An organism that breathes with its lungs, lays eggs and has feathers is a bird!
Answer:
, 0.533 L
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

According to avogadro's law, 1 mole of every substance occupies 22.4 L of volume at STP.
Number of moles =
moles of calcium carbonate = 
As 1 mole of calcium carbonate produces = 22.4 L of carbon dioxide at STP
Thus 0.0238 moles of calcium carbonate produces =
of carbon dioxide at STP
Answer: the answer is think it yourself
Explanation:
The epicardium (external layer), the myocardium (middle layer) and the endocardium (inner layer).
Answer: A chemical reaction that stores energy is called an endothermic reaction. More energy might be released as products form than the energy needed to break the reactants apart.
Explanation: