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
kirill [66]
3 years ago
13

23.9 km + 15 km

Chemistry
1 answer:
Ugo [173]3 years ago
4 0

Answer:

the original answer is 38.9km (3sf)

You might be interested in
Draw the structure of 2 methyl,but-3-ene
Maslowich

Answer:

Please find the structure attached as an image

Explanation:

Based on the characteristics ending name (-ene) of the organic compound above, it belongs to the ALKENE GROUP. Alkenes are characterized by the possession of a carbon to carbon double bond (C=C) in their structure.

- But-3-ene tells us that the organic compound has four straight carbon atoms with the C=C (double bond) located on the THIRD carbon depending on if we count from right to left or vice versa.

- 2 methyl indicates that the methyl group (-CH3) is located as an attachment on the second carbon (carbon 2).

N.B: In the structure attached below, the counting is from the left to right (→).

5 0
3 years ago
What substance is reduced in the reaction 2Fe 2+ + CI2 = 2Fe 3+ + 2CI- ?
atroni [7]

Answer:

$Cl_{2}$ is reduced in the reaction

Explanation:

The given reaction is

$2Fe^{2+}+Cl_{2} \to 2Fe^{3+}+2Cl^{-}$

The oxidation number of $Fe$ is changed from $+2\, \to \, +3$

$Fe^{2+} \to Fe^{3+}+e^{-}$

And The oxidation number of $Cl$ is changed from $0\, \to \, -1$

$Cl_{2}^{0} + 2e^{-} \to 2Cl^{-}$

Hence, $Fe^{2+}$ is oxidized and $Cl_{2}$ is reduced

5 0
4 years ago
Which direction are sediments deposited?
shutvik [7]
C. horizontal
please rank brainliest if possible :)
8 0
3 years ago
3. Which change of state involves adding thermal energy to a substance!
MakcuM [25]

Answer:

A) Melting

Explanation:

The three changes of phase described in this problem are:

  • Melting: melting occurs when a substance in solid state turns into liquid state. Since molecules in liquid state have more energy than molecules in solid state (because in liquids, molecules can slide past each other, while in solids they can't move, but only vibrate), thermal energy must be added in order to melt a substance
  • Freezing: freezing occurs when a liquid substance turns into solid state (the opposite of melting). Since molecules in liquid state have more energy than molecules in solid state, thermal energy must be removed from the substance in order to cause freezing
  • Condensation: condensation occurs when a gaseous substance turns into liquid state. Since molecules in gaseous state have more energy than molecules in liquid state, thermal energy must be removed from the substance in order to cause condensation

So the correct option is

A) melting

5 0
3 years ago
What effect does supercritical mass have on a nuclear reaction?
Ksju [112]
Supercritical mass results to an increase in the rate of fission. There is a chain reaction that will occur. Nuclear fission or explosion used in atomic bombs relies on supercritical mass. An atom splits into two, with each splitting into two pairs and so on, releasing energy in each step.
3 0
4 years ago
Read 2 more answers
Other questions:
  • How many grams of sulfur are needed to react completely with 246 g of mercury to form hgs?
    7·2 answers
  • The radioactive atom 61/27 co emits a beta particle. write an equation showing the decay
    9·1 answer
  • How are exothermic and endothermic reactions linked in the process of refining metal ore?
    11·1 answer
  • PLEASE HELP!!!!!!!! giving brainlist
    9·2 answers
  • Which causes genetic variations and can result in different alleles? O predation rate O random mutations O competition o environ
    9·2 answers
  • Which of the following single replacement reactions will take place?
    8·1 answer
  • Which three statements about gravity and the formation of the solar system
    8·2 answers
  • Please Help, I did it but I want to make sure, 100 points
    7·2 answers
  • Which of the following is NOT a feature found on the Moon?
    15·1 answer
  • Oxidation unit test
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!