On analysis it was found that black oxide of copper and red oxide of copper contain 80% and 89% of copper respectively show that this data is in accordance to law of multiple proportions

On analysis it was found that black oxide of copper and red oxide of copper contain 80% and 89% of copper respectively show that this data is in accordance to law of multiple proportions

On analysis it was found that black oxide of copper and red oxide of copper contain 80% and 89% of copper respectively show that this data is in accordance to law of multiple proportions

Explanation:

On analysis it was found that black oxide of copper and red oxide of copper contain 80% and 89% of copper respectively show that this data is in accordance to law of multiple proportions

On analysis it was found that black oxide of copper and red oxide of copper contain 80% and 89% of copper respectively show that this data is in accordance to law of multiple proportions

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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the answer is d.) potassium