Answer:
(Co,Fe)As2
Explanation:
The formula of the mineral safflorite, a compound made of cobalt, iron, and arsenic is (Co,Fe)As2. This itself is the imperical formula, it cannot be divided any further
Answer:
active because he built up antibodies due to exposure to the flu
Explanation:
Answer:
nonvascular because it lacks stems
Explanation:
Non-vascular plants, or bryophytes, are almost the most primitive forms of land vegetation. They lack the vascular tissue system (xylem and phloem) needed for transporting water and nutrients. Unlike angiosperms, non-vascular plants do not produce flowers, fruit, or seeds. They also lack true leaves, roots, and stems. Non-vascular plants are usually small, green mats of vegetation found in damp (wet) habitats. The lack of vascular tissue means that such plants must remain around moist environments.Just like other plants, non-vascular plants exhibit alternation of generations and cycle between sexual and asexual reproductive phases. The three main divisions of bryophytes are: Bryophyta (mosses), Hapatophyta (liverworts), and Anthocerotophyta (hornworts).
The statement comparing ionic and covalent bonds which is correct is; Choice B; Covalent bonds tend to be less polar than ionic bonds
- Although, covalent bonds between atoms of different elements are characterized as polar bonds, but the degree of polarity varies widely. Some bonds between different elements are only minimally polar, while others are strongly polar.
Ultimately, Ionic bonds can be considered the extreme in polarity, with electrons being transferred rather than shared.
- Ionic bonds are formed between highly electropositive elements (metals) and highly electronegative elements (non-metals).
- Covalent bonds are characterized by the the sharing of electrons between atoms unlike the complete transfer of electrons in ionic bonds.
Among the choices, the statement which is correct when comparing covalent bond to ionic bond is: Choice B: Covalent bonds tend to be less polar than ionic bonds.
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