The numbers of spiders in the house and the outside temperature have an indirect relationship. what will happen to the spiders in the house as the outside air temperature decreases

Why is sodium chloride not a mixture? Why is sodium chloride a compound?

A burning streak of light is called what

The hormone, thyroxine is secreted by the thyroid gland, and has the formula: c15h17no4i4. How many milligrams of iodine can be extracted from 15.0grams of thyroxine?

One difference between mixtures and pure subtances is that

An unknown substance has the composition of 77.87% C, 2.63% H and 55.62% O. The compound has a molar mass of 345.2 g/mole. What is the molecular formula?

How many moles of lithium are in 83 grams of lithium?

Ocean constitutes most of ___ of water a) Evaporation b) Precipitation c) Condensation d) Transpiration e) Sublimation Don't choose a random letter.

In the reaction, Zn + HCl-> ZnCl2 + H2, 25 grams Zn are reacted with 17.5 grams HCl. How many grams of H2 will be produced? A. 0.382 g of H2 B. 0.479 g of H2 C. 0.7865 g of H2 D. 0.484 g of H2

Is nail varnish soluble?

What is the periodic trend for atomic size from top and bottom in a group? From left to right in a period?