Atomic Mass Numbér of Number of Name Symbol Charge number Number neutrons Electrons hydrogen-2 2H 2. 1 1 3H sodium-22 22Na* 10 12 24 12

Q: True or False. Acetone and alcohol can be used by the human body as energy sources even though in…

A: Exploring the metabolic processes of the human body raises the subject of the use of acetone and…

Q: density of irregular solid mass of irregular solid 9.039 g initial volume 68 mL final volume 74…

A: Given , Mass of irregular solid = 9.039 g Initial volume = 68 mL Final volume = 74 mL Total volume…

Q: Which of the following are chemical changes?         mold Distillation of Salt Water Cutting Fabric…

A: In chemical changes two or more substances combine to obtain a new substance which is totally…

Q: A) It has a covalent double bond.

A: Iodine is 17th(VIIA)group element• it has 7 valence shell electrons• So required single electron to…

Q: how do you convert 50 microliters to dekaliters using dimensional analysis

A:

Q: Drag and drop each term to correctly complete the prompt. Compounds are formed when two or more…

A: Element and compounds are defined based on the composition of atoms. Based on the composition of…

Q: Two samples have the exact same melting points. Are they the same compound? How could you tell for…

A: Given that  The two samples have the same melting point.

Q: Calculate mass recovered.  Calculate percent recovery.  initial mass: 2.09 g watch glass + filter…

A: The question is based on the concept of experimental calculations. we have to calculate mass…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: A theoretical plate is: the theoretical glassware it takes to distill a specific mixture. an…

A: We need to find what is a theoritical plate.

Q: 17. You have 41 mL L of graduated cylinder, it now reads 77 mL. What is the volume of the pebble?

A: Initial water level=41mL Water level after dropping pebble=77mL

Q: A liquid in the lab has a density of 1.24 g/cm. What is the mass in grams of 254 mL of the liquid?…

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of a…

Q: Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get…

A: In chemistry, compounds are classified as solid, liquid, or gas based on their physical and chemical…

Q: Every year Jeff Bezos sells 5 billion dollars worth of Amazon stock to fund his commercial space…

A: 5 billion dollars = 5,000,000,000 dollars I had a job making 250 dollars an hour So, total hours I…

Q: Briefly define the phrase “fit-for-purpose” in relation to analytical chemistry.

A: It is an ideal standard in analytical chemistry to obtain data of suitable quality. Both analysts…

Q: nisd.net/common-asses NaCl and SiO₂ Type of Matter: Property: Technique: SiO₂ Type of Matter: Fe…

A:

Q: What is the mass, in g, of 2.67 × 10 nickel (Ni) atoms? Enter your answer in scientific notation. 12…

A: The given data contains, Atoms of nickel = 2.67×1012 Molar mass of Nickel = 58.69 g/mol.

Q: Is it supposed to be 10^-14 which would equal 13.4 or 10^24 which equals 23.4?

A: Given :  Kw at 50°C = 3.95 × 10-14

Q: The U.S. Government has about 1.23 * 107 pounds of gold in Fort Knox. How much is it worth at…

A: 1.23 X 107 pounds of gold = 12 X 1.23 X 107 Toz = 14.76 X 107 Toz

Q: (4) NHẠC|(s) → NH318) + HC\6) ΔΗ4? Solid ammonium chloride sublimes (i.e., changes from a solid to a…

A: To find out the enthalpy of sublimation and decomposition of ammonium chloride in terms of the…

Q: A mixture of 200.5 g of Cl, and 43.8 g of P reacts completely to form PCl, and PCI,. Find the mass…

A:

Q: In the copper experiment, a copper wire For the toolbar, press ALT+F10 (PC) or

A: Copper is dissolved in nitric acid

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: The study of detecting small quantities of substances in samples would most likely be performed by a…

A:

Q: Chemical properties include (choose the best answer) Melting and boiling point Density O Reactivity…

A: When two or more substance reacts with each other to form a new substance having different…

Q: Blue beads (Al): Yellow beads (S): Green beads (0):

A: FORMULA Al2 (SO4 )3 Al=2 atoms S=3 atoms O= 12 atoms     blue beads Al= 2 yellow beads S=3 green…

Q: Please

A: Molar mas sof Compound is calculated by multiplying index with each element mass and then add all…