10 which diagram correctly represents the mass of one of the chemical

Question

reactions?
CO2
HCO,
M.
H+
H2O
Ca2+
R.
CaCO3
CO,2
Ca2+
CO2
HCO,
CO12-
CaCO,
H+
H2O
S.
P.
(11) Which step in the formation of limestone includes biotic parts of the
system?
A. 1. Carbon dioxide in the atmosphere
B. 2. Water in the ocean that contains carbon dioxide
C. 3. Calcium carbonate in shells and corals
D. 4. Calcium carbonate in limestone

Answer 1

To address your questions regarding the chemical reactions and the biotic components of limestone formation:

1. Diagram Representation
Unfortunately, as I don't have visual capabilities, I can't analyze or represent diagrams. However, in a typical mass representation of the chemical reactions involved in limestone formation, the key components you'd see are calcium ions (Ca²⁺), carbonate ions (CO3²⁻), and possibly carbon dioxide (CO2) and water (H2O) depending on the specific reaction pathway being depicted.

The overall process typically involves the reaction between calcium ions and carbonate ions to form calcium carbonate (CaCO3), which ultimately contributes to limestone.

2. Biotic Parts of the Limestone Formation
Regarding your question about which step in the formation of limestone includes biotic components, the correct answer is:

C. 3. Calcium carbonate in shells and corals.

Calcium carbonate is a primary component of the shells of marine organisms and corals, which are biotic elements. The other options pertain mainly to abiotic components (atmospheric CO2, ocean water, and the resulting limestone itself).