Potential Energy(PE)= mass * gravity * height
=0.95 * 10* 3.0
=28.5 joule
<u>Answer:</u> The unbalanced chemical equation is written below
<u>Explanation:</u>
Unbalanced chemical equation does not follow law of conservation of mass.
In an unbalanced chemical equation, total number of individual atoms on the reactant side will not be equal to the total number of individual atoms on the product side.
The chemical equation for the formation of ozone gas from oxygen gas:

Hence, the unbalanced chemical equation is written above.
Answer=4
A solution is a mixture of substances
Answer:
They have the same number of atoms. = YES
They have different masses. = YES
Explanation:
1 mol of beryllium
• 1 mol of salt
beryllium = Be = Atomic mass: 9.012182
salt = NaCl = Molar mass: 58.44 g/mol
1 mol of water
• 1 mol of hydrogen
water = H2O = Molar mass: 18.01528 g/mol
hydrogen = H = 1g/mole
Which statement is true about these substances?
They have exactly the same mass. = NO
They have different numbers of particles = NO
They have the same number of atoms. = YES
They have different masses. = YES
Avogadro constant means the number of units in one mole of any substance (defined as its molecular weight in grams) is equal to 6.02214076 ×
.
D. I or Iodine
This is because they are both in the same periodic family (the halogens) and thus the number of valence electrons are the same