3 years ago

1 Which scientist first said that "elements are made up of identical atoms

Chemistry

1 answer:

babunello [35]3 years ago

4 0

Answer:

John Dalton

Explanation:

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What is carboxylic acid?

maksim [4K]

Answer:

Carboxylic acid

A carboxylic acid is an organic acid that contains a carboxyl group attached to an R-group. The general formula of a carboxylic acid is R−COOH or R−CO₂H, with R referring to the alkyl, alkenyl, aryl, or other group. Carboxylic acids occur widely. Important examples include the amino acids and fatty acids.

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2 years ago

Convert 32.56 km/hr into ft/hr

Gekata [30.6K]

Note that
1 m = 3.2808 ft

Therefore
1 km = 3280.8 ft
and
$32.56 \, \frac{km}{h} = (32.56 \, \frac{km}{h})*(3280.8 \, \frac{ft}{km}) = 1.0682 \, \times 10^{5} \, \frac{ft}{h}$

Answer: 1.0682 x 10⁵ ft/hr

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When one form of energy is converted to another form in any physical or chemical change, energy input alwasy equals energy outpu

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In the context of chemistry, yes. Energy input is always equal to the energy output.

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The answer is A because I know the answer

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What was significant about the rocks Darwin found in the mountains

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Sea fossils were found on top of the mountains which gave evidence of evolution for continents and oceans

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