Which of the following is a sign of a chemical reaction?

An ionic bond is _?_ a. formed when electrons shared between two or more electrons is unequally shared. b. a chemical bond where two atoms share the electrons in the outer shell. c.

What would be the best source of data for you current diet?

Which is a true statement? A) A colloidal system does not exhibit the Tyndall effect. B) Particles can be filtered from a suspension. C) The particles in a colloidal system are affected by gravity. D) A solution is heterogeneous.

A cube of aluminum is 20 cm on edge. aluminum has a density of 2.7 g/cm3 and a specific heat of 0.217 cal/g0c. what is the heat in calories needed to raise the temperature of the cube from 200 to 3000c?

Which ones are all nonrenewable resources? A. Coal, nuclear, oil B. Hydroelectric, biomass, solar C. Coal, hydroelectric, solar D. Wind, natural gas, solar

Glucose, C6H12O6, C6H12O6, is used as an energy source by the human body. The overall reaction in the body is described by the equation C6H12O6 (aq) 6O2 (g) ⟶6CO2 (g) 6H2O (l) C6H12O6 (aq) 6O2 (g) ⟶6CO2 (g) 6H2O (l) Calculate the number of grams of

Which two bases pair with each other?

What is the main cause of increased erosion

Where should you keep your glass of soda if you want it to remain fizzy

Why do the atoms in a piece of copper metal have no net charge? -The charges of the positive and negative copper ions cancel each other out. -The number of electrons surrounding each copper nucleus doesn't change.