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
RideAnS [48]
1 year ago
7

What is the atomic number for an element whose mass number is 78, which contains 36 neutrons per atom?

Chemistry
1 answer:
ElenaW [278]1 year ago
3 0
The atomic number for an element whose number is 78 and contains 36 neutrons per atom is 42.
You might be interested in
Why would a C-O bond have only provide 358 kJ/mol each while C=O provides 799 kJ/mol? Explain in detail.
Alina [70]

Consider the amount of energy needed to brake the bonds.

In c=o there are both a pi-bond and a sigma bond. Therefore it requires a higher energy to brake it. When considering the c-o bond there is only a single sigma bond is needed to be broken. Therefore braking is easier.

When something is easily broken they are having a weak attraction. When they harder to break they are having a stronger attraction.

Here weak attraction is having a lower energy while stronger attraction has higher energy.

Therefore c=o provides a high energy than c-o

7 0
3 years ago
Can you substitute evaporated milk for condensed milk
alex41 [277]
Yes because condensed milk and evaporated milk are similar to one another. However, there won’t be the same sweet flavor but the texture is the same.
3 0
3 years ago
If you were making S’mores [using a chocolate bar, gram-crackers, and marshmallows] at a campfire, would this process be conside
OLga [1]

Answer:

The process of making S'more by adding chocolate bar, gram-crackers, and marshmallows in layers is not a chemical reaction

Explanation:

In a chemical reaction, the substances involved in the reaction are known as the reactants and the substances produced have different physical and chemical properties than those of the reactants and they are known as the products.

The bonds that hold the atoms of the reactants are broken down and rearranged, creating entirely new substances as products. Therefore, energy must be added and/or evolved in any chemical reaction and all reactant atoms should be involved in the reaction.

The change in energy can be sensed as heat change such as increase or decrease in the temperature of the products

Since S'more does not involve any of the above changes that occur in a chemical reaction when the chocolate bar, gram-crackers, and marshmallows are put together, it is not a chemical change or a chemical reaction.

3 0
3 years ago
WILL MARK BRAINLIEST
ch4aika [34]

Answer:

hope this helps

Explanation:

it will tell you what you need to know

Download pdf
5 0
3 years ago
Which of the following has parts a and b labeled correctly
Alex

Answer:

the last one

Explanation:

A is the solution and the solvent and B is the solute

4 0
3 years ago
Other questions:
  • Emma is doing a laboratory experiment to separate components of crude oil. She decides to use a technique that will separate the
    11·1 answer
  • 3s2 what is the period number
    5·1 answer
  • Indicate the number corresponding to each coefficient required to write the balanced equation for the
    11·2 answers
  • Determine the identity of the daughter nuclide from the beta decay of 8938Sr.9039Y8536Kr8734Se9038Sr8939Y
    5·1 answer
  • A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the persons weight, in pounds, when expressed to t
    8·1 answer
  • Convert 5.68g of NaCl to moles
    6·1 answer
  • A solution of silver chlorate reacts with a solution of lithium iodide.
    6·1 answer
  • This woman is riding a bicycle down a hill at a constant speed and in a straight line. Which change will increase the speed of t
    7·1 answer
  • How hot would the water be if all the light reaching the two beakers had been transmitted
    8·1 answer
  • How many o atoms are in 259 g of c12h21o9? molar mass of c12h21o9 = 309.29 g/mol
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!