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Vadim26 [7]
3 years ago
6

Please help :) brainliest and +10 pts

Chemistry
2 answers:
Ludmilka [50]3 years ago
8 0
Im guesing D but if im not right im sorry i know it its just i dont remember?!
scZoUnD [109]3 years ago
5 0
<span>C) Salt, because ionic compounds have attractions between ions of adjacent particles. Just took this test, hope this helps!</span>
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PLEASE HELP WILL RATE THE BRAINLIEST
erastovalidia [21]

The Plum Pudding model of the atom was like a  modernchocolate chip cookie it had subatomic particles embedded inside it in no particular arrangement

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4 0
3 years ago
Which of these elements have the same number of valance electrons
solmaris [256]
Both carbon and lead belong to Group IV elements, and thus they have the same number of valence electrons. 
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I hope this helped you, please tell me if I am correct or not <3
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6 0
3 years ago
Is it true that the formula for magnesium sulfate shows that there are four atoms of sulfur
Ulleksa [173]
The chemical formula for magnesium sulfate is MgSO4, so it shows that there are four atoms of oxygen but not sulfur. There is only one atom of sulfur in the formula
4 0
3 years ago
describe the law of conservation of energy and two examples of energy being transformed from one type to another.
VladimirAG [237]

Answer:

look in the explanation part

Explanation:

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

3 0
3 years ago
55 L of a gas at 25oC has its temperature increased to 35oC. What is its new volume?
ladessa [460]

Answer:

Approximately 56.8 liters.

Assumption: this gas is an ideal gas, and this change in temperature is an isobaric process.

Explanation:

Assume that the gas here acts like an ideal gas. Assume that this process is isobaric (in other words, pressure on the gas stays the same.) By Charles's Law, the volume of an ideal gas is proportional to its absolute temperature when its pressure is constant. In other words

\displaystyle V_2 = V_1\cdot \frac{T_2}{T_1},

where

  • V_2 is the final volume,
  • V_1 is the initial volume,
  • T_2 is the final temperature in degrees Kelvins.
  • T_1 is the initial temperature in degrees Kelvins.

Convert the temperatures to degrees Kelvins:

T_1 = \rm 25^{\circ}C = (25 + 273.15)\; K = 298.15\; K.

T_2 = \rm 35^{\circ}C = (35 + 273.15)\; K = 308.15\; K.

Apply Charles's Law to find the new volume of this gas:

\displaystyle V_2 = V_1\cdot \frac{T_2}{T_1} = \rm 55\;L \times \frac{308.15\; K}{298.15\; K} = 56.8\; L.

8 0
3 years ago
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