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
mestny [16]
3 years ago
12

One naturally occurring reaction in a radioactive decay process is nitrogen-12 (atomic number 7) decaying into carbon-12 (atomic

number 6) plus an unknown particle. what is the atomic number of this unknown particle?
Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
_{7}^{12}N --\ \textgreater \  _{6}^{12}C + _{+}^{0}e
You might be interested in
How many atoms are in 0.909 moles of silver?
BabaBlast [244]

Answer:

5.47 x 10^23 atoms in Ag (sliver)

Explanation:

0.909 mol of Ag x 6.02 x 10^23 atoms of Ag/ 1 mol of Ag

8 0
3 years ago
A watt is a unit of power or energy per unit time (1 W = 1 J/s). A semiconductor laser in a CD player has an output wavelength o
GREYUIT [131]

Answer:

n = 2.208x10¹⁸ photons

Explanation:

The energy of a photon( an elementary particle) is given by the equation:

E = nxhxf

Where n is the number of photons, h is plank constant (6,62x10⁻³⁴ J.s), and f is the frequency. Knowing that the power level is 0.120mW (1.2x10⁻⁴ W), the energy in J, for a time of 78 min (4680 s)

E = 1.2x10⁻⁴x4680 = 0.5616 J

The frequency of a photon is its velocity ( c= 3x10⁸ m/s) divided by its wavelength, which is 780 nm = 780x10⁻⁹ m

f = 3x10⁸/780x10⁻⁹

f = 3.846x10¹⁴ s⁻¹

Then, the number of photons is:

0.5616 = nx6,62x10⁻³⁴x3.846x10¹⁴

n = 2.208x10¹⁸ photons.

5 0
3 years ago
_____ Ni(OH)2 + _____ H2(SO4) → _____ Ni(SO4) + _____ H2O this is balancing chemical equations I need help fast
weqwewe [10]
Ni(OH)2+H2SO4=NiSO4+2H2O
Double Replacement Reaction
5 0
3 years ago
ILL BRAINLIST!!
FrozenT [24]

Answer:

In 1859, European rabbits (Oryctolagus cuniculus) were introduced into the Australian wild so that they could be hunted. ... These rabbits are extremely adaptive, which has played a role in their spread across the Australian continent. All the rabbits need is soil that is fit to burrow and short grasses to graze on.

8 0
3 years ago
Which of the following compounds has a lower boiling point?<br> Li2O<br> H₂O<br> KCI<br> MgCl2
Kamila [148]
Pretty sure it’s H2O
6 0
3 years ago
Other questions:
  • How many grams of Ba3P2 are in 234 moles of Ba3P2
    14·1 answer
  • When aqueous solutions of MgSO4 and Na2CO3 are mixed, does a precipitate form, and if yes, what is it?
    13·1 answer
  • Select all (there's more than one) of the below chemicals that would be insoluble in water.
    9·1 answer
  • Which statement about a reaction is not correct?
    13·1 answer
  • In an electrically neutral atom, the number of
    12·2 answers
  • Why is one side of the moon called "the dark side of the moon"?
    13·1 answer
  • Calculate the density of an object with a mass of 7.481 g and volume of 6.9 mL.​
    6·1 answer
  • How do the bonds in a nitrogen gas molecule differ from the bonds in hydrogen and oxygen gas molecule?
    5·1 answer
  • Give me an example of electrons. in your own words.
    10·1 answer
  • Help please!!!!!!!!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!