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pshichka [43]
3 years ago
9

A box is pushed down at an angle of 32 degrees on a rough surface. The box moves to the right.

Chemistry
1 answer:
Reptile [31]3 years ago
4 0

Answer:

D

Explanation:

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How to calculate the number of moles
babunello [35]

Answer:

1. The formula for the number of moles formula is expressed as.

2. Given.

3. Number of moles formula is.

4. Number of moles = Mass of substance / Mass of one mole.

5. Number of moles = 95 / 86.94.

6 0
3 years ago
Elements found in the same periods of the modern periodic table are _____.
Dennis_Churaev [7]
Try C I’m sorry if you get it wrong but I’m like 90% sure
5 0
3 years ago
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Which periodic trend quantifies the amount of energy required to remove an electron from a neutral, gaseous atom?.
igor_vitrenko [27]

Ionization energy refers to the amount of energy needed to remove an electron from an atom. Ionization energy decreases as we go down a group. Ionization energy increases from left to right across the periodic table.

<h3>What is ionization energy?</h3>

Ionization is the process by which ions are formed by the gain or loss of an electron from an atom or molecule.

Ionization energy is defined as the energy required to remove the most loosely bound electron from a neutral gaseous atom.

When we move across a period from left to right then there occurs a decrease in atomic size of the atoms. Therefore, ionization energy increases along a period but decreases along a group.

Smaller is the size of an atom more will be the force of attraction between its protons and electrons. Hence, more amount of energy is required to remove an electron.

Thus, we can conclude that the energy required to remove an electron from a gaseous atom is called ionization energy.

Learn more about the ionization energy here:

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7 0
2 years ago
Conversion of gaseous nitrogen to liquid nitrogen is an
miss Akunina [59]

Answer:

true

Explanation:

you can't change it back, it's chemically changed

8 0
3 years ago
8.) If 396 g of Carbon Dioxide (CO2) are produced, what mass of Oxygen
KengaRu [80]

Answer:

480 g of oxygen.

Explanation:

C3H8 + 5O2 --->  3CO2 + 4H2O

Using the molar masses:

3*12 + 6*16 g of CO2 were formed from 10*16 g O2

132g  g CO2 from 160 g O2

1g CO2 from (160/132) g O2

396 g from (160/132) * 396

= 480 g of oxygen.

3 0
3 years ago
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