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3 years ago

What does conserving mass mean in a chemical equation?

Physics

1 answer:

mixas84 [53]3 years ago

4 0

There is equal number of each type of atom on the reactant and product side.

<u>Explanation:</u>

Conserving mass in a chemical reaction means balancing the conservation of mass through the law and balancing the atoms. There is equal number of each type of atom on the reactant and product side.

There is an equal amount of atoms on both the sides that is the reactant side as well as the product side, it balances the atoms to have a conservation of mass, through the law of conservation of mass.

Using the law of conservation mass, a chemical reaction is balanced and has a conserved mass, when the reactant and the product side contain equal atoms.

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PilotLPTM [1.2K]

Answer:

The solution for this problem is:

We will be using the formula for force which is F = ma

=>10,000 = 2000 * a

but we need to solve for acceleration so divide both sides by 2000, we will get:

=>a = 5 m/s^2

Let the initial velocity was u m/s

=>By v = u - at

=>0 = u - 5 x 6

Since acceleration is constant the velocity can be computed by multiplying the acceleration by 6 seconds.

=>u = 30 m/s

Explanation:

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3 years ago

Analyze how friction can be both a positive and negative aspect on our lives

denpristay [2]

Positive - Friction allows us to create heat in a desperate situation, like being lost in the woods. If we didn't have friction, we would probably freeze to death.
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4 years ago

A resistor is made out of a long wire having a length L. Each end of the wire is attached to a termina of a battery providing a

Len [333]

Answer:

B) 2I

Explanation:

The equation that relates voltage, current and resistance is V=RI.

The equation for the resistance of a material in terms of its resistivity, length and cross-sectional area is $R=\frac{\rho L}{A}$

In this case, the length is divided by 2 while keeping its resistivity (since it's the same material) and area, which means the resistance gets divided by 2. Then, looking at the equation I=V/R and keeping V constant, one deduces that since the resistance now is half than before then current now must be twice as before.

This is all intuitive in fact, cuting a homogeneous resistor in half and leaving the rest of the variables constant makes twice as easy for the electrons to cross the conductor, thus twice the current (one has to know that all the variables involved behave linearly, as the equations show).

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3 years ago

What is the velocity (in m/s) of a 550 kg roller coaster cart at the bottom of the track if it started with 990,000 J of gravita

sesenic [268]

Answer:

60m/s

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initial energy = final energy

g.p.e = k.e

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990000Nm = 0.5 × 550 × V²

V² = 3600

V = 60m/s

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3 years ago

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vekshin1

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3 years ago