CHEMISTRY HIGH SCHOOL

Which is a unique feature of Jupiter? A.
the least dense planet in the solar system

B.
the largest, most massive planet

C.
rotates on an axis tilted entirely sideways

D.
the most distant planet from the sun

Answers

Answer 1
Answer: I would say the answer is A, because Jupiter is the least dense planet in the solar system. It is the largest planet in our solar system, but that is not what answer choice says. Jupiter does not rotate on an axis completely sideways, that is Uranus, and is not the most distant planet from the sun.

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The monoprotic acid from among the following isa. H2CO3.
b. H2SO4.
c. H3PO4.
d. HCl.

Answers

Answer: Option (d) is the correct answer.

Explanation:

An acid which gives only one hydrogen ion or H^(+) ions upon dissociation in an aqueous solution is known as a monoprotic acid.

Whereas when an acid gives two hydrogen or H^(+) ions upon dissociation in an aqueous solution is known as a diprotoc acid.

And when an acid gives three hydrogen or H^(+) ions upon dissociation in an aqueous solution is known as a triprotoc acid.

Therefore dissociation of the given acids in an aqueous solution will be as follows.

  H_(2)CO_(3) \rightarrow 2H^(+) + CO^(2-)_(3)

  H_(2)SO_(4) \rightarrow 2H^(+) + SO^(2-)_(4)

  H_(3)PO_(4) \rightarrow 3H^(+) + PO^(2-)_(4)

  HCl \rightarrow H^(+) + Cl^(-)

Hence, we can conclude that out of the given options, HCl is the monoprotic acid.

Monoprotic acid are acids having only one hydrogen atoms after dissociation into ions from its compound. The monoprotic acid from among the following is HCl. The answer is letter D. HCl → H+ + Cl-. Note that there is only one H+ ion upon dissociation.

Which identifies an oxidation-reduction reaction?a double replacement reaction
a neutralization reaction
a reaction in which oxidation numbers change
a reaction in which no electrons are transferred.

Answers

Answer:

A reaction where oxidation numbers change.

A reduction is when electrons are gained while oxidation is when electrons are lost.

How many grams of nickel 58.69 (No,58.69 g/mol) are in 1.57 moles of nickel

Answers

Answer:

92.1

Explanation:

1.57 * 58.69

If one ball with a momentum of 50 kg·m/s hits a ball at rest and no other forces are acting on either ball, what's the total momentum of both balls after the collision? A. 0 kg·m/s
B. 25 kg·m/s
C. 100 kg·m/s
D. 50 kg·m/s

Answers

Answer:

The answer is (D) 50 kg·m/s   (PF Test)

What is atoms of the same element with varying numbers of neutronsPLEASE HELP WILL GIVE BRAINLIEST AND 30 POINTS

Answers

Answer:

We refer to the atoms of the same element with different numbers of neutrons as "isotopes". While the particular isotope involved does not affect how an atom will react chemically, it does determine how the atom will behave in nuclear reactions.

Explanation:

Answer:

The # of neutrons equal the number of electrons and protons.

Explanation:

Look what I wrote above.

What is the ratio of Al ions to S ions in a neutral compound?

Answers

Aluminum ions are usually +3 while sulfide ions are usually -2 which means that a neutral compound of aluminum sulfide would be Al₂S₃.  3×2=6 while -2×3=-6 and 6+-6=0.

I hope this helps.  Let me know if anything is unclear.
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