Which of the following is a mixture?

A. carbon dioxide

B. silicon

C. silicon dioxide

D. sand

What are the major natural branches of science

Glucose is stirred into water to form a solution. In this case, what are the glucose and water? A) Glucose is a solution and water is a solvent. B) Glucose is the solvent and water is the solute. C) Glucose is the solute and water is the solvent.

What is 99 dag converted cg

Which of the following explains the increase in reaction rate caused by raising the temperature or raising the pressure of a system? a) surface area theory b) activation energy theory c) potential energy theory d) collision theory

When comparing the two elements k and cs, the element with the more negative electron affinity is?

Determine the relative formula mass of glucose (C6H12O6) using the periodic table below. A. 29.1 g/mol B. 24.0 g/mol C. 15.0 g/mol D. 180.1 g/mol

How many moles of potassium chloride are in 28 grams of KCl? A.).265 mole KCl B.).856 mole KCl C.).376 mole of KCl (think it's this but idk) D.) 1.2 mole KCl

An unknown liquid has a pH lower than 7, conducts electricity poorly, and tastes sour, what kind of solution is the unknown?

Five beans have a mass of 2.1 g. How many beans are in 0.454 kg of beans.

As the temperature of a liquid goes up, the average speed of its particles. This means that the kinetic energy of the particles