How many protons and electrons does an osmium atom have? a niobium atom?

Which statement is not true about oxygen-17 and oxygen-18 (A) they have the same number of protons. (B) their atoms have an identical mass. (C) They are isotopes of oxygen. (D) they do not have the same mass number

Determine the number of moles of 300 g of Molybdenum (VI) oxide.

What binary compound would be formed from barium ions and fluoride ions?

Which of the following is not equal to 63 meters? 0.063 km 0.63 dkm 6,300 cm 63,000 mm

Select the correct answer. Haley rubs a cotton cloth along a plastic strip. The plastic strip becomes positively charged. Why did this happen?

This reaction describes cellular respiration. C6H12O6 + 6O2 → 6CO2 + 6H2O Which compounds are the reactants and which are the products? A. reactants: C6H12O6 + 6O2 products: 6CO2 + 6H2O B. reactants: 6CO2 + 6H2O products: C6H12O6 + 6O2 C.

Name two properties that display periodicity across the periodic table.?

Which characteristics is not a characteristic of plastic? A. Easy to mold B. Good conductor of heat C. Lightweight and durable D. Repels water.

During a test trial, the control and test group are both given a pill. To account for the effect patients may think the drug being tested is having just because they believe they're being treated, the control group is given a "sugar pill," which is

The ir spectrum of which type of compound will not show evidence of hydrogen bonding?