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Mashcka [7]
2 years ago
5

How do combination circuits help prevent problems in circuits in a home? If it helps, think about a bedroom since all electrical

work in a bedroom is on the same circuit.
Chemistry
1 answer:
den301095 [7]2 years ago
6 0
‍♀️ ◻️✅◾️▫️‍◾️◻️◻️◼️
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PLEASE HELP!
castortr0y [4]

Answer:

A rolling ball eventually slows down and comes to a stop

7 0
3 years ago
Read 2 more answers
A block has a mass of 30g and dimensions of 1.5cm by 4.8cm by 2.3cm. Calculate the density (round to TWO sig figs).
adelina 88 [10]

Answer:

1.8g/cm³

Explanation:

Density is defined as the ratio of the mass of a substance and the space this subtance occupies. It is usually given in g/cm³.

The mass of the block is 30g.

The volume this mass occupies is 1.5cm × 4.8cm × 2.3cm = 16.56cm³.

The density is:

30g / 16.56cm³ =

<h3>1.8g/cm³</h3>
5 0
3 years ago
Sal drew the electron dot diagram of an aluminum atom as shown.
iren2701 [21]

Answer: He should add a single dot below the symbol to correct the electron dot diagram of an aluminium atom.

Explanation: Electron dot structures are the structures in which valence electrons around an atom are shown. The electrons are represented as dots in these structures.

Aluminium is the 13th element of the periodic table.

Electronic configuration of Aluminium is given by:

Al(Z=13):1s^22s^22p^63s^23p^1

Valence electrons of aluminium = 3

In the given image, 2 valence electrons are shown and total number of valence electrons are 3. So, in order to correct the diagram, he should add a single electron below the symbol.

8 0
3 years ago
Read 2 more answers
In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) + 2
djyliett [7]

Answer:

-100.125

Explanation:

We are given

          CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l)    △H = -890.0 kJ/mol

The given information is for complete reaction

we have 1.8grams of Methane

Molar mass of CH4 = 16  

No of moles of Methane = 1.8/ 16

                                          = 0.1125

So the amount of the heat will be released from the amount of the methane

Q = No of moles*( -890.0 kJ/mol)

  = 0.1125*(-890)

   = -100.125kJ/mole

Therefore the amount of Energy released from 1.8 grams of methane is equal to -100.125

3 0
2 years ago
What is the volume of 1.8 moles of O2?
liubo4ka [24]

Answer:

33.6 i think

Explanation:

8 0
3 years ago
Read 2 more answers
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