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
mariarad [96]
3 years ago
7

Which term names the longest geologic time frame?

Chemistry
1 answer:
Grace [21]3 years ago
4 0

Answer:

Precambrian

Explanation:

You might be interested in
If you were working in the lab, what would be the main reason for collecting and treating the waste from this titration experime
Neporo4naja [7]
Medical care or know how to improve it
6 0
3 years ago
The reduction of 3-pentanone with hydrogen in the presence of a nickel catalyst will yield The reduction of 3-pentanone with hyd
Zinaida [17]

Answer:

d. diethyl alcohol

Explanation:

When ketones undergo reduction, they produce 2° alcohol, and 3-pentanone will produce dimethl alcohol as the secondary (2°) alcohol

5 0
3 years ago
Consider the exothermic reaction
alisha [4.7K]

Answer:

The answer to your question is -2855 J

Explanation:

Reaction

                     2C₂H₆  +  7O₂   ⇒   4CO₂  +  6H₂O

Formula

Heat of reaction = ΔHrxn = ΣΔHrxn products - ΣΔHrxn reactants

Substitution

ΔHrxn = { 4(-393.5) + 6(-241.8)} - {2(-84.7) + 7(0)}

ΔHrxn = {-1574 -1450.8} - {-169.4}

ΔHrxn = -3024.8 + 169.4

ΔHrxn = -2855.4 J

4 0
3 years ago
Which element on the periodic table has chemical properties that are most similar to carbon?
oee [108]
Elements in the same column of the periodic table exhibit similar properties (periodicity). Carbon, in Group XIV (14), and elements below it in the same column react in similar fashion. The most similar element to carbon is silicon (Si).
8 0
3 years ago
How do ionic bonds differ from covalent bonds? I NEED HELP QUICK PLSSS!!!!!
Brums [2.3K]

Answer:

.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is an substance
    11·2 answers
  • What properties would you expect to be different for the two enantiomers of 2-pentanol?
    14·1 answer
  • All helium atoms have 2 protons. what is the atomic number of helium?
    14·1 answer
  • Brainliest! a. Write a short historical account of the discovery of the Avogadro’s number.
    5·1 answer
  • Caffeine has the molecular formula, C8H10N4O2. What is the percent composition of caffeine?
    11·1 answer
  • How can a chemical reaction be sped up?
    9·2 answers
  • 1.Si dos átomos tienen el mismo "Z" pero diferente "A" se trata de : a) Nucleones b) Isótopos c) Mesones
    14·1 answer
  • What is the molar mass of Fe(NO3)2?
    12·1 answer
  • Dalton's Atomic Model
    5·1 answer
  • What is respiration explain in own words please
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!