Photosynthesis converts solar energy into chemical energy title
Answer:
1s2 2s2 2p6 3s2 3p6
Explanation:
Calcium is the 20th element. It has 20 electrons in it's neutral state. The electronic configuration is given as;
1s2 2s2 2p6 3s2 3p6 4s2
However in the compound; calcium chloride, it does not exist in it's neutral state.
CaCl2 --> Ca2+ + Cl-
In Ca2+ state, it has lost two electrons, The total number of electrons becomes; 20 - 2 = 18 electrons.
The electronic configuration is given as;
1s2 2s2 2p6 3s2 3p6
Answer is: <span>the steps in a chemical reaction in which products result from reactants.
</span>Reaction mechanism <span>tries to describe in detail what is happening at each stage of an overall chemical reaction</span><span>s (the step by step </span>sequence<span> of </span>elementary reactions, this step are not usually observable) and <span>order in which molecules react.</span>
Space exploration has
changed Florida's economy, in a way that without space exploration, our
technology would still be stagnant and thus, space exploration enabled Florida
to become an active participant in boosting and creating technology for various
sectors. Also, space exploration has provided many jobs in cape Canaveral.
Given:
Volume of sample = 5 mL Borax (Sodium tetraborate)
Temperature = 49.5 degrees C
Volume of titrant = 18.23 mL
Concentration of Titrant = 0.2222 M HCl
First, set-up a balanced equation:
<span>
Na2B4O7*10H2O(borax) + 2 HCl = 2 NaCl + 4 H3BO3 + 5 H2O
Calculate the concentrations of HCl, NaCl, and H3BO3, then solve for the Ksp or Solubility Product Constant:
Ksp = ([NaCl]^2 * [H3BO3]^4) / [HCl]^2</span><span />
