Your qiuestion cannot be answered as stated. Please explain and submit again.
Because they are both multiples of two, so when they're added, the sum must be another multiple of two. (One group of twos plus another group of twos must be a new group of twos, just like one group of cows plus another group of cows must be a new group of cows.)
Carbonate has a negative two charge (CO32-). Group 1 elements have a plus 1 charge, and group II elements have a plus 2 charge. In order balance the reaction so that the charge is balanced, the stoichiometry comes out 1 to 2 for Group 1 and 1 to 1 for the Group II.See the Related Questions for more information about balanced reactions and stoichiometry.
Two of them. A group 2 element has two valency electrons whereas those in group 17 have 7. The latter need one electron to make an ionic bond so two of them can react with a single group 2 element.
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Any two persons can get married. So yes.
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normally they have "o" plus or negative.
A phospholipid molecule consists of a glycerol backbone, two fatty acid tails, and a phosphate group. The glycerol is attached to the two fatty acids, which are hydrophobic, while the phosphate group is hydrophilic. This unique structure allows phospholipids to form bilayers in cell membranes, creating a barrier that separates the interior of the cell from the external environment. Note that the other components mentioned (adenosine, ribose, nitrogen base) are part of nucleotides, not phospholipids.
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No. The child will be either group A or group B, but not group O. This is because the father can donate only a group A gene or a group B gene, so since group A and group B are dominant over group O, the child could not have group O blood.
Two parents with blood type A+ can have an O+ baby. If they do so, the parents are certainly heterozygous for type A.
of course.