1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GREYUIT [131]
3 years ago
9

How does the law of conservation of mass apply to this reaction:Al+3HCl-->H2+AlCl3

Physics
1 answer:
Veronika [31]3 years ago
8 0
This reaction is unbalanced. If you balance it, it would be:


2Al + 6HCl --> 3H2 + 2AlCl3

That way there are two aluminums on each side, six hydrogens on each side, and six chlorines on each side.

You might be interested in
How much work is done if you push a 200 N box across a floor with a force of 50 N for a distance of 20m
vovikov84 [41]
<h2>Answer: 1000 J</h2>

The Work W done by a Force F refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path.  

It should be noted that it is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy). Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter:  

1J=(1N)(1m)=Nm  

Now, when the applied force is constant and the direction of the force and the direction of the movement are parallel, the equation to calculate it is:  

W=(F)(d) (1)

When they are not parallel, both directions form an angle, let's call it \alpha. In that case the expression to calculate the Work is:  

W=Fdcos{\alpha} (2)

For example, in order to push the 200 N box across the floor, you have to apply a force along the distance d to overcome the resistance of the weight of the box (its 200 N).  

In this case both <u>(the force and the distance in the path) are parallel</u>, so the work W performed is the product of the force exerted to push the box F=50N by the distance traveled d. as shown in equation (1).

Hence:

W=(50N)(20m)  

W=1000Nm=1000J >>>>This is the work  

8 0
3 years ago
Paleontologists are experts on the rock cycle true or false
kow [346]

Answer:

I cannot do the laws of physics cuz I hate science but I'm just dance

Explanation:

<u>it's</u><u> it's true</u>

8 0
3 years ago
What is the height of a building that an object is dropped from if it has a mass of 3 kg and hits the ground with a velocity of
Marizza181 [45]

Answer:

125 m

Explanation:

m = 3kg

v = 50m/s

u = 0m/s

a = +g = 10m/s²

s = H = ?

using the formula,

v² = u² + 2as

50² = 0² + 2(10)(H)

2500 = 20H

H = 2500/20

H = 125m

8 0
2 years ago
An unknown additional charge q3 is now placed at point B, located at coordinates (0 m, 15.0 m ). Find the magnitude and sign of
Finger [1]

The first part of the question is:

Two point charges are placed on the x axis. (Attached file)The first charge, q1 = 8.00 nC , is placed a distance 16.0 m from the origin along the positive x axis; the second charge, q2 = 6.00 nC , is placed a distance 9.00 m from the origin along the negative x axis.

Answer:

q3 = +0.3nc

Explanation:

Due to the vector symbols in the solution, I've decided to attach the explanation to this answer.

5 0
3 years ago
Instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp directly to the ground. What is
lesya692 [45]

0J

According to the law of conservation of energy, the potential energy is converted to kinetic energy. Remember, potential energy is calculated using height and weight. If the ball is on the ground, height is 0.

8 0
3 years ago
Read 2 more answers
Other questions:
  • When a metal is heated, the free electrons gain _____________.
    10·1 answer
  • Dr. Perez is part of a team of researchers who are working on designing and building a probe to study solar flares. What conditi
    10·2 answers
  • How do i explain to kids how much water on earth is drinkable?
    7·1 answer
  • What type of energy is the energy of motion?
    11·2 answers
  • An object is placed near a concave mirror having a radius of curvature of magnitude 60 cm. How far should you place the object f
    8·1 answer
  • A tennis ball pitching machine goes haywire and pitches at 10 rounds per second and the speed is an incredible 300m/s, what is t
    7·2 answers
  • The flow of air from an ocean or lake to the land is called a ___________________________.
    6·1 answer
  • A 5.20-N force is applied to a 1.05-kg object to accelerate it rightwards across a friction-free surface. determine the accelera
    7·2 answers
  • Which equation correctly represents the gravitational potential energy of a
    14·2 answers
  • for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!