Compound Description A B C Mass of Hydrogen Mass of Oxygen clear, colorless, odorless liquid 0.105 g clear, colorless, odorless liquid 0.461 g clear, colorless, odorless liquid 0.225 g Use the data in the table to correctly complete the following statements. Compounds A and B the same compound. Compounds A and B illustrate the law of Compounds B and C Compounds B and C illustrate the law of - the same compound. 1.69 g 3.69 g 1.80 g

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Complete the table below by writing the symbols for the cation and anion that make up each ionic compound. The first row has been completed.

How many protons and electrons are there in a neutral atom of each of the following elements? manganese Express your answer as an integer. Np=Ne=   iodine Express your answer as an integer. Np=Ne=    phosphorus Express your answer as an integer. Np=Ne=

An element, Spencerecium, has two isotopes.  Spencerecium-145 has a relative abundance of 85 % and Spencerecium-140 has a relative abundance of 15 %.  What is the average atomic mass of Spencerecium?  Include two decimal places in your answer.

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MEASUREMENT AND MATTER Organization of the Periodic Table Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description An element in Period 1 and Group 8A. A metalloid in Group 4A. An alkali metal with a lower atomic number than nitrogen. A main-group element in Period 6. Does any element with Z≤ 92 match the description? Yes Yes Yes Yes No No O No No If you checked yes, give the symbol of an element with Z ≤ 92 that matches. X 0/5 Ś Sabrina

State the number of protons in Al^3+ Express your answer as an integer.   State the number of electrons in Al^3+ Express your answer as an integer.

Part A In the following images, the white spheres represent hydrogen atoms and the red spheres represent oxygen atoms. Classify each sample as an element, a compound, or a mixture. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help Element Compound Mixture Submit Google. Spotify - Docum. P Type here to search

Select which is appropriate in completely classifying gaseous oxygen O2. Homogeneous mixture Pure substance Mixture Compound Element Heterogeneous Mixture