The complete equation to following equation to make a double replacement reaction is: Na2SO4 + BaCl2 = BaSO4 + 2NaCl.
<h3>What is a double displacement reaction.</h3>
A double displacement reaction is the reaction that involves the replacement of two elements.
According to this question, barium sulfate (BaSO4) and sodium chloride are produced from the chemical equation given.
This clearly suggests that Sodium sulfate is the missing reactant, hence, the complete equation to following equation to make a double replacement reaction is:
Na2SO4 + BaCl2 = BaSO4 + 2NaCl.
Learn more about double displacement reaction at: brainly.com/question/13870042
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An apple should be cut into 4 equal pieces, then put each slice in a separate container and label accordingly with letters A, B, C, and Control. Put water, ginger ale, and lemon juice into containers A, B, and C respectively but leave the Control untouched. Observe which of the slices in containers A, B, C will stay the same color after the one in control turns brown, if the slice maintains its color then the liquid added prevents an apple slice from browning. The variables are the liquids added and the control is the slice that did not have anything added to it.
Answer:
paired electrons is magnetic configuration
<u>Answer:</u>
<em>Carbon dioxide and hydrogen </em><em>are both gases hence when two bottles contain these two gases in it it is really difficult to know which is which by just seeing it.</em>
<u>Explanation:</u>
Although there are very slight <em>differences between two gases</em> which we can see physically to differentiate between them.
<em>For example</em> a very light amount of gas can be let out on a burning matchstick.
Hydrogen being a <em>highly combustible</em> will light the matchstick while letting out carbon dioxide on the matchstick take would instantly turn off the flame because carbon dioxide does not <em>aid burning. </em>
Answer: What determines how fast a reaction happens is if one of the reactants is a solid, the surface area of the solid will affect how fast the reaction goes. This is because the two types of molecule can only bump into each other at the liquid solid interface, i.e. on the surface of the solid. So basically the larger the surface area of the solid, the faster the reaction will be.
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Explanation: