Compound X forms compound Y in the reaction shown in the equation. No knowledge of this reaction is required.
C7H6O3 + C2H4O2 → C9H8O4 + H2O
compound X compound Y
What mass of compound X is required to produce 8.4g of compound Y, if the yield is 40%?
[Molar masses/gmol–1: C7H6O3 = 138 C9H8O4 = 180]

Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presión. ¿cual será el volumen del gas a condiciones normales? sí el gas es oxígeno, ¿cuál será su peso? y ¿cuántas moléculas están presentes en el sistema?

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

In apex! a liquid heated beyond a certain temperature becomes