The answer is "Liquid".
Hope I could help you!
Have a great day ;)
4 protons the number of proton has the same number of electron [which is the same as atomic number]
Answer:
2.765amu is the contribution of the X-19 isotope to the weighted average
Explanation:
The average molar mass is defined as the sum of the molar mass of each isotope times its abundance. For the unknown element X that has 2 isotopes the weighted average is defined as:
X = Mass X-19 * Abundance X-19 + MassX-21 * Abundance X-21
The contribution of the X-19 isotope is its mass (19.00 amu) times its abundance (14.55% = 0.1455). That is:
19.00amu * 0.1455 =
2.765amu is the contribution of the X-19 isotope to the weighted average
2H2O2 decomposes into the products 2H2O + O2(g)
yes
Explanation:
the volume also decrease. as particles are removed from the space the gas is in, there is a decrease in the number of collisions.
