Answer:
Red litmus paper turns blue in the presence of a base
Red litmus paper turns red in the presence of a acid
Answer:
Like charges repel
and opposite charges attract each other
lonic bonds are formed when ions attract
each other
Explanation:
An electrical charge can be either positive or negative. Two positive charged atom can never combine as they experience strong nuclear repulsive force Like wise two negatively charged atom can never combine as they repel each others negative electrostatic field.
An ionic bond is formed between two atoms in which one is electron deficient and other has surplus electron.
The atom with surplus electron is negatively charged and the atom with deficient electron is positively charged and thus these two oppositively charged atoms attract each other
Answer:
Aerosol cans carry warnings on their labels that say not to incinerate (burn) them or store the cans above a certain temperature. This problem will sho why it is dangerous to dispose of aerosol cans in a fire. The sa in a used aerosol can is at a pressure of 103 kPa at 25℃.
Hope this helps!!
Good luck!
Answer:
Percent yield = 89.1%
Explanation:
Based on the equation:
Cl₂ + 2KI → 2KCl + I₂
<em>1 mole of Cl₂ reacts with 2 moles of KI to produce to moles of KCl</em>
<em />
To solve this quesiton we must find the moles of each reactant in order to find the limiting reactant. With the limiting reactant we can find the moles of KCl and the mass:
<em>Moles Cl₂:</em>
8x10²⁵ molecules * (1mol / 6.022x10²³ molecules) = 133 moles
<em>Moles KI -Molar mass: 166.0028g/mol-</em>
25g * (1mol / 166.0028g) = 0.15 moles
Here, clarely, the KI is the limiting reactant
As 2 moles of KI produce 2 moles of KCl, the moles of KCl produced are 0.15 moles. The theoretical mass is:
0.15 moles * (74.5513g / mol) =
11.2g KCl
Percent yield is: Actual yield (10.0g) / Theoretical yield (11.2g) * 100
<h3>Percent yield = 89.1%</h3>
Answer:
c-hydrolysis
Explanation:
because hydrolysis is any chemical reaction in which a molecule of water ruptures one or more chemical bonds, this happens with the carbohydrates we eat
