When a nonmetal bonds with another nonmetal, they typically form a covalent compound. This is because nonmetals have similar tendencies to attract electrons and, hence, they form a mutual sharing of electrons which constitutes a covalent bond.
When a nonmetal bonds with another nonmetal, they form a covalent compound. Covalent compounds are formed when two atoms share electrons, rather than transferring them as in ionic bonding. Nonmetals typically have similar electronegativities, meaning they both have similar tendencies to attract electrons. As a result, neither atom completely transfers its electron(s) to the other, they rather settle on a compromise and decide to share the electron(s). This sharing of electrons is the basis of a covalent bond. An example is the covalent bond of two oxygen atoms to form an O2 molecule.
#SPJ6
calcium (Ca)
chromium (Cr)
germanium (Ge)
To counter the removal of A the equilibrium change by shifting toward the left
explanation
If the reaction is at equilibrium and we alter the condition a new equilibrium state is created
The removal of A led to the shift of equilibrium toward the left since it led to less molecules in reactant side which favor the backward reaction.( equilibrium shift to the left)
For Plato users :
The equilibrium SHIFTS LEFT. Simultaneously, there’s an increase in the REVERSE reaction.
–5.6 mc031-2.jpg 10–3 L
5.6 mc031-3.jpg 10–3 L
5.6 mc031-4.jpg 103 L
The correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.
Scientific notation or standard form is method of representing large numbers in more condensed form using power of ten.
The correct way to represent 5600 L using scientific notation is written as follows;
5600 L = 5.6 x 10³ L
Thus, the correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.
Learn more about scientific notation here:brainly.com/question/325572
(a) vacuole (c) chloroplast
(b) nucleus (d) cell membrane
Explanation:
The student most likely observed both (A) Vacuole and (C) Chloroplast that led him to the conclusion, that the cell is a plan cell.
Reason :
In a plant cell, Vacuole occupies 70% to 90% of the total volume of the cell, making it easier to identify.
Chloroplast contains photosynthetic pigment called chlorophyll (green in colour), which is only found in plant cell.
The presence of chloroplasts, containing green pigment chlorophyll for photosynthesis, in the cell likely led the student to conclude it was a plant cell.
The student likely made his conclusion based on observing the presence of chloroplasts in the cell. Chloroplasts contain a green pigment called chlorophyll, which enables plants to undergo photosynthesis and is not found in animal cells. The others listed (vacuoles, cell membrane, and nucleus) are also present in animal cells and therefore would not specifically indicate a plant cell.
#SPJ3
Answer:
The correct answer is Option (2)- Burning up of fossil fuels
Explanation:
Fossils are the remnants of the ancient plants and animals that were buried millions of years ago. Those fuels that are made up of these fossilized matters are commonly termed as fossil fuel. For example, Petroleum, Coal and natural gas. These are the major source of energy.
These fossil fuels are limited in amount and are non-renewable sources of energy. These are exploited rapidly by human beings. This burning up of fossil fuels leads to the production of a large amount of Carbon dioxide (CO₂) gas that causes a significant impact on the atmosphere. The increase in the CO₂ content also leads to an increase in the global temperature of the earth.
In the last 100 years, the CO₂ level in the atmosphere has immensely increased.
Hence, the correct answer is option (2).