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Korolek [52]
3 years ago
8

Choose all the answers that apply. Nitrogen has an atomic number of 7. Its atomic mass is 14. Nitrogen has _____. seven electron

s seven neutrons seven electron shells 23 neutrons 14 electrons
Chemistry
2 answers:
yulyashka [42]3 years ago
5 0

Answer:

Nitrogen has 7 electrons as well as 7 neutrons. the atomic number represents the number of electrons in an atom

mixer [17]3 years ago
5 0

Answer:

Seven electrons, seven neutrons

Explanation:

Nitrogen

Atomic number(number of protons): 7

Atomic mass(number of protons and neutrons): 14

Since there are 7 protons and the atomic mass is 14, there are 7 neutrons as well that comprise the atomic mass.

From the information above, we can infer that:

There are seven electrons and

seven neutrons

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Why are scientists now more excited about sound levitation than they had been previously?
Olenka [21]

Answer:

Acoustic tractor beams use the power of sound to hold particles in mid-air, and unlike magnetic levitation, they can grab most solids or liquids even small insects. For the first time engineers have shown it is possible to stably trap objects larger than the wavelength of sound in an acoustic tractor beam. This discovery could enable the manipulation of drug capsules or micro-surgical implements within the body. The discovery could even lead to levitating humans.

Explanation:

3 0
3 years ago
calculate the enthalpy change for converting 1.00 mol of liquid water at 100 C to water vapor at 145 degree celsius for water Δ
Svetllana [295]

Answer:

q1 = mCpΔT

    = 18.016g × 1.84J/g.K × (418.15-373.15)

     = 1491.72 J

q2 = n×ΔH vap

     =  1mol ×44.0kJ/mol

     = 44KJ

∴ qtotal = q1+ q2

             = 1.498kJ + 44.0kJ

             = 45.498KJ

Explanation: The heat flow can be separated into steps.all that is being observed at a constant pressure,the heat flow is equal to the enthalpy.

8 0
3 years ago
In which of the following does the land being moved contin approximately 60% water
sp2606 [1]

Answer:

C

Explanation:

The answer is C because only that amount can move

4 0
3 years ago
Read 2 more answers
Anyone could help me out?
Hoochie [10]

1.4 mg/dL = 0.014 g/L

Explanation:

Milligrams per deciliter to grams per liter

There is 1000 grams of mg/dL of 1 g/L

8 0
3 years ago
Read 2 more answers
Determine the relative formula mass of hexasodium difluoride using the periodic table below. A. 138 g/mol B. 176 g/mol C. 20 g/m
laila [671]

Answer:

Option B. 176g/mol

Explanation:

We'll begin by writing the chemical formula for hexasodium difluoride. This is given below:

Hexasodium means 6 sodium atom

Difluoride means 2 fluorine atom.

Therefore, the formula for hexasodium difluoride is Na6F2.

The relative formula mass of a compound is obtained by simply adding the atomic masses of the elements present in the compound.

Thus, the relative formula mass of hexasodium difluoride, Na6F2 can be obtained as follow:

Molar mass of Na = 23g/mol

Molar mass of F = 19g/mol

Relative formula mass Na6F2 = (23x6) + (19x2)

= 138 + 38

= 176g/mol

Therefore, the relative formula mass of hexasodium difluoride, Na6F2 is 176g/mol

3 0
3 years ago
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