All categories

3 years ago

Because metallic bonds permit one plane of ions to slide past another without breaking bonds, metals are:_______

Chemistry

1 answer:

solniwko [45]3 years ago

8 0

Answer:

D. poor conductors of electricity.

Explanation:

You might be interested in

Which of the following are examples of compounds? CO2 H2O С Au

Artyom0805 [142]

CO2 and H2O are compounds hope this helped :)

7 0

3 years ago

Read 2 more answers

Write the isotopic symbol for the following (show your work) a) An isotope of iodine whose atoms have 78 neutrons b) An isotope

morpeh [17]

Answer:

For a: The isotopic representation of iodine is $_{53}^{131}\textrm{I}$

For b: The isotopic representation of cesium is $_{55}^{137}\textrm{Cs}$

For c: The isotopic representation of strontium is $_{38}^{52}\textrm{Sr}$

Explanation:

The isotopic representation of an atom is: $_Z^A\textrm{X}$

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

For a:

We are given:

Number of neutrons = 78

Atomic number of iodine = 53 = Number of protons

Mass number = 53 + 78 = 131

Thus, the isotopic representation of iodine is $_{53}^{131}\textrm{I}$

For b:

We are given:

Number of neutrons = 82

Atomic number of cesium = 55 = Number of protons

Mass number = 55 + 82 = 137

Thus, the isotopic representation of cesium is $_{55}^{137}\textrm{Cs}$

For c:

We are given:

Number of neutrons = 52

Atomic number of strontium = 38 = Number of protons

Mass number = 38 + 52 = 90

Thus, the isotopic representation of strontium is $_{38}^{52}\textrm{Sr}$

3 0

3 years ago

In 1787,_________discovered a relationship between charge, their separation, and the force between the two charges. A coulomb B

masya89 [10]

The answer is A. Columb

Columb discovered a relationship between charge, their speration, and the force between the two charges in 1787

7 0

3 years ago

In three different experiments, the following results were obtained for the reaction

faust18 [17]

From the given observations,
You can see that as the concentration is doubled, half-life is halved.

That is,half-life is inversely proportional to concentration

As t( half-life) ~ 1/a^(n-1)

For this case n = 2,second order reaction.

R = k X a^n

Using the above formula you will get the rate and rate constant.

5 0

4 years ago

True or false. All mollusks are cemented permanently to the ground

monitta

Answer:

False

Explanation:

Mollusks are living organisms that can move around often, like mussels and clams, and oysters.

4 0

3 years ago

Read 2 more answers