Answer:
Explanation:
The positive (protons) and negative (electrons) charges balance each other in a neutral atom, which has a net zero charge. Because protons and neutrons each have a mass of 1, the mass of an atom is equal to the number of protons and neutrons of that atom.
Answer:
Explanation:
Temperature of gas in absolute scale T = 25 + 273 = 298 .
pressure of gas P = 1.013 x 10⁵ N / m²
density D = 1.799 kg / m³
= 1799 g / m³
From gas formula
PV / T = n R Where P is pressure , V is volume and T is absolute temperature , n is no of moles
P / T = n R / V
P / T = m R /M V where m is mass of gas and M is molecular weight .
m / V = D ( density )
P / T = DR/ M
PM / DT = R
Putting the values
1.013 x 10⁵ x 44 / (1799 x 298)
R = 8.314.09 J / K mole
Decomposition reactions involve the breaking down of compounds to form smaller molecules or elements.
Thus, magnesium nitride will decompose to form elemental magnesium and nitrogen gas
Mg₃N₂ → Mg + N₂
The reaction now needs to be balanced, such that the number of Mg and N atoms in the reactants is equal to that of the products.
Balanced reaction:
Mg₃N₂ → 3Mg + N₂
Ans (D)
Answer - These events can be divided in two main parts: interphase (in between divisions phase grouping G1 phase, S phase, G2 phase), during which the cell is forming and carries on with its normal metabolic functions; the mitotic phasehopes this helps :)))))
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide.