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andrew11 [14]
3 years ago
9

Why do two objects with the same charge always repel each other?

Chemistry
2 answers:
Delicious77 [7]3 years ago
4 0
Because same charges repel each other while opposite charges attract. :)

Soloha48 [4]3 years ago
3 0
Well bcz some charges repeal each other while oppisite charges attract it the same thing at the other person said
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How many grams of aluminum are required to give a total dislocation length of 3,000 miles (enough to stretch from New York City
Luba_88 [7]

Answer:

0.13 g

Explanation:

mass of aluminum required = ( Dislocation length) / ( Dislocation density) × (density of metal)

3000 miles to cm (  1 mile = 160934 cm) = 3000 miles ×  160934 cm / 1 mile = 482802000 cm

density of Aluminium = 2.7 g /cm³

dislocation density of aluminum = 10¹⁰ cm³

mass of aluminum required = (482802000 cm × 2.7 g/cm³) / 10¹⁰ cm³ = 0.13 g

5 0
3 years ago
How many formula units make up 30.4 g of magnesium chloride (mgcl2)?
ahrayia [7]
There are 1.923×10^23 formula units in 30.4g mgcl2

molar mass of mgcl2= 95.211g/mol
magnesium= 24.305g/mol
chlorine= 35.45g/mol times 2
24.305+(35.45*2)= 95.211g/mol

sample divided by molar mass times Avogadro's number gives u the formula units

30.4÷ 95.211= .31929
.3193*6.022=1.9288

3 0
4 years ago
Read 2 more answers
Hurry!!!!!!!!!!!!!!! Match the terms to the correct descriptions.
viva [34]

The type of energies or the words in this item are matched with the given descriptions. The lists below are as follow.<span>

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<span>b. The answer to this item is LIGHT energy. This type of energy can be created through different means (i.e. radiation, chemical, and mechanical). This is the energy emitted by hot objects such as the sun, lasers, and bulbs.</span>

<span>c. The type of energy that is transferred by the movement of the electrons through a conductor is ELECTRICAL energy. The movement of the electrons along the line is commonly called as the current. Moreover, this is also a type of kinetic energy because of the movement of the electrons. Thus, the faster the movement of the electron the higher is the energy. </span>

<span>d. The type of energy that is stored in batteries or food is CHEMICAL energy. This type of energy is that which is stored in the bonds of the different chemical compounds. This is also most commonly released when reaction between elements/compounds happen.</span>

<span>e. The energy that travels through vibrations and waves is SOUND energy. As given above, this is associated with the movement or vibrations of the matter. This is also a type of mechanical energy because of the waves produced through to the vibrations.</span>

<span>f. The type of energy that is found in the nucleus and atoms is the NUCLEAR energy.  Nuclear reactions most often released this type of energy simultaneous with the generation of heat. </span>

<span>g. The stored energy is called the POTENTIAL energy. The equation for this energy is mgh where h is the height, pertaining to the position of the object. Once the object is released, it will be converted to other forms of energy. </span>

<span>h. The answer to this item is THERMAL energy. This type of energy can be transferred in three different ways: (1) conduction, (2) convection, and (3) radiation.</span></span>

3 0
4 years ago
Read 2 more answers
What information can a foliated metamorphic rock provide you about the conditions under which it formed?
Mnenie [13.5K]
A foliated rock forms when the minerals are realigned due to the presence of high temperature and pressure. The minerals align in such a way that the axes are directed to where the pressure was applied.
4 0
3 years ago
The overall flow of energy through an ecosystem is from
Alik [6]

Answer:

So, I don't know if this is 100% correct, but, I believe it's <u><em>B.photosynthetic organisms to herbivores to carnivores and decomposers.</em></u> I'm so sorry if it's wrong!

Explanation: looked all over go ogle.

Have a good morning, afternoon, or night!

<em>~</em><u><em>Dreamer1331</em></u><em>~</em>

<em></em>

<em></em>

<em></em>

<em></em>

<em>*please mark brainliest when possible, if correct, and if you feel I deserve it, Thank you!*</em>

7 0
2 years ago
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