1answer.
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
GREYUIT [131]
3 years ago
13

How many protons neutrons and electrons does zinc 66 have?

Chemistry
1 answer:
Liula [17]3 years ago
6 0
Zinc will always have 30 protons, so you'd have 66-30 = 36 neutrons

I hope it helped you!
You might be interested in
How many polar bonds are found in this molecule
Law Incorporation [45]
A bond is non polar if it is between same atoms and polar if it is between different atoms.

Same atoms are like two dogs of same strength pulling a bone towards towards each other. But when it’s different atoms it’s like a big dog and small dog then the bone is more towards bigger dog. So it’s the same way in bonds.

Bonds are made up of electrons, when the more stronger pulling atom is present than other the electrons are more towards it and as a result we have polar bond. There is development of a kind of a negative pole and a positive pole.

The stronger atom has electrons towards itself so it has a little more negative charge while the other atom has positive charge. This makes bond polar.

So just look for bond between two different atoms, it would be polar.

Look at the pic below to see the answer.

Marked with green is bond between same atoms... one carbon and another carbon so it is not polar and test marked with blue are polar.

Well the answer should have been 10 but since the bonds at 3 and 8 are two of same type we count only one of them.


The answer is 8... well the answer should be 10 otherwise... discuss it with ur teacher

6 0
3 years ago
CARBOHYDRATES are found primarily in plant-based foods and are a major source of energy in the body (4 kcals per gram). If you c
SVETLANKA909090 [29]

Answer:

The 200 grams of carbohydrate would this convert to 800 kcals in a day.

Explanation:

Carbohydrates are the source of energy. The metabolism of 1 gram of carbohydrates gives 4 kcals of energy.

If 200 grams of carbohydrate is consumed in a day, then the energy provided by it is:-

Energy\ provided\ by\ the\ carbohydrate = 200\times 4\ kcals=800\ kcals

<u>The 200 grams of carbohydrate would this convert to 800 kcals in a day.</u>

4 0
3 years ago
Rank the following from highest to lowest priority according to the Cahn-Ingold-Prelog system: -CH2CH3, -CHCH2, -CCH, -CH3.
mario62 [17]

Answer:

The order will be:

CCH > CHCH₂ > CH₂CH₃> CH₃

Explanation:

According to Cahn-Ingold-Prelog system we rank the groups based on the atomic number of directly attached atom with the chiral carbon.

For example: between C and H, we rank Carbon first.

If the same atoms are attached for different groups then we prioritized based on the second element with highest atomic number.

For example:

Among CH₃ and C₂H₅, the priority will be given to C₂H₅.

If an atom is double or triple bonded to the directly attached atom then each pi bond is considered to be a new atom.

Hence CH=CH₂ means, that there are two carbons attached to CH carbon.

So the order based on above selection rules will be:

CCH > CHCH₂ > CH₂CH₃> CH₃

7 0
3 years ago
How many millimeters are equal to 0.399195L
WINSTONCH [101]
399.195 millimeters=0.399195 liters
3 0
3 years ago
5) If a car travels 60 miles for two hours, what is the average speed?
sdas [7]

Answer:

30 mi/hr

Explanation:

3 0
3 years ago
Other questions:
  • Equal volumes of H2 and O2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas wi
    5·1 answer
  • As sunlight hits the surface of pond the water heats up and then the water circulates to transfer
    12·2 answers
  • What three things are required for combustion?
    10·2 answers
  • Do the solubility of all ionic solids increase as temperature increases?
    12·1 answer
  • what might cause the goldfish population to drop if the temperature moves out of its normal range? Name three things
    11·1 answer
  • f a solution containing 85.14 g of mercury(II) nitrate is allowed to react completely with a solution containing 14.334 g of sod
    13·1 answer
  • What is classification? write its two importance. In chemistry
    8·1 answer
  • HELP ME GUYS I NEED HELP RN
    13·1 answer
  • Which of the following is the balanced chemical equation that represents the chemical reaction of hydrogen and oxygen to produce
    9·1 answer
  • Cells are mostly made of
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!