Chemistry questions serious inquiries only! 39 questions. chemistry

Homework Paper Help

Module Two Assignment

Elements

Instructions: Using the periodic table, answer the following questions about elements.

What is the atomic number for Carbon?
What is the chemical symbol for Tungsten?
What is the atomic number for Zirconium?
What is the atomic number for mercury?
What element has the symbol Ag?
What element has the symbol Hf?
What is the atomic number for Gallium?

Atoms and Ions

Instructions: Answer the following questions regarding ions losing and gaining electrons.

How many electrons does chlorine need to gain to become an ion? Will it become a positively charged cation or a negatively charged anion?
How many electrons must nitrogen gain to become like its closest noble gas, Neon?
What are valence electrons?

Instructions: Answer the following questions about isotopes.

Given that the mass number for carbon is 13, how many protons and how many neutrons does the isotope contain?
Hydrogen has two naturally occurring isotopes: hydrogen-1 and hydrogen-2. What is the symbol for each of these hydrogen isotopes?
How many neutrons are contained in nitrogen-15?
How many protons does Cobalt-57 contain?

Atomic Mass

Instructions:

Find the atomic mass unit of Sulfur-32 with a mass of 31.972 and percent abundance 94.99%, Sulfur-33 with a mass of 32.971 and percent abundance 0.75%, Sulfur-34 with a mass of 33.968 and percent abundance 4.25%, and Sulfur-36 with a mass of 35.967 and percent abundance 0.01%.
Find the atomic mass unit of Silicon-28, Silicon-29, Silicon-30 with masses of 27.977, 28.976, 29.974, respectively. The percent abundance of the silicon isotopes is 92.2%, 4.7% and 3.1%, respectively.

Periodic Table and Its Trends

Instructions: Answer the following questions regarding the periodic table, the Bohr Model, and electron configuration.

Explain periodic table.
What is the Bohr Model? Provide a summary in your own words.
What is the electron configuration of Potassium?
What is the electron configuration of oxygen?
How many valence electrons does Sulfur(S) have?

Molecules and Compounds

Instructions: Find the mass ratios and atomic ratios of the following compounds.

CI2O7
SbF5
NH3
BaI2
S2Cl2
OsO4

Instructions: Write the formula for each of the following ionic compounds.

Sodium chloride
Zinc chloride
Ammonium chloride
Potassium hydroxide
Calcium Nitrate

Instructions: Name the following ionic compounds.

MgCl2
CaCl2
CuSO4
Al2O3

Instructions: Name the following molecular compounds.

Cl2O7
PCI5
SiI4
NI3

Instructions: Write the formulas for the following molecular compounds.

Sulfur hexafluoride
Sulfur dioxide
Dinitrogen trioxide
Carbon tetrachloride

Continue to order Get a quote

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Custom-written and plagiarism-free papers: Our authors create their work from scratch. Before presenting them to clients, we routinely verify them for signs of plagiarism. Our quality assurance group also double-checks and fixes any grammatical errors, assuring that all of our authors adhere to the same standards of writing.
The significance of timely delivery cannot be overstated, and we consistently strive to meet or exceed our clients' deadlines. Regardless of the short time frame, you can count on our writers to get the job done. We always have a team of writers ready to go, even if the deadline is only six hours away.
Customer Satisfaction: Our customer service representatives are the best in the business and have a wealth of knowledge in dealing with clients. All our customer service representatives are trained to listen and reply promptly until you are satisfied with their service. To ensure you're happy, our expert writers will strictly follow the criteria to generate a special report. Our customer service may be contacted by chat, email, or phone. In addition, we provide round-the-clock assistance to all of our clients.
Confidentiality: Our systems are safe, and your information is always protected. We're constantly looking for new facts when it comes to finishing your work. We use a safe and secure payment channel. Since our ordering process is completely anonymous, you don't have to provide any credit card information to place a purchase with us.
Highly Trained Authors: Our writers have received extensive training and are committed to delivering only the best papers. They are fluent in APA, MLA, HARVARD, IEEE, CHICAGO, and AMA referencing styles. To meet your expectations, our skilled writers always pay close attention to your instructions.
Lowered prices: We have set prices that are already discounted. Our prices are the best and affordable for all our esteemed customers.