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
Sophie [7]
4 years ago
8

Which are compounds, which are elements and which are mixtures?

Chemistry
1 answer:
Kamila [148]4 years ago
5 0

Answer:

first first row: element

second first row :compound

You might be interested in
Caffeine is one of many naturally occurring chemicals in tea plants that plays two important roles: protecting the plant from pr
AnnyKZ [126]

Caffeine is more soluble in dichloromethane and the both are separated by evaporating the solvent.

Caffeine is an organic plant material which is more soluble in non-polar solvents than in polar solvents. As such, caffeine is more soluble in dichloromethane than in pure water.

In order to carry out a liquid-liquid exaction of dichloromethane from a commercial teabag, the dichloromethane is mixed with water. The caffeine is found to be more soluble in the organic dichloromethane layer than in water.

The two solvents can now be separated using a separating funnel and the solution is evaporated to obtain the caffeine.

Learn more: brainly.com/question/967776

6 0
3 years ago
How many optical isomers this molecule have?<br> a) 12<br> b)27<br> c)16<br> d)4
skelet666 [1.2K]

Answer:

letter D

Explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
What type of change forms a new<br> substance?
marusya05 [52]

Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.

6 0
3 years ago
In a certain chemical process, water reacts with a compound, and the water is converted into another compound during the reactio
gtnhenbr [62]

Answer:

hydration reaction

Explanation:

The type of reaction would be hydration reaction.

<u>Hydration reaction generally involves a chemical reaction of water with another reactant and in which the water ends up being converted to another product entirely. </u>

A good example of hydration reaction is the reaction between alkene and water leading to the production of alcohol.

CH_2=CH_2(g)   +   H_2O(g)  ⇄  CH_3CH_2OH(g)

8 0
3 years ago
Read 2 more answers
Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb
I am Lyosha [343]

Answer:

i cant understand what you wrote

Explanation:

it's a blank screen

4 0
3 years ago
Other questions:
  • How many moles of oxygen are in 6.02 x 10 to the 24th power
    5·1 answer
  • Which one A, B, C,D,E,F
    15·1 answer
  • A sample of gas at a pressure of 121.59 kPa, a volume of 31 L, and a temperature of 360 K contains how many moles of gas? A. 0.7
    8·1 answer
  • True or False? When temperature rises, the number of people who go to the beach increases. Temperature is the independent variab
    10·2 answers
  • Explaining how is it day time in the UAE and night time in the USA
    13·1 answer
  • An object has a mass of 72 kg. What is its weight?
    11·1 answer
  • ¿Las cargas eléctricas forman parte de los átomos?
    15·1 answer
  • What is the effect of molecular weight on melting and boiling point of alkanes??​
    8·1 answer
  • Arrange the following elements in order from lowest to highest first ionization energy : AI , Ar, Cs, Na .
    14·2 answers
  • Most of Earth's atmosphere is made up of nitrogen gas. Nitrogen can also
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!