Answer:
Hydrogen gas and a salt formed at the end of the reaction.
Explanation:
Hydrogen Gas has formed which inflated the balloon
Usually, metals and acids react to form a salt and Hydrogen Gas.
Here's what happened:
Zn (s) + 2HCl (aq) → 
(aq) +
(g)
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The compound that is most likely present when treated with bromine and the sample absorbs the red bromine color is ; Cycloheptene
<h3>What is cycloheptene </h3>
Cycloheptene is an unsaturated colorless oily liquid which is insoluble in water it absorbs Bromine when used in performing unsaturation test due it unsaturated nature.
The red bromine color will be absorbed when used to treat Cycloheptene but will not be absorbed when used to treat cycloheptane due to its saturated nature.
Hence we can conclude that the compound that is present is Cycloheptene.
Learn more about Unsaturation : brainly.com/question/561845
<span>sunspots, hope this helps!!!!</span>
Answer:
= 1.806 × 10^25 molecules.
Explanation:
1 mole of CO2 contains 6.02 × 10^23 molecules
30 moles of CO2 will contain ( 30 × 6.02 × 10^23 )
= 1.806 × 10^25 molecules.
<span>The answer is "D" where the number of collisions per unit area is reduced by one-half. Drawing back on the piston means the volume is increased. The pressure is reduced. There are fewer collisions when the pressure is reduced.</span>
