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
STALIN [3.7K]
2 years ago
7

Brainiest and 10 Points

Chemistry
2 answers:
Soloha48 [4]2 years ago
8 0

I believe the answer for this is:

C. Visible Light Rays

I hope this helps! :D

Nezavi [6.7K]2 years ago
4 0

Answer:

C, visible light rays :)

Explanation:

Hope i could help

You might be interested in
After 11.5 days, 12.5% of a sample of radon-222 that originally weighed 42g remains. What is the half-life of this isotope?
Bond [772]
Half-life is defined as the amount of time it takes a given quantity to decrease to half of its initial value.  The equation to describe the decay is
Nt=N0(1/2) ^{t/t(1/2)}  where N0 is the initial quantity, Nt is the remaining quantity after time t, t1/2 is the half-time.  So work out the equation, t1/2 = t (-ln2)/ln(Nt/N0) = 11.5*(-ln2)/ln(12.5/100) = 3.83 days
5 0
3 years ago
The graph shows the changes in the phase of ice when it is heated.
kow [346]

Answer:

A) 0 °C, because it is the melting point of ice.

Explanation:

  • Point B is the temperature at which the water is converted from ice (solid phase) to liquid water (liquid phase), which is the melting transition of water.

Melting point of the water is at 0.0°C.

<em>So, the right choice is: A) 0 °C, because it is the melting point of ice. </em>

<em></em>

6 0
3 years ago
Read 2 more answers
Be able to identify the correct elements using clues such as numbers of protons,locations (family/period), number of neutrons, n
Brilliant_brown [7]

an element's name, chemical symbol, atomic number, atomic mass.

IDK what you are even asking for

6 0
3 years ago
When benzene (c6h6) reacts with bromine (br2) bromobenzene(c6h5br) is obtained: c6h6 + br2 → c6h5br + hbr what is the theoretica
saveliy_v [14]

Answer A) : We have to calculate the number of moles of Benzene involved in the reaction,

30 g / 78 moles of benzene = 0.384 moles


For bromine it will be the same process,

65 g / 159.8 moles = 0.406 moles


By observing the reaction given above we can say that the reaction ratio of bromine and benzene is 1 : 1


We need to find the mass of bromobenzene,

which should be, 6(12) + 5 (1)+ 79.90 = 156.9 g/mol


So, the mass of bromobenzene will be 156.9 g/mol X 0.3846 mol = 60.343 g


Hence the theoretical yield will be 60.34 g


Answer B) : To calculate the actual yield we have to divide it with theoretical yield.


(56.7g / 60.343 g ) X100% = 93.96 %


Here, we can say that we got 93.96 % of actual yield.


As we know it is impossible to get 100% yield in any reaction.

3 0
3 years ago
What does each component of the punnet square represent
Mamont248 [21]
<span>By convention maternal alleles are represented in first row and paternal alleles in first column (leaving the first square empty), thus each square shows the genotype of the progeny formed as the result of cross between corresponding alleles</span>
3 0
2 years ago
Other questions:
  • In a hydrocarbon's name, what does the suffix –yl indicate about the molecule?
    6·2 answers
  • Q # 6 which of the following equations has correct formulas and also is a balanced equation?
    15·1 answer
  • The answer for #3 is C but I don't know why
    6·1 answer
  • Heat can be transferred from one material to another by direct touch, by differences in density in a fluid, and by ______ conduc
    6·1 answer
  • Which statement best describes gamma radiation?
    10·1 answer
  • Is tar used to manufacture coal tar and coke
    8·1 answer
  • Why is it necessary to find the percent yield of a reaction
    14·2 answers
  • A precipitation reaction 2. A Lewis acid-base reaction the produces a coordination complex: A Lewis acid-base reaction the produ
    15·1 answer
  • Suppose you want to make an acetic acid/acetate buffer to a pH of 5.00 using 10.0 mL of 1.00 M acetic acid solution. How many mi
    8·1 answer
  • Investigation of ions and Separation of Mixtures 1- Propose systematic schemes for the identification of the following salts wit
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!