Answer:
2. LiOH
Explanation:
An Arrhenius base is a substance or chemical compound which increases the number of OH- ions when added in water.
LiOH or lithium hydroxide is one of the strong Arrhenius base as it ionizes completely or near-completely in solution. When LiOH is added to water , it dissociates into lithium (Li+) and hydroxide (OH−) ions.
Hence, the correct answer is 2. LiOH.
Answer:
copper I oxide
Explanation:
Copper is known to form two oxides; copper I oxide and copper II oxide.
In the question we have the ions; Cu1+ and O2-. Ionic compounds are formed by a combination of ions as typified below;
Cu^+ + O^2- -------> Cu2O
This compound is copper I oxide
The answer is C) catalyst speed up reactions and activation energy
It’s B
Silicon is used for electronic devices because it is an element with very special properties. One of it's most important properties is that it is a semiconductor.
Continent drifts
Explanation:
The use of fossil evidences to support the correlation of land masses that are presently not together can suggests that continents do move and land masses can change position.
This was one of the earliest prove suggest by Alfred Wegener to back up his theory of continental drift.
- Since fossils are evidence of prehisotric life, a place originally together should have the same fossil contents.
- When they become separated, the fossil contents in their lithology should match.
learn more:
Continental drift brainly.com/question/5002949
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