if you gently shake a carbon di oxide fire extinguisher you will feel the presence of liquid within the extinguisher. What condition shoud be maintained so that carbon dioxide is in liquid state

Which by-product would be obtained in high yield if thediazotization of p-toluidine were carried out at 30 C instead of0-5 C?

Which type of drum is used for the storage of corrosives such as acids, bases, or oxidizers?

3. What do we call atoms of the same elements with different mass numbers?

How many moles of aqueous potassium ions and sulfate ions are formed when 67.3 g of K2SO4 dissolves in water? mol potassium ions? mol sulfate ions?

Which process is a chemical change? burning a match boiling water melting ice breaking glass

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed

For which one of the following molecules is the indicated type of hybridization not appropriate for M the central atom? a. BeCl2 sp2 b. SiH4 sp3 c. BF3 sp2 d. C2H2 sp e. H2O sp3

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)