None of those!
To express chlorine (Cl) as an integer, you can use its atomic number, which is 17. This indicates that a neutral chlorine atom has 17 protons in its nucleus. In terms of its most common ion, Cl⁻, it has gained one electron, but the integer representation remains the atomic number 17. Therefore, Cl can be represented as the integer 17.
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
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.
S8 (s) + 16Cl2 (g) ---> 8SCl4 (?)
The fractional abundance is calculated by dividing the abundance of the isotope of interest by the abundance of all the isotopes of the element. For chlorine-37, the percent abundance is 0.2434, or 24.34%.
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 !