1. The Invention of Iron ended the stone oge. ge 2 Prehistory is before humans walked upright. 3. Homo Sapiens are people who think.
Q: Draw the organic products of the reaction shown. Draw hydrogens on oxygen and nitrogen where…
A: We know that imines contains C = N bond These are readily reaction with acid and water conditions…
Q: If two substances react and the temperature of the mixture increases, the reaction is O Endothermic…
A: There are two types of reaction, endothermic reaction and exothermic reactions. In endothermic…
Q: Part B Spell out the full name of the compound
A: The structure of the given compound is,
Q: How close are the best density values obtained for copper, iron, aluminum and glass compared to the…
A: Density is defined as mass of substance per unit volume occupied by it. Density = Mass of…
Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…
A:
Q: 16. The mass of an object can vary with the object's location. 17. A mass measurement includes the…
A: Since your question has multiple sub-parts, we will answer the first three sub-parts for you. If you…
Q: Blue Blue dye stock solution Absorbance at 630 nm Calibration curve A solution is prepared by…
A: Concentration of blue dye stock slution = 0.293 MAbsorbance A = 0.00265The calibration curve y =…
Q: QUESTION 12 The best reagents to carry out the reaction at right would be: O a. O b. O C. O d. CH3…
A:
Q: What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?
A: Given : A paragraph is given. To find : Possible question in proper format from the paragraph.…
Q: Heptan-3-ol is produce from hept-3-ene by an reaction. elimination acid-base addition…
A:
Q: Iodine has a mass number of 127 and 53 protons, how many neutrons does it have?
A:
Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts.…
A:
Q: Which two elements on the periodic table are in the same period? O Sn and Rb O K and Ba O F and Cl O…
A: The periodic table is divided into 18 groups and 7 periods.(i) The 18 vertical columns that goes…
Q: A chemical reaction takes place to allow instant cold packs to absorb energy. This is an example of…
A: Reactions that absorb heat from the environment are called endothermic reactions. A common example…
Q: What number should be placed in the blank in order for this equation to follow the Law of…
A:
Q: How do you determine the polarity of a molecule using the molecular geometry? Select all correct…
A: DETERMINATION OF POLARITY (Molecule Polarity) The overall polarity of molecules with more than one…
Q: Write the name of the element next to the atom. You may need to use the Periodic Table to
A: For naming of the atom we should know number of electrons and protons
Q: Retrograde Synthesis Assignment IF Outline a synthesis of the following molecules starting with…
A: Note - Above question is a multiple question , hence I solved first question according to rules of…
Q: Classify each of the following as elements (E) or compounds (C). HCI NaCI CH,COOH Fe element
A:
Q: Which information could a student determine fromn only the chemical formula of a protein? O The…
A: Welcome to bartleby !
Q: Which of the following represents the generic form of a double-displacement reaction? A) A +B AB B)…
A: The reaction that involves exchange of ions between two previous and compounds that upon exchange of…
Q: For each of the equations: A. Determine if the equation follows the law of conversation of mass and…
A: According to the law of conservation of mass, mass can neither be created nor destroyed in any…
Q: Can someone please help
A:
Q: If two substances react and the temperature of the mixture decreases, the reaction is Endothermic…
A:
Q: I need answers for # 2-9 on this worksheet
A: Cations are postively charged species , so they are formed by metals by losing electrons. Anions…
Q: Nitrogen has an atomic number of 7. How many protons does it have? O 7 O 14 O 15
A: Protons are the positively charged subatomic particles present in the nucleus of an atom of the…
Q: 2. If k, = 0.97 atm-L, what would be the volume (in liters) of a gas at 586 mmHg?
A: Given: K = 0.94 atm. L = 714.4 mmHg. L (Since: 1 atm = 760 mmHg ) The given pressure = 586…
Q: Chromium metal can be produced by the reduction of Cr203 with elemental silicon: 2 Cr203 + 3 Si → 4…
A:
Q: Which of the following is a common sign that a chemical change has occurred? O A chemical has…
A: There are various signs that show the chemical change has done : 1. Change in odour 2. Change in…
Q: If you have 155 solution, how many grams of FeCl3 are contained in this sample? mL solution of a…
A: Stoichiometry
Q: 1. Which bond-line structure, as drawn, is identical to the given Newman projection? CH3 F. H `H CH3…
A:
Q: 5. Determine the value of Mb if (Ua/Ub) = v (Mb/Ma). Ua =10.0, Ub = 8, and Ma = 10.0. %3D 9 6.…
A:
Q: how many Of water Que H2o arE PreSen t In 19.29 H2o? Ci8g/ mol)
A: The the question is based on the mole concept. it involves calculation of number of molecules of…
Q: Which change can be easily reversed? O Chemical Change O Physical Change O Both a physical and…
A: A physical change happens when a compound undergoes changes in physical properties like color…
Q: Which f the following is an example of chemical change? O Filling up a balloon with hot air. O…
A: Chemical change is a process which results when a substance combines with another substance to form…
Q: If a chemical equation is multiplied by some factor, then DH is also example: if 2 CO(g) + O₂(g) Ⓡ 2…
A:
Q: 1. Calculate how much lemonade powder you will need to make 0.100 L of each solution. Fruit drink is…
A: To calculate the mass of lemonade powder needed for each solution, we need to use the molar mass of…
Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a time so we are answering the first three as you have not mentioned which of these you are looking for. Please re-submit the question separately for the remaining sub-parts.
History is a branch of social sciences that studies the evolution of humans. All these facts also mention how the evolution of humans in different ages.
Step by step
Solved in 3 steps