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kondaur [170]
3 years ago
7

How did opponents of continental drift account for the existence of similar fossils on widely separated continents?????

Chemistry
2 answers:
Semenov [28]3 years ago
7 0

The answer is D. According to skeptics of evolution , the presence of same fossils in different continents is because the species in one continent found a land bridge (an isthmus or wider land connection between otherwise separate areas), and crossed into the other continent. An example of a land bridge is the Bering land bridge, which connected Asia and North America.

zalisa [80]3 years ago
6 0
The Answer is D. Migration across land bridges
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4 years ago
When 125.0 g of ethylene (C2H4) burns in 60.0 grams of oxygen to give carbon dioxide and water, how many grams of CO2 are formed
gizmo_the_mogwai [7]

Answer:

             66 g of CO₂

Solution:

The Balance Chemical Reaction is as follow,

                             C₂H₂  +  5/2 O₂    →    2 CO₂  +  H₂O

Or,

                             2 C₂H₂  +  5 O₂    →    4 CO₂  +  2 H₂O    -------  (1)

Step 1: Find out the limiting reagent as;

According to Equation 1,

            56.1 g (2 mole) C₂H₂ reacts with  =  160 g (5 moles) of O₂

So,

                  125 g of C₂H₂ will react with  =  X g of O₂

Solving for X,

                      X =  (125 g × 160 g) ÷ 56.1 g

                      X =  356.5 g of O₂

It means for total combustion of Ethylene we require 356.5 g of O₂, but we are only provided with 60.0 g of O₂. Therefore, O₂ is the limiting reagent and will control the yield.

Step 2: Calculate Amount of CO₂ produced as;

According to Equation 1,

              160 g (5 mole) O₂ produces  =  176 g (4 moles) of CO₂

So,

                  60.0 g of O₂ will produce  =  X g of CO₂

Solving for X,

                      X =  (60.0 g × 176 g) ÷ 160 g

                      X =  66 g of CO₂

8 0
3 years ago
Cuáles son las funciones de la política...​
Stolb23 [73]

Answer:

El ejercicio de la política permite gestionar los activos del estado nacional, también resuelve conflictos dentro de las sociedades adscritas a un estado específico lo que permite la coherencia social, las normas y leyes que determine la actividad política se vuelven obligatorias para todos los integrantes del estado

Explanation:

¿Puedes darme lo más inteligente?

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