Answer:
For CO2 there is one atom of carbon and two atoms of oxygen.
Explanation:
Answer:
319.3g Cu2S
Explanation:
There is 127.1 g Copper in 159.16g (molar mass) of Cu2S. Let x be Cu2S required. Then x * (127.1/159.16) = 255.0g. So x = 319.3g
<span>C) <u>Colloids</u></span><span>
Colloids have small non-dissolved particles that flow around in the mixture. These particles do not settle over time. When a light is shined on colloids the scattering characteristic of the Tyndall effect are visable.</span>
<h3>
Answer:</h3>
0.5 moles KF
<h3>
Explanation:</h3>
Mass of the compound = 29 g KF(Potassium chloride)
We need to get the moles of KF
Moles are given by dividing the mass of a compound by its molar mass.
In this case,
Molar mass of potassium chloride = 58.0967 g/mol
Therefore;
Moles = 29 g ÷ 58.0967 g/mol
= 0.5 moles
Therefore, 29 g of KF contains 0.5 moles