Answer:
<h3>The answer is 0.73 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 620 g
volume = 850 mL
We have
We have the final answer as
<h3>0.73 g/mL</h3>
Hope this helps you
The answer is the coefficient is "1".
C₅H₁₀, now you see that there is no number with this and when there is no number or digit, it means the coefficient is one.
we use the coefficients to balance the equation of the reaction in such a way that number of the atoms of the elements in the reactants are equal to the number of atoms of different elements in the product, so that both sides are equal and balanced.
Answer:
a. PbO.
Explanation:
- The formula unit of a stable chemical compound should maintain that the overall charge of the compound is zero <em>(not charged)</em>.
- The formula unit of a compound is represented by the lowest ratio numbers of the ions forming the compound.
<em>Choice a:</em> is the right answer PbO
- That lead is divalent cation Pb²⁺ and O is considered as a divalent anion O²⁻.
- So, the formula unit contains Pb:O with a ratio of 1:1 (PbO)
<em>Choice b: </em>is a wrong choice Li₂B
- The lithium cation is a monovalent cation Li¹⁺ and boron is a trivalent cation B³⁺, so we can not do that.
<em>Choice c:</em> is a wrong choice Al₂Pb₃
- that Al is a trivalent cation Al³⁺ and Pb is a divalent cation Pb²⁺, so we can not do this for the two cations.
<em>Choice d:</em> is a wrong choice ClO
- that Cl may act as Cl¹⁺ and O acts as O²⁻, so the right formula unit should be Cl₂O.
Answer:
4.22 g/mL
Explanation:
First we <u>calculate the mass of the solid</u> via <em>mass difference</em>:
- Mass of solid = 9.441 g - 1.005 g = 8.436 g
Then we <u>calculate the volume of the solid</u>, once again by difference:
- Volume of solid = 5.45 mL - 3.45 mL = 2.00 mL
Finally we <u>calculate the density in g/mL</u>:
- Density = 8.436 g / 2.00 mL = 4.22 g/mL
Answer:
Your answer is d
Explanation: silver carbonate Ag2CO3 is insoluble in water