answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denpristay [2]
2 years ago
7

The atomic number of nitrogen is 7. nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitroge

n-15 contains _____. 8 neutrons 15 protons 7 neutrons 8 protons
Chemistry
2 answers:
schepotkina [342]2 years ago
7 0
8 neutrons (7 protons)
Paha777 [63]2 years ago
5 0

Answer: Option (a) is the correct answer.

Explanation:

Atomic number means the sum of total number of protons acquired by an atom.

So, when atomic number of nitrogen is 7 then it means there are 7 protons present.

Whereas atomic mass means the sum of total number of protons and neutrons present in an atom.

Therefore, nitrogen-15 is an isotope of nitrogen that will always have 7 protons when it is neutral in nature. Hence, in nitrogen-15 the number of protons and neutrons are calculated as follows.

                   Atomic mass = no. of protons + no. of neutrons

                             15 = 7 + no. of neutrons

                    no. of neutrons = 15 - 7

                                               = 8

Thus, we can conclude that the atomic nucleus of nitrogen-15 contains 8 neutrons.

You might be interested in
Why are the concentrations of [H3O+] and [OH−] equal in pure water?
kotegsom [21]

Answer : The correct option is, (A) [H_3O^+]=[OH^-] because one of each is produced every time an [H^+] transfers from one water molecule to another.

Explanation :

As we know that, when the two water molecule combine to produced hydronium ion and hydroxide ion.

The balanced reaction will be:

HOH+HOH\rightarrow H_3O^++OH^-

Acid : It is a substance that donates hydrogen ion when dissolved in water.

Base : It is a substance that accepts hydrogen ion when dissolved in water.

From this we conclude that, the hydrogen ion are transferred from one water molecule to the another water molecule to form hydronium ion and hydroxide ion. In this reaction, one water molecule will act as a base and another water molecule will act as an acid.

Hence, the correct option is, (A)

3 0
2 years ago
Watch the video to determine which of the following relationships correctly depict the relationship between pressure and volume
AnnZ [28]

Answer : The correct options are,

(B) V\propto \frac{1}{P}

(C) P\propto \frac{1}{V}

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

V\propto \frac{1}{P}

The relation between the pressure and volume of two gases are:

P_1V_1=P_2V_2

where,

P_1 = initial pressure of gas

P_2 = final pressure of gas

V_1 = initial volume of gas

V_2 = final volume of gas

5 0
2 years ago
If a car travels 1255 miles how many kilometers is that i mile = 1.609km
ANTONII [103]

Answer:

2,019 km

Explanation:

Step 1: Given data

Distance traveled by the car (D): 1,255 mi

Step 2: Convert the distance traveled by the car to kilometers

To convert one unit into another, we use a conversion factor. In this case, the appropriate conversion factor between miles and kilometers is 1 mile = 1.609 km. The distance traveled by the car, in kilometers, is:

D = 1,255 mi × (1.609 km/1 mi) = 2,019 km

3 0
2 years ago
What is the symbol for the isotope of 58 co that possesses 33 neutrons?
Leona [35]
Element with an atomic number of 58 is actually Cerium, so the symbol should be Ce, not Co because that is Cobalt which has an atomic number of 27. With that being said, the notation for isotopes is the symbol of the element with a superscript and a subscript that are aligned. The superscript represents the mass number.

Mass number = protons + neutrons = 58 + 33 = 91

The subscript is the atomic number which is 58. The notation is written in the picture attached.

6 0
2 years ago
Read 2 more answers
A scientist has isolated a fatty acid that has 26 carbons bonded together. most of the carbon atoms in the chain are connected b
Tasya [4]
This is a monounsaturated fatty acid .
Saturated fatty acids are those where all the C atoms are bonded by single bonds.
When they are bonded by single bonds, each C has the maximum amount of H atoms it can bond to. It’s then saturated with H atoms.
When there are fatty acids with double bonds, then they are called unsaturated bonds as they don’t have the maximum number of H atoms.
The fatty acid in the question all the C atoms are bonded by single bonds except for one double bond , therefore it’s monounsaturated fatty acid
7 0
2 years ago
Other questions:
  • Uranium–232 has a half–life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium–232. How much uranium was or
    12·2 answers
  • Which industrial facility is most likely to produce toluene and benzene wastes?
    13·2 answers
  • Select the reagent(s) that would efficiently convert the starting material to the product for the following transformations (if
    11·1 answer
  • Nitrogen dioxide (NO2) cannot be obtained in a pure form in the gas phase because it exists as a mixture of NO2 and N2O4. At 16°
    14·1 answer
  • A balloon filled with 1.22 L of gas at 286 K is heated until the
    10·1 answer
  • Trimix is a general name for a type of gas blend used by technical divers and contains nitrogen, oxygen and helium. In one Trimi
    6·1 answer
  • imagine you have four food dyes to test A, B, C and D imagine that you are going to investigate which food dye diffuses more qui
    7·1 answer
  • 14) The central iodine atom in the ICl4- ion has __________ nonbonded electron pairs and __________ bonded electron pairs in its
    8·1 answer
  • A chiral C5H10O ether reacts with excess hot HI to give a C5H10I2 product. When this product is treated with KOH, 1,3-pentadiene
    8·1 answer
  • 5) When heated in a flame, the element Indium emits electromagnetic radiation with a distinctive indigo blue
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!