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mash [69]
3 years ago
6

Kendra conducts an experiment. She mixes two chemicals, resulting in a chemical reaction. Based on Kendra's

Chemistry
1 answer:
kondaur [170]3 years ago
3 0

Answer: It changed in identity and properties.

Explanation:

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Alka-seltzer is an antacid that is dissolved in water before use. for an experiment, three tablets of alka-seltzer are dissolved
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Alka-seltzer in an antacid that contains a mixture of sodium bicarbonate and citric acid. When the tablet is dissolved in water, the reactants which are in solid form in tablet become aqueous and react with each other.

During this reaction, Carbon Dioxide gas is evolved which causes the reaction mixture to fizz. The equation is given below.

NaHCO_{3}\ (aq) +  H_{3}C_{6}H_{5}O_{7} (aq)\rightarrow Na_{3}C_{6}H_{5}O_{7}(aq)+ CO_{2}(g)+H_{2}O (l)

Rate of the above reaction is affected by the Temperature.

As the temperature increases , the rate of the reaction increases. This happens because at higher temperature, the collisions between reacting species are more which result in formation of product in less time. This increases the rate of reaction.

We have been given equal volumes of water for each beaker. But the temperature of beaker c is 80°C which is the highest temperature. That means the reaction in beaker c is fastest.

Whereas beaker a is at lowest temperature (30°C) , therefore the reaction in beaker a would be slowest .

Therefore the answer that correctly orders the reaction rates from fastest to slowest reaction is beaker c > beaker b > beaker a

8 0
3 years ago
True or false: You must make observations and conduct research prior to creating a hypothesis.
bekas [8.4K]

Answer:

true

Explanation:

...................

8 0
3 years ago
N2+3H2-2NH3 how many moles of hydrogen are needed to completely react with 2.0 miles of nitrogen
forsale [732]
The correct answer is 3 moles of nitrogen

Hope this helped :)
7 0
3 years ago
What is N3I8 chemical compound name?
joja [24]

Answer:

When naming molecular compounds prefixes are used to dictate the number of a given element present in the compound. ” mono-” indicates one, “di-” indicates two, “tri-” is three, “tetra-” is four, “penta-” is five, and “hexa-” is six, “hepta-” is seven, “octo-” is eight, “nona-” is nine, and “deca” is ten.

Explanation:

8 0
3 years ago
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