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
Readme [11.4K]
3 years ago
5

When 2.5 g of blue copper(ii) sulfate crystals were heated, 1.6 g of a white solid were left in tube A

Chemistry
1 answer:
Zinaida [17]3 years ago
8 0

Answer:

b po answerpa brainlest

You might be interested in
If a pharmacist dissolves 1.2 grams of a medicinal agent in 60 ml of a cough syrup having a specific gravity of 1.20, what is th
guapka [62]

Mass of medicinal agent taken = 1.2 g

the volume is 60 mL

Specific gravity = 1.20

So the mass of solution = specific gravity X volume = 1.20 * 60 = 72g

Now if we have increased the volume by 0.2 so the new volume = 60.2

New mass = 72 + 1.2 = 73.2  

Specific gravity = mass /  volume = 73.2 / 60.2 = 1.22 g/mL

7 0
3 years ago
Why does water with salt in it freeze much more slower than water without it ? Explain
serg [7]
When you add salt to water, you lower to freezing point of the substance.

So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered. 

In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.
4 0
3 years ago
Read 2 more answers
Which of the answer choices correctly identifies a scenario that displays evidence a chemical reaction is occurring?
tigry1 [53]
Sugar burns and turns black. A completely new substance was formed, which is the main pointer for it being a chemical reaction. More evidence would be change of color, odor, and the fact that flammability is a chemical property so setting something on fire would be a chemical change.
5 0
3 years ago
Read 2 more answers
Aside from soap, what other agents can homogenize immiscible solutions? What is the difference between fats and oils? Why should
dolphi86 [110]

Answer:

  •   <u>Agents that can homogenize immiscible solutions are</u>  milk , lotion , glue , paint ,alcohol etc.
  •    The primary difference between fats and oils is that, whereas oils are generally derived from plants, fats are usually derived from animals.
  • Eating too much of the wrong kinds of fats will increase unhealthy LDL cholesterol of decrease healthy HDL cholesterol, such as saturated and trans fats.
  • Your risk of high blood pressure, arterial hardening (atherosclerosis), heart attack and stroke may be enhanced by the imbalance of fats and oils.  
  • <u>Among the doctor and the patient , the patient's health is deteriorating.   </u>

<u>To minimize the intake of fats and oils by suggesting them simple ways-</u>

  • Eat more vegetables and fruits.
  • Stop cream and cheese sauces, or use low-fat milk and cheese to make meals.  
  • Instead of butter or margarine, try cooking with herbs , spices, lemon juice, etc.
  • Try cooking with herbs, spices, lemon juice, etc., instead of butter or margarine.
  • Beware of confectionary foods, such as chocolate or pastry dishes and crisps. These are very high in fat instead consider swapping for a more balanced snack or restricting portion sizes.

                      

<u>Explanation:</u>  <u>FATS -</u>: Fats are usually derived from animals. Fats contain a larger proportion of fatty acids that are saturated. Fats at room temperature are solid.

<u>  OILS -</u> Oils at room temperature are liquid.  From plants, oils are extracted.   A greater proportion of unsaturated fatty acids are found in oils.

                         

5 0
3 years ago
What is the name of this formula MnN?
olga_2 [115]
Manganese(III) Nitride
3 0
3 years ago
Other questions:
  • The first stage of a(n) _____________________ is when clouds form; this is the cumulus stage.​
    11·1 answer
  • PLEASE HELPPPP How would life on earth be different if it axis were not tilted which respect to its orbit
    9·2 answers
  • 38.25 grams of silicon is combined with 14.33 grams of nitrogen gas. How many grams of silicon nitride can be formed if nitrogen
    10·1 answer
  • What is the term for the amount of salts in water? Evaporation
    13·2 answers
  • A phase diagram assumes ______ is kept constant. temperature volume pressure density
    8·2 answers
  • Chemical reactions involve the Atoms ______ , while nuclear reactions involve the atoms_______.
    15·1 answer
  • Which two types of consumers are known as “nature’s clean-up crew”? Why are they important?
    9·2 answers
  • How are elements in the same group similar
    6·2 answers
  • The pH of an acidic solution is 5.59. What is [H+]?
    8·1 answer
  • What is the difference between weather and climate? Why is it so hot along the equator? Why are some areas of the ocean warmer t
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!