Answer:
Option c. It contians ionic bonds
Explanation:
Let's take as an example NaCl
An element from group 1 (alkali) with an halogen.
Elements from group 1 form cations with +1 (charge)
This ionic salt, can't never has the formula XZ₂
Ionic salts, also can be dissolved in water, and they don't contain covalent bonds.
E = m c²
where E = energy released
m = mass of the nucleus
C= velocity of light
m = 9.106 x 10⁻³ x 1.67 x 10⁻²⁷ kg
C = 3 x 10⁸ m/s and C² = 9 x 10¹⁶
E = 1.37 x 10 ⁻¹² J
How fast it changes position in time is the objects speed
"The reaction is exothermic and ΔH is negative" can be understood about the reaction and the enthalpy change (ΔH) during the reaction.
<u>Option: D</u>
<u>Explanation:</u>
When the reaction is positive, the process becomes endothermic, i.e. heat appears to be consumed by the system because the reaction products are more enthalpic than the reactants. When the reaction is negative, on the other hand, the process is exothermic, which is the total decrease in enthalpy is caused by heat production. Here the initial temperature is 21.0 C but increase in final temperature to 38.8 C, because if some processes require heat, others must give off heat when they take place.
Answer:
Through the process of condensation
Explanation:
Condensation is when gas converts to liquid. Carbon Dixide in the air will eventually convert to water and ruin the ocean water, thus affecting coral reefs. Please mark brainliest :)