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Alkali is a base. It is a base that dissolves in water. This is very important to remember-. Not all bases are alkali but all alkali is base. It is a basic salt alkali earth metal or alkali metal. On adding alkali to acid the pH of the mixture increase. On adding acid to alkali the pH decreases due to the removal of alkali.
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Base pairs aren't made up of just any combination of bases. Instead, if there is an A found on one strand, it must be paired with a T on the other (and vice versa). Similarly, an G found on one strand must always have a C for a partner on the opposite strand. These A-T and G-C associations are known as complementary base pairs.
Let us look at the steps of adding exponents. Step 1: Check the terms in the expression if they have the same base and same exponents. For example, 2 2 + 2 2. As we can see, both the base and exponent are 2. Step 2: If the base and exponents are different, calculate the expression with individual terms. For example, 5 3 + 4 2.
base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators ( e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis). Examples of bases are the hydroxides of the alkali and alkaline earth metals ( sodium ...
Mar 17, 2022 · The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.
The <base> tag specifies the base URL and/or target for all relative URLs in a document. The <base> tag must have either an href or a target attribute present, or both.
