It is false because an endothermic reaction will also start when energy is received from the environment when there is no solution involved
Hey there,
Here are some lists of physical changes of iodine:
- Color (Color is usually violet-black)
- Odor (Quite a strong, unpleasant smell)
- Density (It is heavy)
- Appearance (shiny)
Hope this helps.
The best answer for this question is <span>d. A person should seek treatment the first moment he or she suspects having an STI.</span><span>
The moment a person suspects that he/she has an STI, that person must immediately have him/her self checked by a doctor. The earlier an STI can be diagnosed, the earlier it can be treated. A person does not have to wait for a symptom to appear before treating the infection.</span>
Answer:
Common properties of hydrocarbons are the facts that they produce steam, carbon dioxide and heat during combustion and that oxygen is required for combustion to take place. The simplest hydrocarbon, methane, burns as follows: CH4 + 2 O2 → 2 H2O + CO2 + energy.
Explanation:
Calcium Carbonate is CaCO3
Hydrochloric Acid is HCl
CaCO3 + 2HCl ----> CaCl2 + H2O + CO2
