All categories

4 years ago

This scientist proposed that elements are composed of identical

Chemistry

1 answer:

sasho [114]4 years ago

6 0

Dalton based in his theory proposed the elements that are composed of identical mass and properties

You might be interested in

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning t

sleet_krkn [62]

The answer is: the weight of products is is equal the weight of the wood plus the weight of oxygen that was used to burn that wood, so weigh of the product is greater than 10 kilograms.

Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are rearranged from the reactants to the products.

In this example wood (mostly carbon) and oxygen are reactants and carbon dioxide (mostly) is product of reaction.

3 0

3 years ago

Ethanol absorbs more energy than water because it has a lower heat capacity <br><br> True or false?

Bess [88]

Answer:

False

Explanation:

It makes sense

~Plz tap the crown~

~Thank you~

5 0

3 years ago

How many cm3 are there in 0.25 dm3?

aniked [119]

250cm3 i think im not sure about it though

8 0

3 years ago

Calculating the Molecular Weight and Subunit Organization of a Protein From Its Metal Content The element molybdenum (atomic wei

Deffense [45]

Answer:

Dimer of two peptide chains with 1 mole of molybdenum metal each.

Explanation:

Percentage of molybdenum in protein = 0.08%

Molecular mass of nitrate reductase = 240,000 g

Mass of molybdenum = x

$0.08\%=\frac{x}{240,000 g}\times 100=192 g$

Moles of molybdenum = $\frac{192 g}{95.95 g/mol}=2.00 mol$

Each peptide chain of nitrate reductase contain 1 mole of molybdenum.

This means that nitrate reductase is composed of to two peptide chains. And in each peptide there is a single mole of molybdenum metal.

4 0

4 years ago

Why is plastic a better choice for the slide than aluminum?

siniylev [52]

Answer:

Plastic is better because it doesn't melt in the microwave but aluminum burns in the microwave

Explanation:

7 0

3 years ago