The nucleus of an atom X contains 15 protons and 16 neutrons. a) Determine the number of electrons of this atom.

Answers

Answer 1

Answer:

Final answer:

The atom X has 15 electrons.

Explanation:

The number of electrons in an atom is equal to the number of protons. Since the atom X has 15 protons, it also has 15 electrons.

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Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. What tool will she use next?

Answers

Gloria is writing thechemical formula for a compound using its chemical name. She has justidentified the names of the elements in the compound. The tool that she willneed to use next is a textbook to learn the IUPAC naming of compounds or ahandbook of chemical compounds.

Answer:

the periodic table

Explanation:

verified correct

An aqueous solution has a hydroxide-ion concentration of 1.0 x 10-3M. What is the pH of the solution? a 7
b -3
c 11
d 3

Answers

11 with pemdas, you have to multiply all by 3

The materials created from a chemical reaction are called

Answers

Answer: The chemical species formed in a chemical reaction are products.

Explanation:

In a chemical equation, the chemical species are called as reactants or products.

Reactants are defined as the chemical species that react in the reaction and are written on the left side of the reaction arrow.

Products are defined as the chemical species that are produced in the reaction and are written on the right side of the reaction arrow.

For Example: Formation of water from hydrogen and oxygen gases, the equation follows:

$2H_2(g)+O_2(g)\rightarrow 2H_2O(l)$

The chemical species $H_2\text{ and }O_2$ are termed as reactants and $H_2O$ is termed as products.

Hence, the chemical species formed in a chemical reaction are products.

the answer would be products

Explain, in terms of atomic structure, why the radius of an Na atom is larger than the radius of an Na+ ion.

Answers

In a Naatom, there are 11 protons controlling 11 electrons by electrostatic attraction. In Na+ there are 11 protons controlling 10 electrons (you lost one to give Na+), so they can pull them in tighter!!

What is the nuclear equation for the alpha decay of 173 Yb?

Answers

Yb 173 turns into Er 169 after alpha decay. you can find that by knowing an alpha particle is basically a helium nucleus with 2 protons and 2 neutrons. That means that Yt 173 loses 2 protons and 2 neutrons when undergoing alpha decay.

Of these four liquids, which is the most viscous? A. H2O. . B. CCl4. . C. C2H12O6. . D. Hg

Answers

Of these four liquids, which is the most viscous?

Answer: Out of all the options presented above the one that is the most viscous liquid is answer choice D) Hg. Mercury has a Dyn. viscosity of 1.55 mPa·s. This liquid is often used for thermometers, barometers, manometers and many other devices.

I hope it helps, Regards.

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