The diagrams show gases that are stored in two separate but similar containers. 2 identical containers have gas particles, represented by small balls with arrows representing movement in random directions. The Gas 1 container has many fewer balls than the Gas 2 container. If both gases are at the same temperature, which one has the greater pressure?
O gas 1 because the particles are moving much faster
O gas 1 because it has fewer particles that are close together
O gas 2 because it has more particles that are colliding
O gas 2 because the particles have more space between them

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

you gotta add the following molecules so we can give u an answer

explanation: