Answer:
co is colbalt
Explanation:
Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27.
Answer:
1.0625 g
Explanation:
Number of moles in 5g of NH4NO3 = 5.0g/80g/mol = 0.0625 moles
Again the balanced reaction equation is;
NH3 + HNO3 → NH4NO3
So,
1 mole of NH3 yields 1 mole of NH4NO3
x moles of NH3 yields 0.0625 moles of NH4NO3
x = 0.0625 moles of NH3
Mass of NH3 = number of moles * molar mass
Mass of NH3 = 0.0625 moles * 17g/mol
Mass of NH3 = 1.0625 g
Answer:
0.0055 seconds
Explanation:
To answer this question you need to know the equivalence:
1 second (s) = 5.5 (miliseconds) (ms)
Then you use the conversion factor:
-Put the value given and the units:

- Put in the denominator the equivalence with the same units:

- Put in the numerator the unit at which you want to convert the value given:

- Then multiply and divide the quantities:

Note that the same units in numerator and denominator are cancelled.
Wavelength because it is shorter