Which subatomic particle is not found at the center of the atom?

a. electron

b. neutron

c. nucleus

d. proton

Hydrocarbons consist mostly of carbon atoms bonded to helium atoms. true false

A shining metal M, on burning gives a dazzling white flame and changes to a white powder N. a) Identify Mand N. b) Represent the above reaction in the form of a balanced chemical equation.

What is the maximum number of grams of PH3 that can be formed when 6.2 g of phosphorus reacts with 4.0 g of hydrogen to form PH3?

How many grams of magnesium bromide, MgBr2, must be dissolved to prepare 400. mL of a 0.183 M aqueous solution of the salt?

List the specific sources of non renewable energy used in 2006

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) →C2H2 (g); ΔG∘f=209.2 kJ/molB. N2 (g) + 3H2 (g) →2NH3 (g); ΔG∘f=-33.30 kJ/molC.

How do I find the molar mass of Copper (II) Nitrate?

Describe several main ideas in chemistry

What is the wavelength of a wave having a frequency of 1.75*10^ 14 s^ - 1?

What alkene (s) would be produced from the dehydration of cyclopentanol?