I'm guessing you mean Oxygen, right?
Percent composition by mass is found by finding the total molas mass of the compound and the mass of oxygen and dividing the mass of oxygen by total mass.
1. The molar mass of Ca(OH)2 is <span>74.0958 amu. There are 2 oxygens, so 16 x 2 = 32 amu.
32 amu/ </span>74.0958 amu = <span>43 % Oxygen
2. </span><span>C6H2O = 18% Oxygen
3. </span><span>K2SO3 = 30% Oxygen
4. </span><span>Li2SO4 = 58% Oxygen
5. This is the only one not having Oxygen but it's 82% Cobalt and 18 % Calcium
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Surface tension is the result of water molecules pulling inward with a strong attractive force.
The attractive force brings the molecules on the surface of the water close together.
The attractive force causes the surface of the water to be drawn toward the water molecules beneath the surface. <span>
Since there are no water molecules above the surface, there are uneven forces. This causes surface tension, allowing the coin to float on the water’s surface.</span>
Answer:
76.25cm
Explanation:
38cm + 56cm +97cm +114cm = 305cm
305cm÷4 = 76.25cm
Answer:
1 and 2 are most likely to happen to the cell if cell membrane doesn't function properly
Explanation:
It is because if cell membrane doesn't function properly then cell will not be able to exchange materials in its surrounding.
Being imaginative in doing science is using your knowledge and creativity to make innovative ideas, while psuedoscience is using sources that are not true and do not use actual science. Example being ads that say "Wow you will not believe what how this oil cured cancer!".
