Why did mendeleev not order the periodic table by equal rows and columns

If two substances combine to form a new substance with different properties it is called

Explain how wind is connected to convection and radiation.

Natural gas is a mixture of many substances, primarily CH₄, C₂H₆, C3H8, and C4₄H₁₀. assuming that the total pressure of the gases is 1.48 atm and that their mole ratio is 04 : 4.0 : 1.5 : 0.

Rank the following quantities from smallest to largest: 5,200, dozen, pair, gross, ream.

When a scientific theory has been tested and proved by the scientific community, it becomes a law

A flask contains 0.83molof neon gas at a temperature of 35°C. The pressure gauge indicates 0.37atm inside the flask. What is the volume of the neon gas?

Why would it be unwise to take a hot air balloon ride in the upper atmosphere? (The chapter is about Pressure)

Unit conversions. (a) Convert 10,000 dynes to units of lbm ∙ ft/s^2 and lbf (b) Convert 0.2 atm to units of Kpa and lbf/in^2 (c) Convert 37 °C (physiological temperature) to units of °F and K. (d) Convert 50 in 2 ∙ lbm/s^2 units of joules and cal.

How much CO2 is produced from 10g of CH4?

Balance the following redox reaction in acidic solution. Zn (s) + MnO-4 (aq) → Zn+2 (aq) + Mn+2 (aq)