CHEMISTRY HIGH SCHOOL

Which elements can form acidic compounds? Check all that apply. sulfur rubidium arsenic selenium silicon xenon antimony

Answers

Answer 1
Answer:

The elements that can form acidic compounds are; sulfur, arsenic, selenium, antimony, silicon.

Acidic compounds are formed by nonmetals. Metallic elements form basic compounds. This means that rubidium does not form acidic compounds since it is a metal.

Also, xenon does not form compounds because it is a noble gas. Noble gases do not react with other elements to form compounds.

However; sulfur, arsenic, selenium, antimony, silicon are nonmetals and they form acidic compounds.

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Answer 2
Answer:

The correct answer is Sulfur, Arsenic, selenium, silicon, and antimony.

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Explain, in terms of both atoms and molecular structure, why there is no isomer of CH3OH.

Answers

Explain, in terms of both atoms and molecular structure, why there is no isomer of CH3OH.

There is no isomer of CH3OH or methanol because it contains only one carbon atom. And also, the structure is tetrahedral, having four substances attached to the carbon atom.

Ernest Rutherford's gold-foil experiment showed which of the following?

Answers

Ernest Rutherford's gold-foil experiment showed the density of atoms.
The experiment proved that most of an atom is empty space with a very small positively charged nucleus in the middle. 
So, from the given statements he following is true: 
Ernest Rutherford's gold-foil experiment showed the existence of a dense, positively charged center in an atom. 

The amount of heat transferred from an object depends on which of the following?a. the specific heat of the object
b. the initial temperature of the object
c. the mass of the object
d. all of the above

Answers

The amount of heat transferred from an object depends on all of the above".

What is the amount of heat?

The amount of heat is the amount of energy required to convert one unit mass of a constant volume substance by one degree Celsius.

The heat transported to or from a substance is determined by three factors: the change in temperature of the substance, its mass, and certain physical parameters related to the phase of the substance. The energy required to change the temperature of a substance or object is measured by specific heat and heat capacity. The amount of heat received or emitted by a substance is directly proportional to its type, mass, and temperature change.

Hence the correct answer is d.

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D. All of the above!

When calculating for the amount of heat in an object, you use the following formula:

q = c x m x ΔT

q = amount of heat or heat
c = the specific heat 
m = the mass
ΔT = the initial temp.

Is an isotope more or less stable the longer the half life?

Answers

Answer Can someone here please look at my questions and see if you can help

Which solution reacts with LiOH(aq) to produce a salt and water?(1) KCl(aq) (2) CaO(aq) (3)NaOH(aq) (4)H2SO4(aq)

Answers

The answer is (4) H2SO4. The LiOH(aq) is a kind of base. The solution which can react with base and produce a salt and water is acid. Among the choices, only H2SO4 is acid.

What is name of HOPBr2 ?

Answers

HOPBr₂ = dibromophosphinous acid

hope this helps!
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