What ever your demcial is move it to the left twice until there is no demcial like 9.8 move twice 980
First let's find how much 30Si in nature: 100%-92.2%-4.67%=3.13%
Average M = M(28Si) * 0.922 + M(29Si) * 0.0467 + M(30Si) * 0.0313;
Let's substitute all the values we know:
28.09 = 27.98*0.922 + 28.98*0.0467 +x * 0.0313;
x = 30.03 g/mol
<span>Heat capacity is the ratio of the amount of heat energy transferred to an object to the resulting increase in its temperature. Molar heat capacity is a ..... Data collected during a constant-pressure calorimetry experiment can be used to calculate the heat capacity of an unknown substance</span>
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The department of the FBI in which Natalia is most likely to work for is Questioned Documents Unit (QDU).
<h3>What is Questioned Documents Unit?</h3>
This is a unit of the FBI which is specialized in conducting forensic examinations on evidence collected during an investigation.
Such examinations may include examining documents and the instrument used to create evidences which are taken from crime scenes in order to solve the case.
Read more about Questioned Documents Unit here brainly.com/question/15246714