Answer:
.300M
Explanation:
It is necessary for us to remember that increasing the reactant concentration increases the rate of reaction. This is because reactant concentration is one of the most important factors that affects the rate of reaction.
Reactant concentration affects the rate of reaction because according to collision theory, chemical reaction results from effective collisions between reactants. Hence, if there are more reactants in the system, there are greater chances of effective collisions between the reactants.
Since 0.300M is a higher concentration than 0.2000M, the rate of reaction will increase when a 0.3000M solution is used.
The answers are:
Reflecting telescopes are less expensive, the materials are not costly.
Reflecting telescopes can gather light from objects. This becomes basis the system to see Celestial objects.
Reflecting telescopes uses mirrors and Refracting telescopes use lenses. It is also much bigger in size because of the mirrors placed inside.
Mammoths and dinosaurs lived in the Cenozoic era, and there was also grass. Your answers are Mammoth, dinosaur, grass.
count the elements in eqn MgI2 + Br2 -> MgBr2 + I2
1 Mg, 2I, 2Br on the left n
1 Mg, 2I, 2Br on the right
they are equal so the eqn is balanced
