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sergejj [24]
2 years ago
15

Study the trend of the graph from part C. What would the reaction time be if 3 tablespoons (45 milliliters) of water had been us

ed? Express your answer in units of seconds.
Chemistry
1 answer:
tatyana61 [14]2 years ago
4 0

Based on the trend  from the graph, the reaction time would have been 32.5 seconds.

<h3>What is the trend in the graph?</h3>

A trend is a general pattern which an observation follows based on previous observations and occurrences.

The reaction time is the time it take for a chemical reaction to occur.

Reaction time is also a measure of reaction rate. The shorter the reaction time, the faster the reaction rate and vice versa.

Based on the trend  from the graph, the reaction time would have been 32.5 seconds.

In conclusion, reaction time is a measure of reaction rate.

Learn more about reaction time at: brainly.com/question/24795637

#SPJ1

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Which describes a climate effect on the rate of weathering? Cold climates favor mechanical weathering. Chemical reactions occur
Alex777 [14]

Answer:

Cold climates favor mechanical weathering.

Explanation:

I just took the test and this is the correct answer!

5 0
3 years ago
Read 2 more answers
Write the molecular equation and net ionic equation for the reaction of hydroiodic acid and potassium hydroxide. Include phases
xz_007 [3.2K]

Answer:

Explanation:

Molecular equation for the reaction:

HI(aq) + KOH(aq) --> KI(aq) + H2O(l)

Ionic equation

K+(aq) + OH-(aq) + H+(aq) + I-(aq) --> K+(aq) + I-(aq) + H2O(l)

Net ionic equation:

H+(aq) + OH-(aq) --> H2O(l)

8 0
3 years ago
N2(g) + 2H(g) -&gt; N2 H4(g) What are the volumes of N2 gas and H2 gas required to form 28.5 grams of N2 H4 at 30'C and 1.50 atm
FromTheMoon [43]

Answer:

Volume of N₂ = 14.76 L

Volume of H₂ = 29.52 L

Explanation:

Given data:

Mass of N₂H₄ formed = 28.5 g

Pressure = 1.50 atm

Temperature = 30°C (30+273 = 303 k)

Volume of N₂ and H₂ needed = ?

Solution:

Chemical equation:

N₂ + 2H₂  →  N₂H₄

Number of moles of N₂H₄ formed = mass/ molar mass

Number of moles of N₂H₄ formed = 28.5 g/ 32 g/mol

Number of moles of N₂H₄ formed = 0.89 mol

Now we will compare the moles of N₂H₄ with N₂ and H₂ form balance chemical equation.

                N₂H₄                :                 N₂

                   1                     :                   1

                  0.89               :               0.89

                N₂H₄                :                 H₂

                   1                    :                  2

                 0.89               :                2×0.89 = 1.78 mol

Volume of H₂:

PV = nRT

1.50 atm × V = 1.78 mol × 0.0821 atm.L/mol.K × 303 K

V = 44.28atm.L /1.50 atm

V = 29.52 L

Volume of N₂:

PV = nRT

1.50 atm × V = 0.89 mol × 0.0821 atm.L/mol.K × 303 K

V = 22.14 atm.L /1.50 atm

V = 14.76 L

6 0
3 years ago
Giving two reasons,classify air as a mixture or compound.
ollegr [7]
1.) Air can be separated into its constituents such as oxygen, nitrogen etc.

2.) Air has a variable composition because at different places different amount of gases are present in air.
4 0
4 years ago
Please help I need the answer by today and it is very important! Which of the following statements best describes why the mass o
Juliette [100K]

D, because matter does not change in space but unlike gravity, which changes, matter, is the mass of it, which will stay the same unless there is a chemical change or, physical change, but not in this case, so the answer you are looking for is D. hope this enlarged your understanding and knowledge.

6 0
3 years ago
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