Answer:
The answer is B.
Explanation:
The logical explanation is that fossils from animals are changing over time caused by enviroment change ,natural disaters,astronmical events,and so on.These organisms need to adapt over time and so there features change.For Example the dragon fly used to be as big as a bus now that it has adapted and changed from when the cretaceous period it is as small as your index finger.
Molar mass O₂ = 16 x 2 = 32.0 g/mol
1 mol O₂--------------------------- 32.0 g
30.5 moles O₂-------------------- ? ( mass O₂)
mass O₂ = ( 30.5 ) x 32.0 / 1
mass O₂ = 976.0 / 1
= 976.0 grams of O₂
hope this helps!
Because im pretty sure the molecules would just fall apart like salt which is ionic
Answer:
The Rutherford atomic model stated that an atom is mostly an empty space that consist of nucleus and electrons, where nucleus is positively charged and electrons are negatively charged.
<em>But Rutherford atomic model missed to add the quantum mechanics or energy level for electrons. Rutherford was unable to make understand the planetary movement of electrons around nucleus and later Bohr's model explained it.</em>
Hence, Rutherford's model of the atom missed to explain the planetary movement of electrons around nucleus.
Answer:
A la izquierda el catión y a la derecha el anión.
Explanation:
¡Hola!
En este caso, y basado en las normas IUPAC para la escritura de las fórmulas moleculares, es necesario primero escribir el catión a la izquerda, seguido del anión a la derecha, tal y como se muestra en los siguientes ejemplos, recordando que el catión es el ion cargado positivamente y el anión, negativamente:
Los cuales son cloruro de potasio y sulfato de plata respectivamente. También es necesario tener en cuenta que los metales tienden a ser cationes por su capacidad de perder electrones, mientras que los no metales a ganarlos y por ende resultar como aniones.
¡Un gusto ayudarte!