Maximum solubility limit

110 g > 100 g

Thus,  the solution is saturated.

To learn more about solubility, refer to the below link:

brainly.com/question/8591226

#SPJ4

6 0
1 year ago
Carla is using a fertilizer that contains nitric acid.How can nitric acid be classified
Sergeu [11.5K]

Answer:

nitric acid can be classified as a strong acid

hope this helps have a nice day

Explanation:

6 0
3 years ago
Read 2 more answers
A chemist has a 3.25-mole sample of potassium (K) to use in an experiment. What is the mass of this sample?
s344n2d4d5 [400]
Hi!
• For this you want to convert moles to grams
• To do this you would simply multiple your moles times the atomic mass of potassium
3.25 x 39.098= 127.0685
• So your answer for this should be about 127.07 depending on how you need to round!
5 0
2 years ago
A compound has the empirical formula CH and a molar mass of 78.11 g/mol . Find its molecular formula.
Reil [10]

Answer:

Molecular Formula = C6H6

Explanation:

Empirical Formular = CH

Molar Mass = 78.11

Molecular Formular = ?

The Formular relating these parameters is given as;

(Empirical Formula)n = Molecular Formular

where n = Number of moles

CH = 12.0107 + 1.00784 = 13.01854

(13.01854)n = 78.11

n = 78.11 / 13.01854

n = 5.9999 ≈ 6

Molecular Formula = C6H6

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following has the largest atomic radius: calcium, beryllium, barium, and strontium
    15·1 answer
  • Where light is hitting an object
    8·1 answer
  • Predict the sign for AS for each of the following systems: Water freezing Water evaporating Crystalline urea dissolving Assembly
    7·1 answer
  • How many grams of O2 are required to produce 5 mol CO2
    6·1 answer
  • What does "Здражейте, какво пражите?" mean?
    6·1 answer
  • What Type of chemical reaction is:<br> BaCl2 + 2 AgNO3 --&gt; 2 AgCl + Ba(NO3)2
    12·1 answer
  • Which law states that the volume of a given amount of gas is proportional to temperature when pressure and number of moles remai
    10·1 answer
  • A reaction starts with 20.0 g of lithium hydroxide (LiOH) and actually produces 31.0 g of lithium chloride (LiCl), what is the p
    11·2 answers
  • From the chair conformation, rotate about the carbon-carbon bonds of the ring to form a boat conformation. In the boat conformat
    10·1 answer
  • Study the diagram, which represents the general equation for photosynthesis.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!