Your answer is mass and speed! Please give me brainlist :)
Answer:
Explanation
Density can be found by dividing the mass by the volume.
We know the iron sheet has a mass of 28.5 grams and the volume is 3.60 milliliters.
Substitute the values into the formula.
Divide.
Let's round to the nearest thousandth.
The 6 in the ten-thousandth tells us to round the 6 to a 7.
The density of iron is about <u>7.917 grams per milliliter.</u>
We need to increase the concentration of common ion first, in order to promote the common ion effect
<h3>What is the Common ion effect?</h3>
It is an effect that suppresses the dissociation of salt due to the addition of another salt having common ions.
For example, a saturated solution of silver chloride in equilibrium has Ag⁺ and Cl⁻ . Sodium Chloride is added to the solution and has a common ion Cl⁻. As a result, the equilibrium shifts to the left to form more silver chloride. Thus, solubility of AgCl decreases.
The Equilibrium law states that if a process is in equilibrium and is subjected to a change
- in temperature,
- pressure,
- the concentration of reactant or product,
then the equilibrium shifts in a particular direction, according to the condition.
Thus, an increase in the concentration of common ion promotes the common ion effect.
Learn more about common ion effect:
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b,f,h are already balanced
Answer:
After 2 half-lives there will be 25% of the original isotope, and 75% of the decay product. After 3 half-lives there will be 12.5% of the original isotope, and 87.5% of the decay product. After 4 half-lives there will be 6.25% of the original isotope, and 93.75% of the decay product.
Explanation:
