The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.
Answer: <span>C, They add to its hardness.
</span>Calcium is naturally dissolved in water, it can be
found in water as Ca2+ ions and causes <span><span><span>water hardness.</span> C</span>omes from rocks
such as limestone, marble, calcite, dolomite, gypsum, fluorite and
apatite. It can also be a ph stabilizer.
</span>
Answer:
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Explanation:
Finish mRNA depletion & library generation in under 6.5 hours. Compatible with Illumina NGS systems. Request a sample. Higher success rates. Easier protocol. Includes cleanup beads. Includes adaptors. Feedback at each step. Lot to lot consistency.
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The first answer is the correct one. Osmosis is only water and diffusion is everything else across a semi-permeable membrane.
<span>This is the Epididymis. The Epididymis is a tube that carries Sperm and is located near the testicles precisely at the back of it. Usually when the it gets swollen it does cause possible pain and swollen testicles. And it is here (the Epididymis) that the sperm reach its maturity.</span>