If they have 3 chemistry classes with 24 students, than there are 72 students in total. Each student requires 4 test tubes. 72 * 4 = 288 test tubes. Our answer is C.) 288 test tubes
Rate of reaction can be understood as the rate of change of the materials, such as the rate of depletion of the reactants or the rate of production of products. Therefore, if a graph of concentration and time is plotted, the rate of reaction is simply the slope of the graph.
Answer:
1) the mantle is less dense than the core but more dense than the crust.
Hydrogen, helium, lithium,
Iron, Ruthenium, Osmium, and Hassium.
They're transition metals
