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erastovalidia [21]
2 years ago
15

A 30:70 (mole %) ratio of acetone:water is heated to 54.36 ∘C at 760 mmHg. What is the total vapor pressure of the system? The v

apor pressures for acetone and water at 54.36 ∘C are 712 mmHg and 154 mmHg respectively.
Chemistry
1 answer:
stira [4]2 years ago
6 0

Answer:

numbers

Explanation:

idek im just bored

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A particle that orbits the nucleus in an atom is called a(n)
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Answer:

The correct answer is electrons.

Explanation:

The electrons refer to the negatively charged constituents, which are arranged in the orbits around the nucleus of an atom. It determines all the chemical and physical characteristics of an atom except the radioactivity and mass.  It is a stable subatomic particle witnessed in all the atoms and functioning as the chief carrier of electricity in solids.

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If potassium (K) has a density of 0.86 g/cm3, which element would have a similar density?
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C: Sodium

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An unstable nucleus which starts a decay process is called the _____.
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It Is Called The Parent Nuclide

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Which of the following is not a correct chemical equation for a double displacement reaction?
Step2247 [10]

Answer:

B. CaCl + LiCO3 yields CaCO3 + LiCl is not correct

It should be CaCl2 + Li2CO3  → 2LiCl + CaCO3

Explanation:

For a reaction to be double displacement reaction there are two things we need to look for

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2) The reactants must dissolve in water to release ions

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B. CaCl + LiCO3 yields CaCO3 + LiCl

This is not correct

The correct equation is:

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C. Na3PO4 + 3KOH yields 3NaOH + K3PO4

3Na+ + PO4^3- + 3K+ + 3OH- → 3NaOH + K3PO4

This is correct

D. 2MgI2 + Mn(SO3)2 yields 2MgSO3 + MnI4

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8 0
3 years ago
Explain how the relative atomic mass and the mass number of elements are different and hence why some elements have relative ato
padilas [110]
This is because the relative atomic mass is the sum of the no of protons and neutrons while the atomic no is of the former only. it is not a whole number it is th average weighted masses of the various isotopes of the element multiplied by their corresponding relative abundance. pls thank me and mark me briniest 
6 0
3 years ago
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