It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, structure, behaviour, and changes that occur when they interact with other things. The quantum mechanical approach is currently used...
If household vinegar produces a pH of 2.4, what is the conIdentify orange juice, pure air, magnesium baking soda, pacific ocean, pure water and sidewalk cement as pure substance or mixture and element or compound homogeneous or heterogeneous.Whi...
One chemical aspect to consider when examining a substance is whether it is acidic or basic. Acidic substances have a pH of less than 7, while basic substances have a pH of more than 7. Neutral substances, such as pure water, have a pH of exactly 7, which is the center of the pH ...
This is a very important question that I ask my clients. It’s truly amazing how many people are unaware of the amount of self-talk that goes on in their head at every moment of every day. Even when you sleep, you are “making movies” about your life! Are you the hero or the vi...
The first to leave a description of the abandoned Coptic monastery that had once stood on top of the ruins of the temple of Hatshepsut was the famous English explorer Richard Pococke who stopped here in 1737. Jean-François Champollion copied the texts from the temple’s granite portals and...
a. a gold ring b. salt water c. granite d. sucrose After removing NaCl from a mixture of lime and sand, is the remaining mixture homogeneous or heterogeneous? Explain. Classify each of the following as a pure substance or a mixture. If it is a mixt...
granite d. sucrose For which of the following can the composition vary? a. Pure substance b. Element c. Both homogeneous and heterogeneous mixtures d. Homogeneous mixture e. Heterogeneous mixture What is an example of a pure substance? a. element b...
a. H2O b... Question: Which substance is a common reducing agent used in the production of metals from ores? a. {eq}H_2O {/eq} b. {eq}Na_2Cr_2O_7 {/eq} c. {eq}C {/eq} d. {eq}NaCl {/eq} Ores Ores contain minerals and are found...
Answer to: A solid sample of metal is dropped into an acidic solution. Bubbles form as the metal is dissolved. What kind of reaction have you...
A chemical is any substanceconsisting of matter. This includes any liquid, solid, or gas. A chemical is anypure substance(an element) or any mixture (a solution, compound, or gas). They can either occur naturally or can be created artificially. What IsNota Chemical? If anything made of ...