Erm, just 1. Magnesium is an element and that is in its most basic form.
Answer:
The embryo, endosperm, and seed coat are the three major parts of a seed. An embryo is the young multicellular organism formed before it emerges from the seed. A seed is an embryonic plant, which stores food and is enclosed in a protective outer covering, which give rise to a new plant.
Atomic Theory. In 1897, English physicist J. J. Thomson (1856–1940) disproved Dalton's idea that atoms are indivisible. ... One of those parts is a negative tiny particle, which Thomson called a corpuscle in 1881.
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Answer:
Dissolving NH4F in water will form a weak acidic solution.
Explanation:
That it is a weak acid solution means that it has a pH below 7 but close to the value, that is, it does not contain as many acids as those substances that are around a pH of 1 to 4, generally weak acids have a pH approximately 5 to 6
