Which of the following is NOT one of the elements important for life? (MARK ALL THAT APPLY) oxygen chlorine D nitrogen phosphorus phospholipids carbon

Q: Which of the following are properties of liquid water? Select all that apply:   It has…

A:

Q: Label each of the following as a compound, element, or molecule. In some cases, more than one term…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering the first three…

Q: the questions that follow. A sample is done for you. the elements of a fire triangle. Answer…

A: A question based on general chemistry that is to be accomplished.

Q: 39 Which event is an example of a physical change? (1) iron rusting (2) fireworks exploding (4) ice…

A: The changes in the appearance of the substance is called as the physical change. Physical changes…

Q: Q.5 (A) Write the chemical names for the following chemical compounds. a) Caustic soda b) Laughing…

A: Part A The chemical name of this compound is sodium hydroxide. The chemical name of this compound…

Q: 11. Which of the following nanomaterials is a class of naturally occurring nanomaterial? Choose…

A: Naturally occcuring nanomaterials can be found in volcanic ash, ocean spray, fine sand and dust,…

Q: Which of the following is part O glass collection tubes a power source thormo meter

A: Hofmann apparatus used for  electrolysing  water and  it is invented  by August  Wilhelm Von…

Q: Complete the following table. Directions: Remember that spelling counts. Do NOT capitalize names.…

A:

Q: Which term listed is a property of a non-metal?  high density brittle shiny  conducts electricity

A:

Q: An engineer is designing a new phone and is in the process of choosing the elements to make up the…

A: Different elements shows different physical and chemical properties . There are elements which are…

Q: Complete the sentences by crossing out the words that are wrong. The first one has been done for…

A:

Q: Identify the following as examples of rotation or revolution. The moon moving around the Earth A…

A: "Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the…

Q: Define each of the followings: (1) environmental science, (2) Environmental Chemistry, (3)…

A: Definitions: (1). environmental science:

Q: Which molecule has the most carbon atoms? How many carbonatoms does it contain?

A: Before we move towards the most number of Carbon atoms and number of Carbon atoms, let's simplify…

Q: Determine if each of the following is a chemical or physical property. Chlorine gas has a…

A: Physical properties are those which tells about physical appearance of a substance .  In this we…

Q: Classify the statements as either a physical or chemical property of a protein. Chemical property…

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

Q: Which of the following materials would make a better shield from radiation? i)  Iron (density =…

A: To find: The material which make a better shield from radiation

Q: Classify each of the listed properties of isopropyl alcohol (also known as rubbing alcohol) as…

A: Physical properties can be measured or observed without changing the identity of the substance.…

Q: Identify each of the following elements (give the chemical symbol): a) Is in period 2 and group 13…

A: The periodic table is divided into groups and periods. The rows are known as periods and the columns…

Q: In each of following questions, four words have been given of which three are alike in some way and…

A: As per the rules, only the first question can be answered.

Q: Which of the following is a compound? milk aluminum foil silver salt

A: Compound demonstrates the bonded atoms of two or more elements .

Q: Which of the following is a chemical property? O Changing shape Melting point O Oxidizing…

A: Physical change: In a physical change the physical state of matter changes. In this change different…

Q: Which of the following can be more completely broken down? a) Petrochemicals b) Metals c)…

A: Among the given options, Petrochemical = does not break completely. Metals = does not break.…

Q: Give at least 2 significant examples of chemical reactions that falls on change in intrinsic…

A: (1) Intrinsic properties are those properties in which properties not depend on internal amount of…

Q: Battery acid Toothpaste Agua oxygenada Antacid Softdrinks (Coke) Laughing gas

A: The given common name are general calling name of these chemicals which are having following…

Q: 1. Which of the following is NOT a pure element Nitrogen Carbon Dioxide

A: Pure substances :- Pure substances consist of single type of particles. Pure substances can be…

Q: The core of planet Earth is primarily composed of oxygen and silicon O gold and silver O iron and…

A:

Q: Choose the letter that DOES NOT belong on the list. A. carbon dioxide B. water vapor C. argon D.…

A:

Q: 22. Energy is not considered a form of matter. Which of the following reasons correctly explains…

A: Matter: This is a part of universe. Matter is has measure the mass. Matter has own volume .  Energy:…

Q: Below are some objectives. Check if each objective possesses the SMART characteristics. If not,…

A: In the given questions some objectives are given. 1. Position of an element in periodic table gives…

Q: Drag the appropriate items to their respective bins. Reset Help bluish color gas at room temperature…

A: Answer :-  Physical  Chemical  bluish color  gas at room temperature  pungent odor   very…

Q: Classîfy the size of the examples of matter as being on the macroscopic, microscopic, or atomic…

A: Macroscopic objects can be seen with the naked eye.  Microscopic objects cannot be seen with naked…

Q: Which of the following would be heterogeneous?      A mixture of sand and water.      A mixture…

A: A heterogeneous mixture is a mixture with non-uniform composition or we can say it contains two…

Q: Identify each of the following as solid, liquid, or gas: -Oil paint in a container -Ice cubes in a…

A:

Q: Fill in the blanks by writing the name of the definition: _________ is a substance made up of only…

A: Matter classified into element compound mixture

Q: Which of the following substances meets the definition of a pure "compound" according to the…

A:

Q: Which among the following is a compound? salt crystals O charcoal O sulfur powder O iron filings

A:

Q: True or false?  (No need explanation) different types of gloves protect against different types of…

A: Here three statement is given and question asked about the statement is true or false.

Q: What is green chemistry? Choose the BEST answer. O Chemistry that uses only recycled chemicals. O…

A: Applying fundamental principles of green chemistry.

Q: Solids, Liquids, and Gases After You Read • Solid, liquid, and gaseous states of matter are…

A: Solid, liquid and gaseous states of matter are determined only by temperature.  After you read - A.…

Q: 13. The drug has no color: (There may be multiple correct answers!) A) Collargol B) Cisplatin B)…

A: A) Collargol is an Alkaline solution of colloidal silver. Colloidal Silver is typically a suspension…

Q: Classify each item as element or compound : gas in a hellium balloon, table sugar,the rust on an…

A: Primarily matter is separated into two main categories which are pure substances and mixtures.An…

Q: Which of the following are physical properties of elements within Group 2 of the periodic table?…

A: The elements Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium…

Q: Which of these is a property of metals? O It's very brittle It's malleable O They are used in food O…

A: Metals :-  Solid substances which can form cations readily by losing electrons and form lattice in…

Q: Graphene is a __________? a. metallic nanomaterial b. carbon nanomaterial c. quantum dots d.…

A: Graphene exist as single layer of atoms arranged in two dimensional lattice.

Q: Classify the words below by placing them under their right types of energy. (It is possible that one…

A:

Group 14 Elements

The following elements come under group 14 of the periodic table.