What does the law of conservation of matter show?
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A. That matter can never change form.
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B. That atoms in matter can never be rearranged,
C. That atoms will combine in the simplest possible arrangement,
D. That the total number of atoms in matter will never change,
- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.
- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.
- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.
- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.
so the best choice is a.) 2 calcium (ca) atoms
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A. That matter can never change form...