No this is incorrect. We do not want the greenhouse affect
Answer:
energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.
Explanation:energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.
Answer:
Three halogens:
Fluorine, chlorine, bromine.
Explanation:
Halogens are present in group seventeen of periodic table.
Their are five elements in this group fluorine, chlorine, bromine, iodine, astatine.
Three halogens:
Fluorine, chlorine, bromine.
All these share common properties such as,
All of these have seven valance electrons.
When combine with hydrogen they form acids.
H₂ + Cl₂ → 2HCl
All of these are toxic in nature.
They are highly electronegative and most reactive elements.
When combine with metals they form salts such as sodium chloride, magnesium bromide.
2Na + Cl₂ → 2NaCl
2Na + Br₂ → 2NaBr
Mg + Br₂ → MgBr₂
Mg + Cl₂ → MgCl₂
Answer:
Molar mass of Na2HPO4=141.96, of Na2HPO4. 12H2O = 358.14: so to get the same 0.4 M: 28.65/358.14*141.96 g, add water until you reach 200ml , dissolve all solid and then filter to make sterile.
Explanation:
Kr 5s2 is the correct noble gas configuration for strontium
