Heterogenous mixtures - Study guides, Class notes & Summaries

UT Online High School Chemistry A Final Exam Thorough Review, Complete Solution Accuracy how close a measurement is to the true value dependent variable changes in response to the independent variable (what you measure in an experiment and what's affected during the experiment) Hypothesis a proposed explanation for an observation Independent variable (often denoted by x) doesn't depend on something else Scientific notation how scientists handle large or small numbers Significant Fig...

NLN-PAX RN Combined Set Exam Questions With Verified Answers What deficiency causes night blindness - ANSWER Vitamin A A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed? - ANSWER They eventually will all swim away from the ammonium hydroxide The process of nuclear cell division in the cell reproduction of plants differs from ...

ATI TEAS 7 Chemistry Questions and answers 2023 Matter- Anything that has mass + volume. divisions of matter- pure substances and mixtures Pure Substance. A sample of matter, either a single element or a single compound, that has definite chemical and physical properties EX: O, H, CL, ( elements ) Compounds: H20, NaCL. definite properties: always the same Heterogenous mixtures are... mixtures that are not uniform throughout

chemical property correct answer: the way substances may change/react to become another substance physical property correct answer: can be observed without any change to identification and/or composition matter correct answer: anything that has mass and occupies space reactivity, stability, flammability, toxicity, fermentation correct answer: examples of chemical properties malleability, ductility, conductivity, viscosity, boiling/melting point correct answer: examples of physic...

Matter Anything that has mass + volume divisions of matter pure substances and mixtures Pure Substance A sample of matter, either a single element or a single compound, that has definite chemical and physical properties EX: O, H, CL, ( elements ) Compounds: H20, NaCL definite properties: always the same Heterogenous mixtures are... mixtures that are not uniform throughout Oil and water - creating a distinct boundary Homogenous mixture example a mixture in which the composition i...

Create a line graph, a bar graph & circle graph. Tell when it is best to use each one. - correct answer ... Line- changes over time - correct answer Bar- Comparing Quantities - correct answer Circle- Parts of a whole (%) - correct answer Identify the axis that the independent & dependent variab...

Molecule - A molecule is defined as two or more atoms joined by strong forces called chemical bonds. Which of the following is the correct relationship between weight and mass? - weight=mass×gravity The smallest particle of an element that has the properties of that element is called a(n): proton electron atom molecule - atom The atom is the smallest unit of an element. A proton and electron are subatomic, and a ________ is a combination of atoms. - molecu...

CHEM 1311 Exam 1 Questions with Correct Answers chemical property - Answer-the way substances may change/react to become another substance physical property - Answer-can be observed without any change to identification and/or composition matter - Answer-anything that has mass and occupies space reactivity, stability, flammability, toxicity, fermentation - Answer-examples of chemical properties malleability, ductility, conductivity, viscosity, boiling/melting point - Answer-examples...

Science Matters Questions And Correct Solutions 2024 Updated Matter - Answer -Matter is anything that has mass and takes up space. MIXTURE - Answer -A mixture is matter that can vary in composition. Mixtures are combinations of two or more substances that are physically blended together. The amounts of the substances can vary in different parts of a mixture and from mixture to mixture. ATOM - Answer -An atom is a small particle that is a building block of matter. At the center of a atom is...

Chem 2 ACS final Exam 115 Questions with Verified Answers Ideal gas law conditions - CORRECT ANSWER low pressure, high temperature Boyle's law - CORRECT ANSWER p1v1=p2v2 gases are highly _________ - CORRECT ANSWER compressible gases expand ________ to fill the container they are placed in - CORRECT ANSWER spontaneously the distance between molecules in gases are _____ - CORRECT ANSWER far apart in gases 1 mol of any gas at STP is - CORRECT ANSWER 22.4 liters the lighter the...