Which of these time measurements is the smallest? 0.02 seconds, 0.02 teraseconds, 2,500 milliseconds, 25,000 nanoseconds
2 answers:
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Answer:
Explanation:
A chemical formula can be defined as a notation that is used to show which element and how many is contained in a chemical compound.
Also, in chemistry, the sum of charges of the anion and the cation of any ionic compound is always equal to zero.
A chemical equation is considered to be balanced when the amount of reactants on the left is equal to the amount of products on the right.
Therefore;
[2]FeBr3 + [3]Na2S → [1]Fe2S3 + [6]NaBr
In the above chemical equation, we will balance the reactants in the chemical equation with the smallest coefficients possible;
Two (2) moles of Iron (III) Bromide reacts with two (2) moles of Sodium Sulfide to form Iron (III) Sulfide and Sodium Bromide.
Answer: B. 0.6125 m
For spherical concave mirror:
Height of the object,
Height of the image,
Object distance, u=-0.7 m
we need to find the distance of the image, v.
These are related by the following formula:
Insert the values:
Hence, option B is the correct.