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
snow_lady [41]
2 years ago
12

Please help with questions 14-17 ! and thanks - will mark you brainliest

Chemistry
1 answer:
KiRa [710]2 years ago
8 0

Answer: 14 :12 water molecules,  

Explanation: 17: 6 molecules

You might be interested in
Given the balanced equation 2KC103+ 2KC1+302
8090 [49]

is it decomp single replacement double replacement

4 0
2 years ago
How is cooking like science? ( be specific ) ( 8 sentences ) <br> Thanks!!!!&lt;3
UNO [17]
A lot of cooking involves chemistry and is essentially a series of chemical reactions. Knowing about this kitchen chemistry can help you to understand much more about what’s happening – and why your recipes sometimes go wrong.Bananas turning brown is kitchen science.Why curry is hot uses chemical formulas.What happenes when meat cooks involves chemical formulas.Why popcorn pops inovopves chemical formulas.And,why honey is good for sore throats involves chemical formulas.
6 0
3 years ago
Read 2 more answers
Given this reaction, N2O4(g) 2NO2(g), what shifts will occur if Q = K?
MAXImum [283]

Answer:

It shifts to the left

Explanation:

7 0
3 years ago
The graph below shows the decay of a radioactive isotope. What is the half-life of the isotope?
Stells [14]
I think the answer is b
3 0
3 years ago
An experiment with 55 co takes 47.5 hours. at the end of the experiment, 1.90 ng of 55-co remains. if the half-life is 18.0 hour
Andru [333]

Answer:

\boxed{\text{10.7 ng}}

Explanation:

Let A₀ = the original amount of ⁵⁵Co .

The amount remaining after one half-life is ½A₀.

After two half-lives, the amount remaining is ½ ×½A₀ = (½)²A₀.

After three half-lives, the amount remaining is ½ ×(½)²A₀ = (½)³A₀.

The general formula for the amount remaining is:

A =A₀(½)ⁿ

where n is the number of half-lives

n = t/t_½

Data:

   A = 1.90 ng

    t = 45 h

t_½ = 18.0 h

Calculation:

(a) Calculate n

n = 45/18.0 = 2.5

(b) Calculate A

1.90 = A₀ × (½)^2.5

1.90 = A₀ × 0.178

A₀ = 1.90/0.178 = 10.7 ng

The original mass of ⁵⁵Co was \boxed{\text{10.7 ng}}.

7 0
2 years ago
Other questions:
  • A solution is made by dissolving
    12·1 answer
  • ReAcTanTS and PrOducTS
    7·1 answer
  • The light reactions synthesize ATP, NADPH, and O2 using which of the the following process(es):
    10·2 answers
  • Two colorless solutions are mixed together bubbles form as the solution is stirred give to possible explanations for this result
    9·1 answer
  • Sodium chloride was dissolved in water to produce a 1.5M solution. Explain what this concentration tells us about the NaCl solut
    14·1 answer
  • Which notation represents the largest atomic radius?
    14·1 answer
  • The current federal agency responsible for safety-related issues of nuclear energy is the:
    8·2 answers
  • What mass of solid that has a molar mass 89.0 g/mol should be added to 100.0 g of benzene to raise the boiling point of benzene
    11·1 answer
  • Select the correct image.
    8·1 answer
  • What is the final volume?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!