Which of the following is true of alpha decay?*

0 It is the most penetrating form of radiation

O It has a negative particle

O It is equivalent to a helium nucleus (2 protons and 2 neutrons)

O It is a form of electromagnetic energy

What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be

A solution has a volume of 2.0 L and contains 36.0 g of glucose. if the molar mass of glucose is 180 g/mol, what is the majority of the solution?

Colloidal solution show tyndall effect but true solution do not explain

What is the empirical formula of C6H18O3? CH3O C2H5O C2H6O C2H5O5

What is the first element to start filling a d sublevel?

A precipitate of zinc hydroxide can be formed using the reaction below. ZnCl2 (aq) + 2 KOH (aq) → Zn (OH) 2 (s) + 2 KCl (aq) If excess KOH is used, the zinc hydroxide will form zincate ions and dissolve in the solution according to the chemical

Which of the following is the correct (unbalanced) equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? A. P (s) + O2 (g) - -> P2O5 (s) B. P2O5 (s) - -> P2 (s) + O2 (g) C.

Nonrenewable resources are natural resources that are limited in supply and cannot be replaced as quickly as they are used up. True or false

Which method for treating arthritis is an example of pseudoscience? diet drugs exercise magnets

Only a small portion of the organisms that lived in the geologic past have been preserved as fossils. Which condition best increases the chance that an organism will become fossilized?