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Nutka1998 [239]
2 years ago
15

Between which two pints does the object have the greatest speed please help

Chemistry
1 answer:
Akimi4 [234]2 years ago
5 0
The answer is A to B because the distance is rising rapidly as seen by the steep slope segment A to B had
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18 g of copper is mixed with silver nitrate in water. How much copper ll nitrate will formed?
Lorico [155]

Answer:

Mass = 112.54 g

Explanation:

Given data:

Mass of copper = 18 g

How much copper(II) nitrate formed = ?

Solution:

Cu + 2AgNO₃  →  Cu(NO₃)₂ + 2Ag

Number of moles of copper:

Number of moles = mass/ molar mass

Number of moles = 18 g/ 29 g/mol

Number of moles = 0.6 mol

Now we will compare the moles of Cu with Cu(NO₃)₂ .

             Cu        :        Cu(NO₃)₂

              1           :             1

           0.6          :           0.6

Mass of Cu(NO₃)₂ :

Mass = number of moles × molar mass

Mass = 0.6 mol × 187.56 g/mol

Mass = 112.54 g

7 0
3 years ago
On a planet where the temperature is so high, the ground state of an electron in the hydrogen atom is n = 4. What is the ratio o
kvv77 [185]

Answer:

1:16

Explanation:

The ground state of an electron on the planet is n = 4 compared the ground state of an electron at n =1. For a hydrogen atom, the electron energy level is given as:

E(n)=\frac{13.6}{n^2}\\ \\Where\ n\ is\ the\ ionization \ energy

E(4)=\frac{13.6}{4^2}=\frac{13.6}{16}\\  \\E(1)=\frac{13.6}{1^2}=\frac{13.6}{1}\\  \\The\ ratio\ of\ their\ ionization\ energy=\frac{E(4)}{E(1)} =\frac{\frac{13.6}{16} }{\frac{13.6}{1} } =\frac{1}{16}=1:16

Hence the ratio of their ionization energies is 1:16

6 0
3 years ago
(NEED ANSWER NOW)
Anna11 [10]

Answer:it’s C

Explanation:

A distant luminous object travels rapidly away from an observer.

4 0
2 years ago
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚C inside a freezer for a night. When he took it out, its new volu
ad-work [718]

Initial volume of the balloon = V_{1}= 348 mL

Initial temperature of the balloon T_{1} = 25.0^{0}C + 273 = 298 K

Final volume of the balloon V_{2} = 322 mL

Final temperature of the balloon = T_{2} = ?

According to Charles law, volume of an ideal gas is directly proportional to the temperature at constant pressure.

\frac{V_{1} }{T_{1} } =\frac{V_{2} }{T_{2} }

On plugging in the values,

\frac{348mL}{298 K} =\frac{322 mL}{T_{2} }

T_{2} =276 K

Therefore, the temperature of the freezer is 276 K

5 0
3 years ago
A carbon forms one bond to an X atom plus three more bonds to three hydrogen atoms. If the hybridization to X has 81% p-characte
liraira [26]

Answer:

110 degree

Explanation:

This is because Hybridization of an s orbital with all three p orbitals (px , py, and pz) results in four sp3 hybrid orbitals. sp3 hybrid orbitals are oriented at bond angle of 109.5 degrees from each other. This 109.5 degrees gives an arrangement of tetrahedral geometry

5 0
3 years ago
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