Answer:
Here you go
Explanation:
Avogadro number is 6.023 x 10(23).
A mole of CaCO3 (calcium carbonate) has one mole (Avogadro number) of Ca atoms, one mole of C atoms and 3 moles of O atoms.
How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?
Answer:
Blood capillaries
Explanation:
The walls of capillaries are just one cell thick. Capillaries therefore allow the exchange of molecules between the blood and the body's cells - molecules can diffuse across their walls. This exchange of molecules is not possible across the walls of other types of blood vessel.
Steps for Determining an Empirical Formula
<span>1. Begin
with the number of grams of each element, given in the problem.2. Convert
the mass of each element to moles by means of the molar mass from the
periodic table.
3. Divide
each mole value by the smallest number of moles computed.
<span>4. Round
to the nearest whole number.</span>
</span>