None of those!
Avogadro's number is the number of molecules in a mole of a substance. This is expressed as 6.022 141 29 E23 /mol. This is defined as the number of atoms in 12 grams of carbon12. A mole of any gas has this number of molecules. Any fraction of that mole must be divided into the number.
You express 69000 in scientific notation as 6.9 × 104
by of
To express 0.591 as a percent, multiply by 100: 0.591 × 100 = 59.1 %
I assume you mean Cl, or chlorine. Yes, it is a common reactant. Chlorine gas is highly reactive, and is actually a diatomic, so it is correct to express it as Cl2.
None of those!
It is 2x6.023 x 1023
No, T cells do not express MHC II. MHC II molecules are primarily found on antigen-presenting cells, such as dendritic cells, macrophages, and B cells, and are involved in presenting antigens to T cells for immune responses. T cells, on the other hand, express MHC I molecules, which present antigens to other immune cells.
Avogadro's number is the number of molecules in a mole of a substance. This is expressed as 6.022 141 29 E23 /mol. This is defined as the number of atoms in 12 grams of carbon12. A mole of any gas has this number of molecules. Any fraction of that mole must be divided into the number.
S(s) + 2Cl₂(g) → SCl₄(l)
To calculate the fractional abundance of Cl-37, you need to know the total abundance of all chlorine isotopes and the abundance of Cl-37 specifically. The fractional abundance of Cl-37 can be calculated by dividing the abundance of Cl-37 by the total abundance of chlorine isotopes and then multiplying by 100 to express it as a percentage.
expresar, exprimir = to express expresarse = to express oneself expreso = express (adjective) tren expreso = express train
Express (adjective) is spelled the same in French (ex/ un train express > an express train). To express (verb) is 'exprimer'.
There is no suffix in express. Ex- is the prefix in express.
an express train - luastraein, an express bus - luasbhus (m4)
EXPRESS !