Energy and the nature of the current
Answer: The percent composition of oxygen is 54.5%
Explanation:
Below I have attached my work through, but essentially the percent composition relies on finding the mass of the oxygens and dividing it by the mass of the whole compound. The masses of the elements can be found on the periodic table and added together to get a mass of the whole compound- ascorbic acid. Then, you turn this proportion into a percent by multiplying by 100%.
The energy to form a peptide bond comes from our food. Our cells go through cellular respiration, which is a process that converts the complex foods molecules into ATP (the energy
storing molecule ). With that ATP stored is possible to use to form the peptide bond.
Answer:
the answet is no.3.by The have different mass and different charge.
O sette
Answer: (i) blue colour fades away
(ii) Single replacement
(iii) copper sulphate + iron
iron sulphate + copper
Explanation:
Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
Here iron being more reactive than copper can easily displace copper from its salt solution and form iron sulphate and copper in elemental form.
The blue colour of the copper sulphate solution fades away.
The word equation is :
copper sulphate + iron
iron sulphate + copper