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Dima020 [189]
2 years ago
8

1 2. How does a detergent remove a stain? ?

Chemistry
1 answer:
Masteriza [31]2 years ago
4 0

Answer:

By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.

You might be interested in
Compare the arrangements of individual particles in solids, liquids, and has
erastovalidia [21]
Solids have particles that stay in place and vibrate (least energy)
Liquids have enough energy to slide past each other and have no definite shape.
Gas has a lot of energy and moves freely with no certain shape or volume
5 0
3 years ago
What involves 2 non metals ionic or covalent bonds
Juli2301 [7.4K]

Answer:

A bond forms between two non metals is covalent

Explanation:

For example Chlorine Cl is a non metal bond in Cl - Cl is covalent

8 0
3 years ago
What is the name of the scientist who discovered that atoms have positive charges
sukhopar [10]
Atoms have positive charges? or nuclei? Rutherford conducted the infamous gold foil experiment from which he concluded an atom mist contain a dense positively charged part with a orbiting shell of negative parts. That model was refined many times to form the current model of the atom.
5 0
3 years ago
18. Describe the relationship between kinetic energy and mass, and give an example of
lidiya [134]

Answer:

Kinetic energy is directly proportional to mass

Explanation:

Kinetic energy is directly proportional to the mass of an object and also directly proportional to the square of the velocity of that object:

E_k = \frac{1}{2} mv^2

Notice that if we keep velocity constant and only increase the mass of a object, the kinetic energy of that object would increase, as we've already emphasized the direct relationship between the kinetic energy term and the mass term.

Let's take a simple example: assume that object 1 and object 2 are both moving at the same velocity but object 1 has a much lower mass than object 2. According to the equation, object 1 has lower kinetic energy. This object can then transform all of its kinetic energy into some other form, say, heat the ground. The heat transferred will be significantly lower than by the object 2 moving at the same velocity but having a much greater mass.

5 0
3 years ago
Can someone help with this???
e-lub [12.9K]

Answer:

2Mg(s) +O₂(g) → 2MgO(s)

Explanation:

Mg(s) +O₂(g) → MgO(s)

When a chemical equation is balanced, the number of atoms of each element is equal on both sides of the arrow. We usually balance O and H last.

In this case, the number of Mg atoms is equal on both sides. Thus, let's move on to balance the O atoms. On the left side, there are 2 O atoms, while there is only 1 O atom on the left side. Thus, write a '2' in front of MgO.

Mg(s) +O₂(g) → 2MgO(s)

Now, the number of Mg atoms is not equal. Write a '2' in front of Mg to balance it.

2Mg(s) +O₂(g) → 2MgO(s)

The equation is now balanced with 2 Mg atoms and 2 O atoms on each side.

6 0
3 years ago
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