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3 years ago

In your own words, describe the purpose of using a chemical equation.

2 answers:

7 0

Chemical equations show how chemicals interact when a reaction occurs. They use symbols and formulas to show the chemical reaction so that chemical names do not need to be written out. They also help keep track of all elements and the number of atoms of each element on each side of the equation.

Mars2501 [29]3 years ago

7 0

Answer:

The purpose of using a chemical reaction is to diagram a reaction, where the left side is formed by reactants and the right side is formed by the product. Through diagraming a reaction, chemists can hypothetically change parts of the both components, that way they would see what to expect in the reaction. Also, they can measure the approximation of amount of mass they would need, and see how components will change after the reaction

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true or false/ force field that exists in the space around every massive body is called electric field

musickatia [10]

Answer:

True

Explanation:

An electric field is a region around a charged particle or object within which a force would be exerted on other charged particles or objects.

3 0

3 years ago

As the world population continues to rise, the demand for energy also continues to rise. Which type of fuel does little to pollu

Vlad1618 [11]

Answer:

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Explanation:

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3 years ago

• An evacuated long tube contains a coin and a feather. If both objects fall together starting from the top of the tube, it is e

Ronch [10]

Answer:

c-) both objects will reach the bottom at the same instant.

(b) decrease.

Explanation:

Although the feather is lighter than the coin, the tube where the experiment is performed is evacuated. Therefore there is no air that prevents the feather from falling freely with the same acceleration and speed as the coin.

In fact in the equations of kinematics proposed by Newton, the mass of the bodies is not taken into account, as we can see in the following equation:

$v_{f}= v_{i} +g*t$

where:

Vf = final velocity [m/s]

Vi = initial velocity [m/s]

g = gravity acceleration [m/s^2]

t = time [s]

Therefore the answer is C.

Gravitational pull is a function of height, as the height of the body increases, the force of gravity decreases.

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3 years ago

What is the Distance traveled from reference point A to B?<br> (

olga_2 [115]

The distance travelled fro. reference point A to point B is :

200 m

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3 years ago

Read 2 more answers

A spinning wheel is slowed down by a brake, giving it a constant angular acceleration of 25.60 rad/s2. During a 4.20-s time inte

loris [4]

We use rotational kinematic equations,

$\theta =\theta _{0} + \omega_{0} t+ \frac{1}{2}\alpha t^2$ (A)

$\omega^2= \omega^2_{0} +2\alpha\theta$ (B)

Here, $\theta$ and $\theta _{0}$ are final and initial angular displacements respectively, $\omega$ and $\omega_{0}$ are final and initial angular speed and $\alpha$ is the angular acceleration.