Identify statement as being most like an observation, a law, or a theory. The tides in Earth’s oceans are caused mainly by the gravitational attraction of the moon.

Q: 2. A solution of salt in water is a compound. heterogeneous mixture. a. b. homogeneous mixture. с.…

A: Homogeneous mixture : It is a mixture in which composition is uniform throughout the mixture.

Q: Compare the following: element, a compound, and a mixture.

A: For the given problem we have to differentiate between element , compound and mixture and explain…

Q: Which of the following is not a chemical change? A. burning coal B. making bread rise using baking…

A: A chemical change is a change in which the initial compound is having different structure or formula…

Q: Part B A sample is composed completely of gold and is absolutely free of impurities. Which term or…

A: Given,  A sample is composed completely of gold and is absolutely free of impurities.

Q: Question 4. New April 19, 2021. 1) Define physical properties?. Give 3 examples. 5) What is the…

A: a). Physical properties can be observed or measured without changing the composition of matter.…

Q: You add chocolate milk syrup to a glass of milk and stir it up the resulting chocolate milk would be…

A: When   we  add chocolate milk syrup to a glass of milk and stir it up. the resulting chocolate milk…

Q: Which physical state has particles with the most movement?

A: Physical states: One of physical condition of states in which matter exists is called as states.…

Q: Which of the following is a chemical change? Explain your reasoning: (a) boiling canned soup; (b)…

A: The chemical change of the reaction has to be given,

Q: Carla made models of a water molecule and a hydrogen peroxide molecule. Oxygen atom Oxygen atom…

A: The elements present in water as well as in hydrogen peroxide are oxygen and hydrogen. But the…

Q: All molecules attract each other to some extent,and the attraction decrease as the distance between…

A: Intervention between the particles depends upon the distance present between them. As stated in the…

Q: An untested explanation of a series of experimental observations is called is a tested/testable and…

A:

Q: Is a change in phase a physical change or a chemical change? Explain.

A: A physical change is a reversible change whereas chemical changes are generally irreversible. No new…

Q: Which element or elements are present in the unknown mixture?

A: flame atomic emission spectra or flame photometry Flame photometry based on measurement of intensity…

Q: Two samples of solids have similar reactivity with acids and similar densities. Their masses and…

A: Extensive properties are the ones whose value depend on the size of the system like mass , volume…

Q: B. Essay- Read and answer the question below properly and correctly Which intensive physical…

A: An intensive property is one that does not depends upon the amount of the substance.

Q: the atoms of elements or molecules of compounds when a chemical change occurs and when a physical…

A: Chemical reaction and chemical change: A chemical reaction bonds between atoms are broken and new…

Q: Elemental fluorine is a non-metallic, yellow, pungent-smelling gas. Are these characteristics of…

A: Elemental fluorine is a non-metallic, yellow, pungent-smelling gas. Whether these characteristics of…

Q: Which is an example of fuel that takes the shape of container and has definite volume?

A: The fuel that takes the shape of container and has definite volume, it should be in liquid phase.

Q: The boiling of water is aa. physical change because the water disappears.physical change because the…

A: The boiling of water is a physical or chemical change. (a) physical change because the water…

Q: Which of the following is not an example of a homogeneous mixture? Select any that apply: - Sugar…

A: Concept Introduction: Homogeneous mixture: A mixture throughout the solution in which the…

Q: If powdered elemental zinc and powdered elemental sulfur are poured into a metal beaker and then…

A: Element: A molecule made of similar type of atoms. Compound: A molecule made of more than one type…

Q: Vegetables is an example of  Element? Compound? Homogenerous mixture? Heterogenous mixture?

A: Vegetables are plant or part of plant that are cooked to consume in human body. They contain some…

Q: Classify each statement as an observation, a law, or a theory. When a match burns, heat is released.

A: A supposition or a system of ideas intended to explain something, especially one based on general…

Q: Which of the following pairing is incorrect? Seawater - Homogeneous Mixture Magnesium - Element O…

A: Element :-  Pure substance consisting of only one type of atoms is called as element Compound :-…

Q: Explain the difference between a law and a theory?

A: Various ideas are formulated by the scientists and some are derived experimentally using various…

Q: If limestone is interacted with an acid, it liberates a gas made from: a. water vapor b. methane…

A: Limestone is the common name of the salt CaCO3. It reacts with acid to form corresponding salt along…

Q: A chemical change results from a chemical reaction, while a physical change is when matter changes…

A: This is the concept of chemical and physical changes.

Q: a heterogeneous mixture is

A: In this question we have to tel that what is correct option of heterogeneous mixture.

Q: Identify statement as being most like an observation, a law, or a theory. Yesterday, high tide in…

A: An observation could be described as what a person witness while performing experiments (or) any…

Q: 1). Provide an example of application of chemistry in your home .    2)Provide one brief paragraph…

A: To provide an example of application of chemistry in homes and provide a description of concepts.

Q: Direction: In the following questions (QUESTIONS 49-53), a statement of ASSERTION is followed by a…

A: Both Aldehyde and Ketones fall under the carbonyl compound category. Aldehyde contains one alkyl…

Q: Describe the difference between a theory and a scientific law.

A: We usually come across different theories in the course of study and the scientific laws as well.…

Q: Directions Think about the three stat.es of matter. from the WORD POOL. classify the examples given…

A: Given descriptions: Solid: Has its own shape. Takes up a definite amount of shape. Liquid: Takes the…

Q: Label the following property of sodium as either a physical property or a chemical property:

A: chemical and physical properties are used to identify the elements. chemical properties determines…

Q: Using an example, explain the difference between a physical property and a chemical property

A:

Q: Which of the following is NOTA chemical change? O a. bicycle rusting O b. antacid neutralizes…

A:

Q: What states and properties of matter does a meteor have? - describe the types of changes that matter…

A: Meteors are space rock, generally made up with silicon and oxygen. There are many types of meteors-…

Q: soda Choose. salt water Choose. + brass Choose. +

A: In multipart questions, we solve only first three subparts according to the Bartleby guidelines.…

Q: Part B Which of the following properties of a piece of wood are physical properties? Check all that…

A:

Q: True or False When a physical change occurs,  a change in state occurs which indicates that a new…

A: In a physical reaction the property of the component ramains same as before the reaction. e.g. Ice…

Q: Identify statement as being most like an observation, a law, or a theory. Tides are higher at the…

A: The explanation is as given below:

Q: Explain and give examples of Physical and chemical properties.

A:

Q: Is the process of bananas ripening a chemical change or a physical change? Explain.

A: A Physical change is defined as a change that results in a change in the physical appearance of the…

Q: To separate the salt & water, a physical change was used. To separate the hydrogen & oxygen a…

A: Solution :      Physical change can be reversible but chemical change can not some exceptions are…

Q: A sample of wine consists of water, sugar, some amount of ethyl alcohol, and grape juice. These…

A: the mixture that is formed by the combination of two or more substances but not chemically. a…

Q: Is the following a chemical change, physical change or both? Explain. the ability to digest food

A:

Q: Classify the following items using the "one best" term to describe the example. vinegar Samp; oil (…

A:

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.