Answer:
Explanation:
1. Find the order of reaction
Use information from the graph to find the order.
If a plot of ln[A] vs time is linear, the reaction is first order and the slope = -k.
2. Find the half-life
First you need to find the moles of the diluted solution (moles of solute is the *same* in both concentrated and dilute solutions, so once you find moles of diluted solution you can then use this number to find the volume of the stock, or concentrated, solution). The equation for finding Molarity (M)
A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.
Answer:
Tau ceti
Explanation:
it's the closest next to the sun
Elements are represented by a chemical symbol, which is usually the first letter or two letters of the elements name.
hope this helps!