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
vodomira [7]
3 years ago
6

How do u study for a subject that you didn’t understand from the beginning of the year !!! (The subject is chem btw )

Chemistry
1 answer:
Alona [7]3 years ago
5 0

Answer: I would usually try my BEST to get help from yt videos. I recommend using yt that give the most kindergarten type speaking technique, this is really weird to say but it helps just incase you can be stressed out about the words being given by teachers in Chemistry. And I recommend writing down the notes when they explain as well. Hope this helps!

You might be interested in
When two clear, colourless liquids are mixed together, a yellow precipitate is formed. This is an example of a
Flura [38]

Answer:

Combining the two clear colorless liquids is a chemical change.

Explanation:

Because a different solid substance is formed. Tell students that a precipitate is an insoluble solid that forms when two solutions are combined and react chemically. Insoluble means that the solid will not dissolve.

3 0
3 years ago
What happened during the fusion reaction shown?
NARA [144]

Answer:

Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus.The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei

Explanation:

Nuclear fusion is a process in which atomic nuclei are fused together to form heavier nuclei. ... Like fission, nuclear fusion can also transmute one element into another. For example, hydrogen nuclei fuse in stars to form the element helium.

6 0
3 years ago
Read 2 more answers
The 225 g FeCl2 is about 1.8 moles.
Lyrx [107]

Answer:

4 \frac{mol}{l}

Explanation:

From the question, we have been asked to find the molarity of FeCl2 having a volume of 450 mL,

We have been provided with 225 g which is proportional to 1.8 moles.

We know that molarity of any solution should be in mol/L.

1 mole contained in 1 L means it has a molarity of 1 mol/L

Let's convert 450 mL to Litres which is,

\frac{450}{1000} litres

= 0.450 L

Thus,

1 mole is contained in 1L

x moles are contained in 0.450 L

Hence,

x mole/molarity = {1 mole x 1 L}/{0.450 L}

= 4 mol/L

Therefore 4 mol/L is the molar concentration.

5 0
1 year ago
How must atoms change so that they can join to form an ionic compound
Zina [86]
Atoms must gain or lose electrons in order to become ions if they are to form ionic bonds.
7 0
2 years ago
Which compound is an isomer of propanoic acid (CH3CH2COOH)?
arlik [135]

Answer:

D) HCOOCH2CH3

Explanation:

An isomer of a compound is defined as a chemical substances with the same formula (That is, same atoms) but in different structures.

For propanoic acid, there are <em>3 atoms of C, 6 atoms of H and 2 atoms of oxygen.</em>

A) CH2CHCOOH . Here you have 3 atoms of C but 4 atoms of H. That means this compound is not an isomer.

B) CH3CH2CH2COOH . Here, there are 4 atoms of C. Thus, is not an isomer.

C) CH3CH(OH)CH2OH. This structure has 3 atoms of C, but 8 atoms of H. Thus, is not an isomer.

D) HCOOCH2CH3. Here, there are 3 atoms of C, 6 atoms of H and 2 atoms of O. Thus, this structure <em>is an isomer of propanoic acid.</em>

5 0
2 years ago
Read 2 more answers
Other questions:
  • What properties of a substance determine how that substance will react when combined with other substances
    15·1 answer
  • How are igneous rocks formed?
    7·1 answer
  • 8.89 L of hydrogen gas is collected at 38.8 °C. Find the volume the gas will occupy at -39.9 °C if the pressure remains constant
    7·1 answer
  • Which of the following is a compound? A. Sn B. CO C. H D. Mg
    9·1 answer
  • Which of the following best describes a non metal
    12·2 answers
  • Help plz:)))I’ll mark u Brainliest
    5·1 answer
  • In 2011, the number of transplants in the United States was 26,745, and the number of donors was 14,146. What is most likely the
    15·2 answers
  • What is the specific heat capacity of silver metal if 110.00 g of the metal
    5·1 answer
  • Explain in YOUR words what factors determine which type of fossil fuel forms; coal, oil, or gas.
    13·1 answer
  • Consider the sodium borohydride reduction of camphor to isoborneol. A reaction was performed in which 1.600 g of camphor was red
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!