Ask Question
PhysicsPhysics
25 November, 04:07

A solution of hydrochloric acid is placed on a balance. Magnesium metal is added and the mass is recorded. The solution is stirred and the mass of the solution is recorded every 10 minutes. The following data is collected:

Time (mins) Mass of Hydrochloric Acid and Magnesium (g)

0 160.0 g

10 156.5 g

20 152.0 g

30 147.5 g

40 142.5 g

What does the data show is occurring?

The hydrochloric acid and magnesium metal react to form a soluble compound.

The hydrochloric acid and magnesium metal do not react.

The hydrochloric acid and magnesium metal react to form a precipitate.

The hydrochloric acid and magnesium metal react to form a gas.

+2
Answers (1)
  1. 25 November, 04:33
    0
    Remember conservation of mass. Mass can't just suddenly show up or disappear. It has to come from somewhere, and it has to go somewhere.

    The mass of this mixture/solution is decreasing as time goes on. That

    means that some mass is going somewhere, out of the dish and away

    off the scale.

    - - React to form a soluble compound?

    Maybe, but that doesn't take mass away

    - - They don't react?

    Maybe, but that doesn't take mass away

    - - React to form a precipitate?

    Maybe, so big deal. It sinks to the bottom. It doesn't take mass away.

    - - React to form a gas?

    If that happens, then the gas carries mass away!

    That must be it!
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A solution of hydrochloric acid is placed on a balance. Magnesium metal is added and the mass is recorded. The solution is stirred and the ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
If the mass of a material is 43 grams and the volume of the material is 7 cm^3, what would the density of the material be?
Answers (1)
What is the magnitude of the force a 25 mC charge exerts on a + 2.5 mC charge 16 cm away?
Answers (1)
Vivid writing includes ___ descriptions of things that can be seen, touched, heard, smelled, and tasted. A. sensuous B. tangent C. tangible D. vociferous
Answers (1)
Find the total positive charge of all the proton in 5gm of water
Answers (1)
How would you make a structure stronger?
Answers (1)
New Questions in Physics
A student conducts and investigation to determine a ball's mass, displacement, velocity and acceleration. (A) Identify each of the following as wither a vector or scalar quantity: Mass, Displacement, Velocity & Acceleration.
Answers (1)
A ball is rolling down a hill at + 1.0 m/s, The ball is uniformly accelerating at +4.9 m/s?, What will the ball's velocity be 4.0 s later? +8.9 x 100° m/s +2.0 x 10^1 m/s +2.1 x 10^1 m/s -1.9 x 10^1 m/s
Answers (1)
What is the difference between unicellular and multicellular organisms?
Answers (1)
Is momentum conserved in the collision?
Answers (1)
Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?
Answers (2)
Home » Physics » A solution of hydrochloric acid is placed on a balance. Magnesium metal is added and the mass is recorded. The solution is stirred and the mass of the solution is recorded every 10 minutes.
Sign Up Forgot Password?