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4 years ago

.Photography first used at a crime scene. before the 1800s during the 1800s 1900-1988 1990-present

Chemistry

2 answers:

laila [671]4 years ago

6 0

Answer:

during the 1800s

Explanation:

Alphonse Bertillon (a French police officer) was the first to methodically photograph and document crime scenes. He is also the inventor of the mug shot.

Photographs at crime scenes and criminals started at mid-1800s and they were standardized at the end of that century when they came to be widely accepted as a forensic means of identification.

sveticcg [70]4 years ago

5 0

I'm going to say during the 1800s

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Answer:

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What volume of 0.08892 M HNO3 is required to react completetly with 0.2352 g of potassium hydrogen phosphate?

galina1969 [7]

Answer:

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Explanation:

Given:

Mass of the potassium hydrogen phosphate = 0.2352

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Now,

From the reaction it can be observed that 1 mol of potassium hydrogen phosphate reacts with 2 mol of HNO₃

The number of moles of 0.2352 g of potassium hydrogen phosphate

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also,

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3 years ago

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kari74 [83]

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