Answer:
Choice C. Sodium bicarbonate acted as a pH buffer in Solution 2.
Explanation:
Sodium carbonate is used as pH buffering agent. Buffering agent is a type of solution which contains weak base or acid which stabilize the solution when another strong acid or base is added to the solution. If acid is added, the weak base that is present in the solution reacts with it and when base is added, weak acid reacts with it.
Answer:
D. As the ball moves down the stairs, the potential energy decreases because the height decreases and is transformed to kinetic energy
Explanation:
Answer: A long, straight glucose chain (a major constituent of starch)
Explanation: Starch is mostly amylose (straight chain glucose polymer) but has varying amounts of branched glucose chains (amylopectin).
Fatty acids are hydrocarbons with a carboxylic acid group (-COOH) attached, so they are hydrophobic (don't mix with water) at one end and hydrophilic (water soluble at the COOH end)
Simple carboxylic acids don't have a long enough hydrocarbon chain to have this characteristic, e.g. CH3COOH acetic acid
Typical fatty acids found in nature include stearic acid with an 18-carbon chain
CH3-(CH2)16-COOH
Answer:
Organic matter used as a fuel, especially in a power station for the generation of electricity.
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<em><u>Hope this helps :)</u></em>
<em><u>Pls brainliest...</u></em>
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