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
Irina18 [472]
2 years ago
5

Chemistry lab question. The lab is about the separation of mixtures using evaporation and filtration.

Chemistry
1 answer:
dezoksy [38]2 years ago
7 0

For the first question, salt is soluble while sand is insoluble or not dissolvable in water. The salt should have vanished or melted, but the sand stayed noticeable or visible, making a dark brown solution probably with some sand particles caught on the walls of the container when the boiling water was put in to the mixture of salt and sand. The solubility of a chemical can be disturbed by temperature, and in the case of salt in water, the hot temperature of the boiling water enhanced the salt's capability to melt in it.

For the second question, the melted or dissolved salt should have easily made its way through the filter paper and into the second container, while the undissolved and muddy sand particles is caught on the filter paper.

You might be interested in
Does a large ball of aluminum foil have the same properties as a small ball?
dsp73

Answer:

yes

Explanation:

same properties different size

can i have brainliest pls

5 0
3 years ago
2. An element is all the way through,​
elena55 [62]
?? Is that the whole question?
6 0
2 years ago
Please someone help me out thank you I’ll give brainlist :))
Tom [10]

Answer:

Ionization energy increases going left to right across a period and increases from bottom to top in a group

Electron affinity increases when going up a group

If we are excluding noble gases (aka group 8/18), Chlorine is the element that has the greatest electron affinity. This is because Fluorine's 2p orbital is limited and packed which doesn't quite allow sharing of the orbital with extra electrons easily, while Chlorine has a 3p orbital allowing more space for electrons, where the orbital electrons would be inclined to do so.

Helium is the element with the greatest ionization energy since it's at the top and energy (from Oganesson to Helium) increases when going across a period (from Hydrogen to Helium).

4 0
2 years ago
What fact shows that baking a chocolate chip cookie is a chemical reaction?
Alina [70]
The final product cannot be converted back to the original ingredients. This is why baking a chocolate chip cookie is a chemical reaction.
4 0
3 years ago
2Al + 6HCl → 2AlCl3 + 3H2 If 3.0 grams of H2 were produced, how many grams of Al reacted? (Molar mass of Al = 27 g/mol, molar ma
Monica [59]
Hope it cleared your doubt.

8 0
2 years ago
Other questions:
  • Which of these statements accurately describes polymers?
    8·2 answers
  • Don’t understand it. Please help
    15·2 answers
  • A solution is prepared by dissolving 7.14 g KClO in 318 g of water. What is the molality of this solution? You do not need to sh
    6·1 answer
  • What 3 sub types of covergent plate boundaries?
    13·1 answer
  • Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural
    15·1 answer
  • As the pendulum moves from point 2 to point 3, what happens to its mechanical energy?potential energy is converted to kinetic en
    13·1 answer
  • Calculate the ph of a buffer that is 0.145 m hc2h3o2 and 0.202 m kc2h3o2. The ka for hc2h3o2 is 1.8 × 10-5.
    13·1 answer
  • A researcher is trying to culture mouse embryonic stem cells, and is providing them with glucose (sugar) as a food source. In or
    13·1 answer
  • What is the freezing point of glucose?
    11·1 answer
  • How many moles are in a 62.5-g sample of potassium nitrate (KNO3)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!