An atom has atomic number 92 and mass number 238. Which of these is an isotope

of this atom?

a. 235U

92

b. 238Th

91

c. 92Nb

41

d. 92X

235

A compound is found to contain 47 percent potassium 14.5 percent carbon and 38.5 percent oxygen by the way the molar mass of the compound is 166.2 g what is the molecular formula

Trioxygen pentacarbide

When you hear the word solution, you tend to think of a liquid. However, a solution can be a homogeneous mixture of any phase. These two questions are about a solid solution that has properties of a metal.

What is the direct function of the energy released from the nuclear chain reaction in a nuclear power plant? turning the blades of the turbine heating water to produce steam powering the condenser carrying electricity from the plant to consumers

A balloon containing 0.10 moles of gas has a volume of 2.0 liters. If temperature and pressure remain constant, what will be the new volume when 0.40 moles of gas are added to the balloon? 0.50 L 1.0 L 6.0 L 8.0 L

Which of the following statements about rock and mineral resources is true

What are similarities between opinion based research and observation based research

What does your circulatory system transport?

What are the chemical components of a dna molecule?

Which type of reaction is described by the following equation? Na2O (s) + 2CO2 (g) + H2O (g) produces 2NaHCO3 (s)