Let a small circle represent an atom of one type of element and a small square...
Let a small circle represent an atom of one type of element and a small square represent at atom of a second type of element. Select what is shown on each of the pictures:
Part A:
| - a homogenous mixture composed of the two elements | |||||||
| - a pure substance (a compound) composed of the two elements (in a one-to-one ratio) | |||||||
|
- a heterogeneous mixture composed of the two elements Part B:
|
Homework Answers
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Let a small circle represent an atom of one type of element and
a small square...
Using triangles to represent one type of atom and circles to represent a second type of...
Using triangles to represent one type of atom and circles to represent a second type of atom, Draw one image to represent a mixture of the two atoms. Draw a second image to represent a compound composed of the two atoms.
Match each definition with its term. Element Atom Molecule Compound Answer Bank substance composed of at...
Match each definition with its term. Element Atom Molecule Compound Answer Bank substance composed of at least two different elements chemically bonded together a unit of matter composed of two or more atoms joined by a covalent bond 6 ERTY UO P к Atom Element Molecule Compound Answer Bank a substance composed of w aste different elements chemically bonded together unit of matter composed of two j edy a covalent bond e composed of only one type of t h...
Which of the following are mixtures? water (HO) salt water salt (NaCl) air (mostly N, and O2) O Classify each...
Which of the following are mixtures? water (HO) salt water salt (NaCl) air (mostly N, and O2) O Classify each substance as an element, a compound, a homogeneous mixture, or a heterogeneous mixture. Element Compound Homogeneous mixture Heterogeneous mixture Answer Bank Classify the phrases pertaining to pure substances and mixtures as either true or false. True False Answer Bank Components of a homogeneous mixture are visibly distinct The components of homogeneous and heterogeneous mixtures cannot be separated Homogeneous mixtures have...
Consider the reaction: J2(g) + R2(g) ⇄ 2JR(g). Let a square represent an atom of J...
Consider the reaction: J2(g) + R2(g) ⇄ 2JR(g). Let a
square represent an atom of J and a circle represent an atom of R.
The value for the equilibrium constant for this reaction at 25°C is
greater than 1. The drawing below labeled Before shows a small
representative volume of a container held at 25°C immediately after
J2 and R2 have been added but before reaction between J2 and R2 to
give JR has occurred. Circle the letter of each...
6. compoca of 2 or more diffipu LIUTUVIU Select the statement(s) that best describe(s) the two...
6. compoca of 2 or more diffipu LIUTUVIU Select the statement(s) that best describe(s) the two boxes shown. You may select as many choices as you wish. or To Each box contains a compound. Each box contains a mixture. Box A contains a mixture and box B contains a pure substance. Each box contains a pure substance. Box A contains a mixture of elements, box B contains a pure element.
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which...
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which of the following depicts a small representative volume of a 0.10 M aqueous solution of ammonium sulfate? Water molecules have not been included. For each incorrect answer, state why it is incorrect; be as specific as possible. A в C о ‑ G F None of B these O ODO epresents an ato At 25°C in a 50 mL Erlenmeyer flask were combined 1.050...
i need help with 1-6 i need help with questions 1-6 Question 1 8 pts Choose...
i need help with 1-6
i need help with questions 1-6
Question 1 8 pts Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A element [Select) > b) [Select) c) [Select) d) C10HSCIN2 (Select) Question 1 Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A eleme [Select] S...
Post-lab Questions Part 2 8. Among the elements, hydrogen has the least massive atoms. An atom of hydrogen has an a...
Post-lab Questions Part 2 8. Among the elements, hydrogen has the least massive atoms. An atom of hydrogen has an average mass of 1.66 x 10-24 g. This mass is very small, but remember it is only one atom which is composed of one proton and one electron! What is the relative mass of hydrogen if it is the least massive element? 9. How do the atomic masses found on the periodic table compare to the relative masses you calculated?...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
Match each definition with its term. Element Atom Molecule Compound Answer Bank substance composed of at least two different elements chemically bonded together a unit of matter composed of two or more atoms joined by a covalent bond 6 ERTY UO P к Atom Element Molecule Compound Answer Bank a substance composed of w aste different elements chemically bonded together unit of matter composed of two j edy a covalent bond e composed of only one type of t h...
Which of the following are mixtures? water (HO) salt water salt (NaCl) air (mostly N, and O2) O Classify each substance as an element, a compound, a homogeneous mixture, or a heterogeneous mixture. Element Compound Homogeneous mixture Heterogeneous mixture Answer Bank Classify the phrases pertaining to pure substances and mixtures as either true or false. True False Answer Bank Components of a homogeneous mixture are visibly distinct The components of homogeneous and heterogeneous mixtures cannot be separated Homogeneous mixtures have...
Consider the reaction: J2(g) + R2(g) ⇄ 2JR(g). Let a
square represent an atom of J and a circle represent an atom of R.
The value for the equilibrium constant for this reaction at 25°C is
greater than 1. The drawing below labeled Before shows a small
representative volume of a container held at 25°C immediately after
J2 and R2 have been added but before reaction between J2 and R2 to
give JR has occurred. Circle the letter of each...
6. compoca of 2 or more diffipu LIUTUVIU Select the statement(s) that best describe(s) the two boxes shown. You may select as many choices as you wish. or To Each box contains a compound. Each box contains a mixture. Box A contains a mixture and box B contains a pure substance. Each box contains a pure substance. Box A contains a mixture of elements, box B contains a pure element.
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which of the following depicts a small representative volume of a 0.10 M aqueous solution of ammonium sulfate? Water molecules have not been included. For each incorrect answer, state why it is incorrect; be as specific as possible. A в C о ‑ G F None of B these O ODO epresents an ato At 25°C in a 50 mL Erlenmeyer flask were combined 1.050...
i need help with 1-6
i need help with questions 1-6
Question 1 8 pts Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A element [Select) > b) [Select) c) [Select) d) C10HSCIN2 (Select) Question 1 Choose the best classification for each of the following substances. a) a substance made from the combination of group 1A element and a group 7A eleme [Select] S...
Post-lab Questions Part 2 8. Among the elements, hydrogen has the least massive atoms. An atom of hydrogen has an average mass of 1.66 x 10-24 g. This mass is very small, but remember it is only one atom which is composed of one proton and one electron! What is the relative mass of hydrogen if it is the least massive element? 9. How do the atomic masses found on the periodic table compare to the relative masses you calculated?...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
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