Answer:
The density of the block is 2.827 grams/ cubic inch
Explanation:
The density of the block can be obtained by dividing the given mass of the block by its volume.
Density = mass / volume
The mass of the block given is 435.5 grams
The volume of the block can be obtained by using the formula:
Volume = Length X breadth X height
Volume = 3.5 X 8 X 5.5 = 154 
There fore the density will be 435.5 / 154 = 2.827 grams/ cubic inch
The number of moles hydrogen produced when 6 moles of sodium are used is calculated as below
2Na + 2H2O = 2NaOH +H2
by use of mole ratio between Na to H2 which is 2:1 the moles of H2 is therefore
= 6 x1/2 = 3 moles of H2
Answer:
Explanation:
The spectator ions are the ions that are on both sides of the equation.
They are present at the beginning and at the end of the reaction. They don't take part in the reaction. They are simply "spectators" watching the other ions "do their thing."
Answer:
Diabetes is a group of diseases that affect how your body uses blood sugar (glucose). Glucose is vital to your health because it's an important source of energy for the cells. Cells are everywhere including the blood, bones and muscles. When you have diabetes, you don’t have enough insulin in your blood (an organ in your body called the pancreas makes insulin). Insulin controls the movement of blood sugar into the cells of the body.
Explanation:
The only correct statement among the options as they are listed is that; A solute dissolves in a solvent to make up a solution (Option B)
<h3>What is a solution?</h3>
A solution is composed of a solute and a solvent. The solute is the solid that is dissolved in the solvent while the solvent is the medium in which the solid is dissolved.
Given that the solute can be a solid, liquid or gas, a solution could be homo--genous or het--erogenous as the case may be.
Thus, the only correct statement among the options as they are listed is that; A solute dissolves in a solvent to make up a solution (Option B)
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