Answer:
<h3>The answer is 41.05 %</h3>
Explanation:
The percentage error of a certain measurement can be found by using the formula
From the question
actual density = 0.95 g/mL
error = 0.95 - 0.56 = 0.39
So we have
We have the final answer as
<h3>41.05 %</h3>
Hope this helps you
Answer:
It uses fossils to help pinpoint the ages of rocks.
Explanation:
Radiocarbon dating can not be used to determine the age of rocks.
Carbon dating works well only for objects that are less than 50,000 years. Most rocks are far older than that. Over time, carbon-14 decays gradually into nitrogen. Hence, we can not really use radiocarbon dating to determine the absolute age of a rock sample since the carbon-14 in the fossils of ancient rock samples may have completely decayed.
Answer:
The Density of Magnesium.
Explanation:
In a redox chemical reaction, one species gets reduced and another gets oxidized. Manganese element is reduced in this reaction.
<h3>What is oxidized and reduced?</h3>
In a redox reaction, the increase or decrease in the oxidation number and electrons results in the reduction and oxidation of the chemical species. The oxidation and reduction occur simultaneously in a reaction.
The oxidation number of Mn in permanganate ion was +8 on the left side and decreased to +4 on the right side of the equation. Potassium permanganate is an oxidizing agent that has reduced the manganese ion of the permanganate ion.
Therefore, manganese is reduced.
Learn more about reduction and oxidation here:
brainly.com/question/2427143
#SPJ4
