A fossil contains 1/16 of the carbon -14 it began with. How old is the fossil?

A chemical reaction is a process by which atoms or groups of atoms in substances

dsp73

Answer:

A). dissolved into other substances

Explanation:

Process of elimination-

B) loss of protons-mechanical reaction

D) reorganized into different substances-physical reaction

4 0

2 years ago

Two test tubes are filled with a solution of bromthymol blue. A student exhales through a straw into each tube, and the bromthym

AlekseyPX

Explanation:

The plant is utilizing CO2 in photosynthesis

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Bromothymol blue, an acid indicator, goes from blue to yellow when reacting with acid. The color change in sunlight confirmed the use of CO2, dissolved within the solution as carbonic acid- its removal from the solution makes the more basic, and the solution goes from yellow (acidic) to blue (alkaline).

CO2 + H2O ↔ H2CO3

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.

Occuring in several complex steps, photosynthesis is a rate limited reaction, it depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain.
This occurs in the thykaloids, where pigment molecules like chlorophyll reside.
Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor occurs in both plants and animals.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

5 0

3 years ago

According to the envelope in Model 1, who is supposed to receive the letter?

QveST [7]

Jane doe because that is who the envelope is a dressed to

5 0

3 years ago

Your ability to process language in the left hemisphere of the brain and handle spatial thinking in the right hemisphere of the

DerKrebs [107]

According to the research, the correct option is lateralization. Your ability to process language in the left hemisphere of the brain and spatial thinking in the right hemisphere of the brain is called lateralization.

<h3>What is lateralization?</h3>

It refers to the functional differentiation that exists in the human brain, that is, it is made up of the functions and processes that are specific to each hemisphere and, therefore, the capacities that are carried out predominantly through one hemisphere.

The hemispheres are interconnected through bundles of neuronal fibers that belong to the corpus callosum and, despite this, the left hemisphere performs a set of different functions with respect to the right and vice versa.

Therefore, we can conclude that according to the research, the correct option is lateralization. Your ability to process language in the left hemisphere of the brain and spatial thinking in the right hemisphere of the brain is called lateralization.

Learn more about lateralization here: brainly.com/question/14313397

#SPJ1

5 0

1 year ago

Describe how stem cells have the potential to treat sick people. ( in scientific words please).

Assoli18 [71]

Stem cells are undifferentiated cells that have the ability to differentiate into any kind of body cells like muscle, skin, heart etc.

There is alot of research being conducted on the stem cells because they have the potential to treat almost any kind of disease. This is because they are embryonic cells that can be specialized into a person's any type of body cells. When stem cells are specialized into the any kind of body's cells like cardiac, muscular, they can repair all the damaged cells and replace them with the new and healthy cells.

Currently, they are being used to repair:

Nerve cells that are damaged due to some injuries like stroke, spinal injury, Parkinson’s disease, Alzheimer's and other such neurological disorders.
They can repair insulin producing cells so millions of people can be treated against diabetes and other problems that arise due to diabetes like kidney and cardiac issues.
They have the ability to repair almost any kind of injured tissue.
They can provide clues of muscle re-pairment like how organs are repaired after an injury, trauma or problem like heart attack.
Stems cells can be used to make new drugs and minimize the side effect of the drugs.
This is a fascinating area of science that has the potential to repair any damaged organ of human without getting it replaced by a new one.

Hope it help!

3 0

3 years ago