Decomposer, decomposers include fungous, bacteria, worms. They break down trash and bad things and concert it to soil.
Answer is in picture below.
Use 100 grams of the compound:
ω(Cl) = 85.5% ÷ 100%.
ω(Cl) = 0.855; mass percentage of the chlorine in the compound.
m(Cl) = 0.855 · 100 g.
m(Cl) = 85.5 g; mass of chlorine.
m(C) = 100 g - 85.5 g.
m(C) = 14.5 g; mass of carbon.
n(Cl) = m(Cl) ÷ M(Cl).
n(Cl) = 85.5 g ÷ 35.45 g/mol.
n(Cl) = 2.41 mol; amount of chlorine.
n(C) = 14.5 g ÷ 12 g/mol.
n(C) = 1.21 mol; amount of carbon.
n(Cl) : n(C) = 2.41 mol : 1.21 mol = 2 : 1.
This compound is dichlorocarbene CCl₂.
Answer:
3.96 × 10⁻³ mol Pb
Explanation:
Step 1: Find molar mass
Pb (Lead) - 207.2 g/mol
Step 2: Use Dimensional Analysis
= 0.003962 mol Pb
Step 3: Simplify
We have 3 sig figs
0.003962 mol Pb ≈ 0.00396 mol Pb
0.00396 mol Pb = 3.96 × 10⁻³ mol Pb
Answer:
sodium carbonate decahydrate
Explanation:
Usually we would the molar mass of Na2CO3 x 10 H2O. This is where the name comes from.
An everyday item that is made of a metal would be simple utensils like a fork. Forks are made of stainless steel which is made of multiple types of metals. A property of metals is that they are generally solid at room temperature and they are hard. This is a necessary property as if the fork was soft, or not even solid, it would be almost impossible to use.
Nonmetals are species that gain electrons and form ions, and are often electronegative elements. A common nonmetal is oxygen or nitrogen gas that makes up a large percentage of the atmosphere. Nonmetals are generally nonconductors, which means they do not conduct heat or electricity well. This is a necessary property because if the air was a good conductor, all electricity would be unstable and many electronics would simply short circuit or catch on fire.
Metalloids are materials that fall between metals and nonmetals in terms of properties. A common metalloid would be boron which can be found in various types of glass. In this form it has the solid property of a metal and the nonconducting property of a nonmetal. If glass were not solid, it would not be able to hold its form, and if glass were a good conductor of heat or electricity, it would make glass materials more dangerous to work with.
