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
oksano4ka [1.4K]
3 years ago
15

Which statement about mesosaurus fossils and continental drift is most accurate

Chemistry
1 answer:
nika2105 [10]3 years ago
3 0

Answer:

Mesosaurus fossils were found on the east coast of Africa and the West coast of South America. Scientists found by studying the fossils that they were fresh water creatures so they obviously could not swim across the ocean. Their tail did not have enough power to seim for that long of a time period.

You might be interested in
Help would be appreciated!
aivan3 [116]
Answer is A) Al4C3 + 3H2O -> CH4 + 4Al(OH)3

One the left side there are 3 carbon atoms, or moles of carbon, and on the write side there is only one. 

In order to solve these problems, count the number of atoms on each side and make sure that for each element, the number of atoms are equal. 

For example, for the last problem, we have 1 zinc atom on each sidde, two hydrogen atoms, and two chlorine atoms. 
8 0
3 years ago
How many calories are there in 32 Calories
Tju [1.3M]

Answer:

32

Explanation:

8 0
4 years ago
2. How will the equilibrium shift if the following changes are made? State if the reaction will shift
Kamila [148]

Please give me brainleist. :)

Answer:

2a. If the temperature is increased, the reaction will shift to the right in an attempt to release some of the heat. As the forward reaction loses heat while the reverse would create more heat.

2b. If the pressure is increased, it would shift to the left to counteract the increase in pressure as the left side will have fewer molecules.

2c. If Cl2 is added the reaction will shift to the left in order to remove the stress of the extra Cl2 and favor the production of more reactant.

2d. If PCl3 is removed, the reaction will shift to the right. When part of the equation is removed the reaction learns to adapt to the loss by trying to make more Pcl3 and counteract the effects of losing the PCl3.

3a. The reaction will shift to the right to produce more heat and counter the negative effects of losing the heat.

3b. It will shift to the left to get rid of the excess HCl being produced and form more reactant from the breakdown of the HCl.

3c. It would shift to the right in order to get rid of the excess form products from it.

3d. If pressure is decreased there will be no effect on the shift of the reaction because there is an even amount of moles of gas on each side.

4a. K=[N2O4(g0] / [NO2(g)]2

4b. (Below)

K=[N2O4(g)] / [NO2(g)]2

0.4 / 0.5(2)

0.4/0.25 = 1.6

Keq= 1.6

7 0
3 years ago
Phosphoric acid is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that phosphoric acid can u
Lesechka [4]

Phosphoric acid is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that phosphoric acid can undergo when it's dissolved in water is given below

Explanation:

Many acids contain two or more ionizable hydrogens. There are two in carbonic acid, H₂CO₃, and three in phosphoric acid, H ₃PO ₄. For any such multiple hydrogen acid, the first hydrogen is most easily removed, and the last hydrogen is removed with the greatest difficulty. These acids are called polyprotic (many protons) acids. The multiple acid ionization constants for each acid measure the degree of dissociation of the successive hydrogens.

Step 1

Polyprotic acid is an acid that can donate two or more H+ ion per molecule. Sulfurous acid donates two hydrogen ions in an aqueous solution.

Step 2

Dissociation of sulfurous acid in aqueous solution takes place in two steps. In the first step, one H⁺ ion is donated during dissociation forming HSO₃⁻.  

H₂SO₃₍aq₎ +H₂O₍₁₎→HSO₃⁻₍aq₎

fullscreen

Step 3

In the second step, one H+ ion is donated from HSO3- ion f...

 H₂SO₃₍aq₎ +H₂O₍₁₎→SO₃²⁻₍aq₎+H₃O⁺₍aq₎

5 0
4 years ago
Al2(SO4)3 + CaCl2 → AlCl3 + CaSO4
wolverine [178]
Al2(SO4)3 + 3CaCl2 > 2AlCl3 + 3CaSO4
3 0
3 years ago
Other questions:
  • Can someone help me with this?
    15·1 answer
  • A thermometer is placed in a beaker full of water that has been sitting on the lab table for a few hours. The beaker is placed o
    6·1 answer
  • The transfer of valence electrons produces negatively charged ions called anions. True or False?
    6·1 answer
  • 5.22*10^-3 = ?*10^-2
    10·1 answer
  • Compare the molar concentration of the crystal violet solution to that of the sodium hydroxide solution. approximately how much
    12·1 answer
  • HCOOH + MnO, CO, + Mn2+ (in acidic solution) *
    5·1 answer
  • Hello! Id like if someone could tell me this answer, thank you so much!
    13·1 answer
  • Identify type of fold in this image. The green arrow points at the fold. Question 4 options:
    11·2 answers
  • ASAP, the diagram shows the electron arrangement…
    9·1 answer
  • Hydrogen and oxygen react to produce water. Which of the following is the correctly balanced chemical equation for this reaction
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!