The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.
<h3>What is momentum?</h3>
Momentum can be defined as the product of mass and velocity. The S.I unit of momentum is kgm/s.
The initial momentum of the boy can be calculated using the formula below.
Formula:
Where:
- M = Initial momentum of the boy
From the question,
Given:
- M = mass of the boy = 60 kg
- U = Initial velocity of the boy = 0 m/s (at rest)
Substitute these values into equation 1
Hence, The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.
Learn more about momentum here: brainly.com/question/7538238
The water of hydration is not covalently bound to the compound.
Many compounds, especially ionic compounds contain molecules of water of hydration which appears as part of the chemical formula of the compound.
This water of hydration is only attached to the crystal of the compound loosely. There is no chemical interaction between the water molecules and the crystal of the compound.
To prove this, the water of hydration is easily driven off by heating. It wouldn't have been possible to drive it off by heating if was covalently bonded to the compound.
Therefore, the water of hydration is not covalently bound to the compound.
Learn more: brainly.com/question/919417
Answer:
2.77495 moles
Explanation:
Boron= 10.811g (according to periodic table)
I think the compound that has the highest boiling point is CCl4
This is because it has four Carbon-Chloride bonds , while the others have three, two and one and Carbon-hydrogen bonds.
Carbon-Chloride bonds are stronger compared to the Carbon-hydrogen bond, therefore in this case the compound with more C-Cl will have more boiling point.
Answer: d=2.165 g/cm3
Explanation:Due to the nature of it being cubed we can calculate such equation with the mass being 45 grams in which we get 2.165 grams per cenimeter cubed
