There are a total of 118 elements on the periodic table.
Answer:
This question is incomplete
Explanation:
This question is incomplete.
However, when all the required data are available, you can use the formula/steps below
Average speed/velocity (m/s) = distance (in metres) ÷ time (in seconds)
Time (in secs) = distance ÷ average speed/velocity
Kindly note that "blocks" is not a standard unit for distance measurement in science, hence the distance (since its a walking distance) must be in metres (or converted to metres if not in metres).
The distance in the formula is the distance from the hotel to the ice cream shop while the average speed is the distance covered per time as s/he walks to the ice cream shop and back. Hence, the answer gotten from the formula above will have to be multiplied by 2 (in order to get the time taken to walk to the ice cream shop and back) because the formula will only provide answer to one trip (time taken to walk to the shop).
After the multiplication mentioned above, the time in seconds should be converted to minutes by dividing the answer in seconds by 60
Answer:
The answer is
B.how many grams of solute are dissolved in a given volume of solution.
Explanation:
Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution
M=n/v
M-molar concentration
N-moles of solute
v-liters of solution
To find the molar concentration of a solution, simply divide the total moles of solute by the total volume of the solution in liters.
Molar concentration is the same as molarity, but molarity and molality are not the same thing. They are different ways to quantify the amount of solute in a solution, and the concentration of a solution in molarity is not interchangeable with its concentration in molality.
Source- Khan Academy, Wikipedia
Physical change is when something change its physics such as turning water into ice and chemical change is making something then intosomething completely different or new
Answer:
the molecular weight of H2SO4 is 98.086g/mole