Answer:
nickel
It also tells you the number of electrons that the element has in its outside shells. If the atomic number of nickel is 28 then every atom of nickel has 28 protons in its nucleus and 28 electrons outside the nucleus.
Explanation:
Answer: Should be A)
Explanation:
the size of planets effects the amount of gravitational force each planet has, like jupiter, it has the most gravity.
Answer: stars vary in their effective temperature and colour. A hot star radiates more energy per second per metre surface area than a cooler star. Does this then mean that a hot star is going to appear brighter to us than a cooler one? The answer to this actually depends on a few factors
Explanation: pa brainiest po
76.6 litres is the volume of the gas if pressure and temperature changes to STP.
Explanation:
Data given:
Volume of the gas V1 = 15.9 litres
pressure of the gas P1 = 589 kPa or 5.81 atm.
temperature T1 = 56.5 degrees or 329.3 K
Final pressure P2 = 101.3 kPa
Final temperature T2 = 273 K
At STP the pressure is 1 atm or 101.3 kPa and the temperature is 273 K. So from the question the final temperature and pressure is at STP.
from Gas Law:
=
V2 =
Putting the values in the above rearranged equation of Gas Law:
V2 =
= 76.6 Litres
Answer:
The smaller a particles the higher the surface area to volume ratio
Explanation:
In a grain silo, there are lots of minute dust grain particles and chaff floating in the air. The silo is important in keeping the grains dry hence there is little moisture. These particles, when concentrated, are therefore highly combustible and the slightest spartk can cause a spectacular explosion.