SCIENCE The lab teams in Ms. Carter's class were given the assignment to investigate ana
describe a physical or chemical change that is affected by temperature.
Lab Team Observations
Lab Team
Observation
Investigation
1
the ice cube melts
an ice cube in a cup of hot coffee
2 a piece of gold reformed into a piece of jewelry the gold melts
3 a large amount of vegetable peels and fruit left the fruits and vegetables rot
for several months in a bag to make a compost
4 a rusty nail in a mixture of vinegar and water the rusty nail becomes shiny
Which lab team correctly demonstrated a physical or chemical change that is affected
by temperature?
A Lab Teams 1, 2, and 3
® Lab Teams 1 and 2
© Lab Teams 3 and 4
0 Lab Teams 1 and 4

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?