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3 years ago

Identify each property below as more characteristic of a metal or a nonmetal.

2 answers:

6 0

Metal is a solid material which is basically hard and non metal is which don't show properties of metals
following are properties of metals and non metals
Metals are
shiny,melleable and good conductor of electricity
Nonmetals
gas at room temperature,brittle.poor conductor of electric current
hope it helps

Romashka [77]3 years ago

5 0

A. Nonmetallic
B. Nonmetallic
C. Metallic
D. Nonmetallic
E. Metallic

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Uses of carbon dioxide.

andrey2020 [161]

Answer:

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Explanation:

used in fire extinction, blasting rubber, foaming rubber and plastic

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3 years ago

An interplanetary probe returns to Earth with soil samples. The atoms in the sample are sorted by their number of protons. A new

Leya [2.2K]

Answer is: the average atomic mass is 232.

ω₁ = 20% ÷ 100%.

ω₁ = 0.20.

ω₂ = 80% ÷ 100%.

ω₂ = 0.80.

Ar₁ = 120 (number of protons) + 120 (number of neutrons).

Ar₁ = 240.

Ar₂ = 120 + 110 .

Ar₂ = 230.

Average atomic mass of atoms of bolognium =

Ar₁ · ω₁ + Ar₂ · ω₂.

Average atomic mass of atoms of bolognium = 240 · 0.2 + 230 · 0.8.

Average atomic mass of atoms of bolognium = 48 + 184.

Average atomic mass of atoms of bolognium = 232.

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3 years ago

Modify the given fatty acid so that it represents the 18‑carbon fatty acid designated 18:2(Δ9,12). Draw any double bonds in the

Mekhanik [1.2K]

Answer:

See explanation

Explanation:

In this case, we have to remember the meaning of the nomenclature "18:2Δ9,12". Where 18 is the number of carbon atoms, 2 is the number of double bonds, and the numbers successive to Δ "delta" the position of the double bonds starting to count from the carboxylic -COOH end of the molecule.

In other words, the main functional group is a carboxylic acid. We have a total of 18 carbons. Additionally, we have 2 double bonds. On carbons 9 and 12.

Lets see figure 1

I hope it helps!

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3 years ago

Limitation for osmosis experiment

taurus [48]

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2 years ago

The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.71 10−8 L/mol/s. What is the instantaneou

pochemuha

Answer: Rate of decomposition of acetaldehyde in a solution is $1.45\times 10^{-14}mol/Ls$

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

For a reaction : $A\rightarrow products$

$Rate=k[A]^x$

k= rate constant

x = order of the reaction = 2

$Rate=4.71\times 10^{-8}L/mol/s\times {5.55\times 10^{-4}M}^2$

$Rate=1.45\times 10^{-14}$

Thus rate of decomposition of acetaldehyde in a solution is $1.45\times 10^{-14}mol/Ls$

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3 years ago