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ivanzaharov [21]
3 years ago
11

What are the two main categories of contaminants in water

Biology
2 answers:
wlad13 [49]3 years ago
7 0

Answer:

hydrogen and oxygen

Explanation:

Because his form is h2o

natima [27]3 years ago
5 0

Answer:

INORGANIC MINERALS, this group of contaminants includes the minerals and toxic metals

RADIOACTIVE MINERALS, this group is really a subset of the first group and can include uranium, plutonium and radium

ORGANIC CONTAMINANTS, organic contaminants and wastes are compounds primarily composed of carbon, hydrogen, and potentially other elements. Gas or liquid-phase organic contaminants may include volatile organic compounds in the form of solvents, chemical precursors and intermediates, petroleum compounds.

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DaniilM [7]

Answer:

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<em><u /></em>

Explanation: Hope it helps :)

6 0
3 years ago
How are energy inputs and outputs related to chemical reactions
GREYUIT [131]

The large number of areas covered by the chemical energetics can be explained by the different forms in which chemical energy can be released: heat and combustion work, electrical energy in electrochemistry, radiant energy in chemiluminescent systems.

The chemical energy provided by a reaction reflects the energy balance associated with the electronic modifications suffered by the species involved.

From an energy point of view, a chemical reaction between molecules can be schematized in two stages. The first requires a supply of energy and corresponds to the rupture of the bonds of the reactant molecules with release of the atoms which constitute them.

The second releases energy and concerns the creation, by recombination of these atoms, of new bonds entering the structure of the reaction molecules.

As a general rule, the energy released in the second stage is greater than the first. We are talking about exothermic reaction. The difference between these two energies (reaction enthalpy) measures the amount of chemical energy transferred to the external environment.

It is conceivable that this quantity translates, not only the number, but also the strength of the connections involved.

6 0
3 years ago
What can be said about the leading versus the lagging strand in dna population?
Naddika [18.5K]
The leading is replicated continuously for the entire length of the chromosome, while the lagging strand is replicated in pieces.
3 0
3 years ago
When using a pocket mask, the rescuer would be positioned at the side of the victim?
Reil [10]
<span>True. Pocket mask is otherwise known as CPR mask, pocket face mask is a device used for the artificial ventilation during a cardiac arrest. When giving aid the mask should be applied to the patient's face using thumbs of both hands. Then stand on one side of the victim and give rescue breaths.</span>
5 0
3 years ago
After fertilization, the cell begins to divide by mitosis. which statement describes what occurs with the chromosomes?
MAXImum [283]
During mitosis the chromosomes are being duplicated. which means the chromosomes that are formed during the mitosis is identical to its parents. during the mitosis, the cell udergoes 4 phases. prophase, metaphase, anaphase and lastly the telophase
7 0
3 years ago
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