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
NikAS [45]
3 years ago
5

There are 13 instances on the periodic table where the atomic mass does not increase along with atomic number. For each of these

13 instances, please provide the atomic number, name, and mass number of each pair of elements. For example: 18-Argon-40; 19-Potassium-39.
Use the back if necessary.
Chemistry
1 answer:
Aneli [31]3 years ago
8 0

Answer:

i don't know the answer right now

You might be interested in
If you are given a 1.0 L (1000mL) of an unknown liquid which has the mass of 500 grams it is most likely which of the above subs
pantera1 [17]
Given in the problem is the mass of the liquid (500 grams) and the volume of the liquid (1000 ml = 1000 cm^3).

We can use these two givens to calculate the density of the liquid using the following rule:
density = mass / volume
density = 500 / 1000 = 0.5 grams / cm^3

Comparing the calculated density with the choices we have, we can deduce that the liquid is most likely to be propane with density 0.494 g / cm^3
6 0
4 years ago
the actual yield of a product in a reaction was measured as 2.80 g. if the theoretical yield of the product for the reaction is
olga_2 [115]

The percentage yield of the product if the actual yield was measured as 2.80 g and the theoretical yield is measured as 3.12 g is 11.43%.

<h3>How to calculate percentage yield?</h3>

The percentage yield of a substance can be calculated by dividing the difference between the actual and theoretical yield by the actual yield, then multiplied by 100.

Percentage yield = (theoretical yield - actual yield)/actual yield × 100

According to this question, the actual yield of a product in a reaction was measured as 2.80 and the theoretical yield of the product for the reaction is 3.12 g.

Percent yield = (3.12g - 2.80g)/2.80 × 100

Percent yield = 11.43%.

Therefore, percentage yield of the product if the actual yield was measured as 2.80 g and the theoretical yield is measured as 3.12 g is 11.43%.

Learn more about percent yield at: brainly.com/question/17042787

#SPJ1

5 0
2 years ago
What is the relationship between frequency and wavelength?
IrinaVladis [17]

Answer:

frequency it the measure of the wave length. The measure of the peaks and troughs is how you measure the frequency. the distance between these is the wave length.

6 0
3 years ago
A 40 g gold coin is cooled from 50°C to 10°C (CAu is 0.13 J/g-°
Debora [2.8K]
When the Heat gain or lose = the mass * specific heat * ΔT

and when we have the mass of gold coin= 40 g 

and the specific Heat of gold=  0.13 J/g°

and ΔT = (Tf- Ti) = 10°C - 50°C = -40 °C

so by substitution:

∴Heat H = 40 g * 0.13 J/g° * -40
               = - 208 J
4 0
4 years ago
Which statement is incorrect?​
adoni [48]
I think it is d because it talks about other things the other ones finest talk about so go with d or c I hope you get it right good luck
8 0
3 years ago
Read 2 more answers
Other questions:
  • A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen t
    15·1 answer
  • The US coast guard finds a glacier that has the mass of 263 pounds. When it melts, what will the mass be
    13·2 answers
  • What is conserved during all chemical reactions?
    11·2 answers
  • A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?
    12·1 answer
  • Please help!!! I’m clueless!!!
    14·1 answer
  • The conjugate base of hydroquinone is used in the synthesis of PEEK. Is hydroxide a strong enough base for deprotonating hydroqu
    6·1 answer
  • What is the mass of sodium thiosulphate pentahydrate required to prepare 250cm3 of a 0.14mol/dm3 solution
    9·2 answers
  • How many moles are there in 1.27 x 10^24 atoms of potassium
    10·1 answer
  • I need help asap plzz first person to answer i will mark brainliest
    9·1 answer
  • How many moles are 16.3 grams of lithium
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!