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
Illusion [34]
2 years ago
7

The sum of protons and neutrons in an atom is called the.

Chemistry
1 answer:
tresset_1 [31]2 years ago
6 0
Atomic mass / mass number / atomic weight

(all of which mean the same thing)
You might be interested in
Help me Quickly please!
Naya [18.7K]
2 a is 8 i believe, not sure but im 88%

8 0
3 years ago
List four ways that scientific information is communicated to the general public
lawyer [7]
1. Publishing work in journals
2. Publishing on blog sites
3. Publishing with magazines and newspapers
4. Present at public lectures
5 0
3 years ago
20<br> How do you solve this ?
Kaylis [27]

Answer:

eight oxygen atoms

Explanation:

This formula shows that in one mole of this compound, there are 3 moles of Ca atoms that combine with 2 moles of the PO4(phosphate) groups, which gives a total of 2 moles of P atoms and 8 moles of 0 atoms.

5 0
2 years ago
Why do we have to add acid to water but not water to acid
KATRIN_1 [288]
It should be CAT!!!!
5 0
3 years ago
Choose the molecule(s) that will only show two signals, with an integration ratio of 2:3, in their 1H NMR spectrum.
mrs_skeptik [129]

The question is missing the molecules in which the integration ratio of 2:3 will be observed. The complete question is given in the attachment.

Answer:

Molecule (a), (c), and (f) will show two peaks with the integration ratio of 2:3 in their 1H NMR spectrum

Explanation:

In the 1H NMR spectrum, the peak area is dependent on the number of hydrogen in a specific chemical environment. Hence, the ratio of the integration of these signals provides us with the relative number of hydrogen in two peaks. This rationale is used for the assignment of molecules that will give 2:3 integration ratio in the given problem.

  • Molecule (a) have two CH₂ and three CH₃ groups. Hence, it will give two peaks and their integration ratio becomes 2:3 (Answer)
  • Molecule (b) contains three chemical environments for its hydrogen atoms
  • Molecule (c) have a single CH₂ and CH₃ group giving integration ratio of 2:3 (Answer)
  • Molecule (d) will give two peaks but their ratio will be 1:3 because of two hydrogens of CH₂ and six hydrogens from two CH₃ groups
  • Molecule (e) have three CH and three CH₃ groups, so their ratio will become 1:3
  • Molecule (f) contains four CH and two CH₃ groups, giving two peaks. So, the integration ratio of their peaks is 2:3 (Answer)
  • Molecules
  • (g)
  • and
  • (h)
  • both have two CH and two CH₃ groups giving two peaks with the integration ratio of 1:3

3 0
3 years ago
Other questions:
  • What is the concentration of a solution prepared by placing 20. mL of 0.12 M K2S in a graduated cylinder and pouring water until
    12·1 answer
  • Which group of atoms has this electron dot structure? noble gases non-metals metals network solids alkaline liquids
    13·1 answer
  • Are eye drops a base or acid???
    14·1 answer
  • One reaction involved in the conversion of iron ore to the metal is FeO(s) + CO(g) → Fe(s) + CO2(g) Use Hess’s Law to calculate
    15·1 answer
  • a collection of nerve fibers through which impulses travel between the central nervous system and other parts of the body
    12·1 answer
  • QY
    15·1 answer
  • How many electrons does Br lose or gain to fill its octet?
    12·1 answer
  • Help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·2 answers
  • Help<br> me i am on a quiz
    11·2 answers
  • An airplane flew 3043 km from Houston to Seattle in 5.5 hours. What was the average speed, in m/s rounded to the nearest hundred
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!