Number of moles = mass of product / molecular mass
=mass of product (MgO) / 40.3
Since the mass of MgO is not given in the question, the correct answer choice cannot be given. However, proceeding witht eh above formula will enable you to find the correct number of moles given the mass of MgO.
The correct answer to the problem is 0.193 which is three significant figures.
<h3>What are significant figures?</h3>
The term significant figures has to do with the figures that have a mathematical meaning. We know that the result has to correspond to the highest number of significant figures.
Hence, If we multiply 0.34 x 0.568 the result ought to be recorded as 0.193 which is three significant figures.
Learn more about significant figures:brainly.com/question/14804345
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It's the form of energy in a moving object or a particle. It is present in any object that has a mass and a speed.
Kinetic energy = 1/2 mv²
I believe the statement above is true. <span>A </span>carbohydrate<span> is a </span>biological molecule<span> consisting of </span>carbon<span> (C), </span>hydrogen<span> (H) and </span>oxygen<span> (O) atoms, usually with a hydrogen–oxygen </span>atom ratio of 2:1. <span>When a </span>carbohydrate<span> is broken into its component sugar molecules by </span>hydrolysis<span> (e.g. sucrose being broken down into glucose and fructose), this is termed saccharification.</span>
Magnesium has just two valence electrons