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Taya2010 [7]
3 years ago
12

How many atoms of oxygen make up one molecule of oxygen gas

Biology
2 answers:
postnew [5]3 years ago
8 0

Answer:

2

Explanation:

Inessa [10]3 years ago
3 0

Answer:

2

Explanation:

atmospheric oxygen is O²

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A change in ________ can often cause mass extinctions of animals that are adapted to warm, tropical waters.
gavmur [86]
The climate of the habitat
8 0
3 years ago
What evidence shows that biological molecules on earth form naturally?
Anestetic [448]

Explanation:

La siguiente entrada tiene como objetivo realizar una breve explicación sobre las moléculas biológicas  lipídos y carbohidratos, las cuales son muy diversas ya que están formadas por carbono, lo cual hace que puedan formar muchos tipos de enlaces. Esta capacidad permite que las moléculas orgánicas  adopten muchas formas complejas, como son las cadenas, las ramificaciones y los anillos.

Las moléculas biológicas son grandes polímeros que sintetizas para poder enlazarse con otras subunidades mucho mas pequeñas conocidos como monómeros. Las cadenas de subunidades estan unidas por enlaces covalentes los cuales se forman por deshidratación, estas cadenas pueden romperse por hidrólisis. La moléculas biologicas más importantes son los carbohidratos, lípidos, proteínas y ácidos nucleicos.

4 0
3 years ago
What element behaves MOST like magnesium? A) S B) Si C) Sn D) Sr
Zielflug [23.3K]
The right answer is to the question is D.Sr
6 0
4 years ago
Which type of muscle tissue is pictured?
malfutka [58]

Answer:

Smooth

Explanation:

The muscle tissue from the smooth muscles looks layered and connected. Also, I found the diagram online.

4 0
3 years ago
The minimum amount of energy needed to start a chemical reaction is known as:
nadya68 [22]

Answer:

The correct option is B. Activation energy

Explanation:

The activation energy is usually used to designate the minimum energy necessary for a given chemical reaction to occur, that is, the basic requirement for the reaction to proceed.

For a reaction to occur between two molecules, they must collide in the correct orientation and have a minimum amount of energy. As the molecules approach, their electron clouds are rejected. This requires energy (activation energy) and comes from the heat of the system, that, is, from translational, vibrational energy, etc of each molecule. If the energy is sufficient, the repulsion is overcome and the molecules are close enough for a rearrangement of the bonds of the molecules.

The concept of Activation energy was introduced by Arrhenius in 1889. Arrhenius suggested that molecules must prossess a minimum amount of energy to react. That energy comes from the kinetic energy of the clliding molecules. Kinetic energy serves to cause reactions, but if the molecules move very slowly, the molecules will only bounce when they collide with other molecules and the reaction does not happen. In order for the molecules to react, they must have a total kinetic energy that is equal to or greater than a certain minimum value of energy called activation energy.

6 0
3 years ago
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