When waters salinity increases it’s freezing point will decrease. This is one of the reasons why people salt the roads after a snow storm.
The answer is 8.13 x 10²⁸ atoms.
First
we calculate the number of moles using
the molar mass.
molar mass of helium = <span>4 g/mol. </span>
<span>
it means that 1 mole of helium atoms weighs 4 gram.</span>
Now we have 540 kg of helium =540000 grams
Number
of moles in 540000 grams;
540000 / 4 =135000 mol
Now in one mole there is 6.02 x 10²³ atoms
So, in 135000 mol there is;
135000 x 6.02 x 10²³ = 8.13 x 10²⁸atoms
Answer:
atoll
Explanation: this is correct, pls give me brainliest
4.002602 u
Being one of the lightest elements in the world, Helium has an atomic mass of 4.0026 u. u means Unified Atomic Mass Units. 1 u equals to the mass of 1/12 of the mass of a 12C ( Carbon - 12 ) isotope.
Answer:
Explanation:
Magnetic fields can be measured in various ways. If this device, called a dip meter, is first aligned in the direction of the magnetic meridian as defined by a compass, the needle lines up with the total field vector and measures the inclination angle I