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Sergio039 [100]
2 years ago
9

Help please!!!!!!I have to have 20 caracters

Chemistry
2 answers:
KatRina [158]2 years ago
3 0

C. He discovered a new type of medicine that could treat infections

galben [10]2 years ago
3 0

C. He discovered a new type of medicine that could treat infections


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Which of these oxides will likely form a colored solution when dissolved in water?
Alik [6]

Mn₂O

Explanation:

The oxide that will most likely form colored solutions is Mn₂O.

This is because most transition metals form colored compounds. Manganese is a transition metal belonging to the d-block on the periodic table.

  • Other examples of transition metals are scandium, titanium, iron, copper, cobalt, nickel, zinc
  • They belong to the d-block on the periodic table.
  • They have variable oxidation states.
  • Most of their solutions are always colored.

Learn more:

Periodic table brainly.com/question/8543126

#learnwithBrainly

7 0
3 years ago
Which label belongs in the region marked X?
lubasha [3.4K]

Answer:

A) involves changes in temperature

Explanation:

The figure is missing, but I assume that the region marked X represents the region in common between Gay-Lussac's law and Charle's Law.

Gay-Lussac's law states that:

"For an ideal gas kept at constant volume, the pressure of the gas is directly proportional to its absolute temperature"

Mathematically, it can be written as

p\propto T

where p is the pressure of the gas and T its absolute temperature.

Charle's Law states that:

"For an ideal gas kept at constant pressure, the volume of the gas is directly proportional to its absolute temperature"

Mathematically, it can be written as

V\propto T

where V is the volume of the gas and T its absolute temperature.

By looking at the two descriptions of the law, we see immediately that the property that they have in common is

A) involves changes in temperature

Since the temperature is NOT kept constant in the two laws.

7 0
3 years ago
Which is the most important factor in determining the state of a substance?
Contact [7]
Temperature, that's the most important factor
3 0
3 years ago
Assuming the reaction is at STP if 2.25 moles of Li are exposed to 3.25 moles of water, which is the limiting reactant?
crimeas [40]

Answer: Lithium

Explanation:

The ratio for the reaction of Li and water is the same, but there are more moles of water than lithium. Therefore, lithium is the limiting reactant.

5 0
2 years ago
Carbon disulfide burns with oxygen to form carbon dioxide and sulfur dioxide in the following manner: CS2 + 3O2 → CO2 + 2SO2 If
SVETLANKA909090 [29]
Given:
<span>CS2 + 3O2 → CO2 + 2SO2
</span><span>114 grams of CS2 are burned in an excess of O2
</span>
moles CS2 = 114 g/76.143 g/mol → 114g * mol/76.143 g =  1.497 mol

<span>the ratio between CS2 and SO2 is 1 : 2 </span>

moles SO2 formed = 1.497 x 2 = 2.994 moles   → 2nd option

6 0
3 years ago
Read 2 more answers
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