For every mole of any substance or element, the total number of atoms is 6.022 x 10^23. This is called the avogadro's number. Hence, for a) for a 0.90 mole copper, the number of atoms is 5.42 x10^23. This also applies for B) which gives silver as given. For c), the number of molecules present in a compound is also the same. Thus, for a,b,and c, the answer is 5.42 x10^23.
Answer:
b is the answer because ionic bonds are weaker than covalent forces
The answer is C, Sugar.
An array of chemical reactions done by plants to transform energy from the Sun into chemical energy, that is, in the form of sugar is known as photosynthesis. Primarily, the plants utilize sunlight's energy to react water and carbon dioxide to generate glucose (sugar) and oxygen. In plants, the process of photosynthesis takes place in the chloroplasts.
The accuracy of any measurement is best estimated from the perecentage error.
It gives the precision of the any quantity that is measured. It is calculated by determining the difference between the measured value and the theoritcial value. Measured values are those that are determined by the experiment