if an element,X, can form an oxide that has the formula X2O3, then element X that would most likely be located on the Periodic Table in the group as?

Answers

Answer 1

Answer: Since oxygen as -2 charge, and there are three of it in the compound, this makes a total of a -6 charge. So you will need a positive cation that when you double its charge, you get a +6 charge. The cation would then have to have a +3 charge and those are found in group 3

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How do the mass number and charge of a nucleus change when it emits a gamma ray

Answers

Hi There!

How do the mass number and charge of a nucleus change when it emits a gamma ray?

The charge doesn't change as a result of emitting a photon (which is what a gamma ray is). The mass does change by a small amount (due to the energy-mass equivalence relationship; a photon has no rest mass, but does have energy), but not by enough to make any real difference in the mass number.

Hi,Mykayla647!
The mass number and charge do not change because Gamma rays have no charge or mass.
I hope this helps;)

How many hydrogen atoms are represented in the formula (CH3)2CH2?

Answers

There are 7 hydrogens in that formula

There are 8 hydrogens.

There are 3 within the bracket, but this is reoeated twice, giving a total of 6 for that section of the molecule.
At the end of the molecule there are two more hydrogen atoms, taking the total for the molecule to 8.
(3x2) + 2 = 8

Which element has the greatest electronegativity?a. Chlorine
b. Oxygen
c. Sulfur
d. Phosphorus
e. Fluorine

Answers

Fluorine has the highest. Fluorine's electronegativity is 4.0

If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)¿?

Answers

2x14.01 =28.02
ans is B

A farmer had an accident and spilled a chemical into his pond. Several days later, he notices many dead frogs around the pond. That summer, the number of gnats around the pond was higher than ever. This is becausea. the chemical is good for the gnats.
b. the frogs are a limiting factor for the gnats.
c. the gnats are a limiting factor for the frogs.
d. the chemical is a limiting factor for the gnats.

Answers

Answer:

The correct answer is option b.

Explanation:

A limiting factor or limiting reagent is a compound of reactant which gets used up first and effects the formation of product in a chemical reaction.

Around the pond frog would be feeding on gnat, and due to their presence population of gnats were in control .But due to accidental spilling of chemical in pond resulted in death of frogs. Which were actually responsible for less population of gnats around the pond but due to dead action of chemical on them (frogs) their population in pond declined due to which increase in population of gnats was observed.

On generalizing this fact:

Higher the population of frogs lower will be the population of gnats.
lower the population of frogs higher will be the population of gnats.

So, from this we can conclude that frogs are the limiting factors for the gnats as more the number of frogs lessor will be number of gnats.

b. the frogs are a limiting factor for the gnats
the frogs limit the reproduction of the gnats, and therefore with less frogs the gnat population can increase

How many atoms of each element are in citric acid C₃H₄OH(COOH)₃?

Answers

Simplify

C3H4OH(COOH)3
C3H4OHC3H3O6
C6H8O7

6carbon

8Hydrogen

7Oxygen

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