Why does a catalyst not need to be replaced for a long time?

Which of the following chemical reactions is an oxidation-reduction reaction? Answer WO3 + 3H2 W + 3H2O KNO3 + LiCl LiNO3 + KCl CaSO4 + 2NaCl Na2SO4 + CaCl2 Mg (NO3) 2 + 2HBr MgBr2 + 2HNO3 According to the collision theory and model created to

Soney listed two structures found in seedless vascular plants. 1 - stems 2 - roots Which structures in nonvascular plants are similar to these two structures?

Which statement best describes how an ionic bond forms? The transfer of electrons forms strong bonds between ions. The sharing of electrons forms strong bonds between ions. The transfer of electrons results in attractive forces between molecules.

What are the similarities and differences between protons and neutrons

Why is the mass in amu of a carbon-12 atom reported as 12.011 in the periodic table of the elements?

A gas occupies a 1.5 L container at 25 degrees Celsius and 2.0 atm. If the gas is transferred to a 3.0 L container at the same temperature, what will be its new pressure? a) 3.0 atm b) 2.0 atm c) 1.0 atm d) 4.0 atm

The maximum amount of n2h4 (hydrazine) that can be prepared from 14 grams of nitrogen and 28 grams of hydrogen by the reaction n2 + 2 h2 = n2h4 is?

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container.

Why is fluorine a gas?

What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl?-pcl5-pcl3-p2cl10-p2cl5