Answer:
The oxidation number of strontium is +2.
Explanation:
Answer:
True.
Explanation:
Chemical manufacturers strive to produce herbicides and insecticides that get rid of all pests, beneficial or not because pests and weeds reduces both quality and quantity of the crops which directly affects country's economic conditions. There are several countries which are agricultural based means they depend on the agricultural goods. So for producing maximum yield of crops, they use pesticides and herbicide to make the crop free from the pest and weeds. So chemical manufacturers produce chemicals for pest and weeds.
The ammonia gas, having a lower molecular weight than the hydrogen chloride, will diffuse faster and travel a greater length of the tube. Consequently, the white ring of ammonium chloride will form much closer to hydrochloric acid end of the tube. Which in conclusion your answer will be D :)
Explanation:
Vapor pressure is defined as the pressure exerted by vapors or gas on the surface of a liquid.
When interaction between the solute and solvent are weak then solution will evaporate readily into the atmosphere. Therefore, it means vapor pressure increases with particularly weak solute-solvent interactions.
On the other hand, when interactions between the solute and solvent of a strong enough in a solution then vapors are not formed easily. This also means that vapor pressure decreases with particularly strong solute-solvent interactions.
Answer:
Explanation: Q1 = mc(ice) ΔT (ice warms)
Q2 = ms (ice melts)
Q3 = mc((water) ΔT (water warms)
Q4 = mr (water boils)
Q5 = mc(vapour)ΔT
