Answer:
Slide a magnet through the mixture. When you take the magnet off, the iron filings are going to be attracted to the magnet and the sand will stay in the bowl
Explanation:
There are four main factors that can affect the reaction rate of a chemical reaction:
Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction. ...
Physical state of the reactants and surface area. ...
Temperature. ...
Presence of a catalyst.
please make me brainlist answer
First, we calculate the number of moles of Sr2+ ions.
moles Sr = 2.53 M * 0.0014 L
moles Sr = 0.003542 mol
There is 1 mole of Sr for every mole of SrCO3, so the
moles is equal.
moles SrCO3 = 0.003542 mol
The molar mass of SrCO3 is 147.63 g/mol, so the mass is:
mass SrCO3 = 0.003542 mol * 147.63 g/mol
<span>mass SrCO3 = 0.523 grams</span>
Answer:
conduction. convection is a cycle, and radiation requires no contact
Answer:
5.0 carat x (0.200g / 1 carat) x (1 cm³ / 3.51g) = 0.28 cm³... with 2 sig figs..
Explanation:
USE DIMENSIONAL ANALYSIS. That is the point of this problem. That is why Dr. Zumdahl wrote this problem and put it in his textbook (chpt 1 Problem #57 if you're using the 7th edition, chpt1 problem #63 if you're using his 8th edition).