Archive day

December 18, 2025

1,693 public questions were asked on this day.

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A vertical column of blocks in the periodic table is called a(n) group period property octet
Asked by john 1 answer
What is the total number of atoms in the compound Ca3(Cl3)2 5 9 2 3
Asked by lee 1 answer
Which explains the most likely denotation and connotation of crafty in this sentence? Base your answer on context. A. Denotation: clever Connotation: practical; clever in a useful way B. Denotation: clever Connotation: c...
Asked by aubrey 1 answer
Gentrification changed D.C. socially by displacing long-time black residents, removing majority black neighborhoods, and making culture more diverse. It also impacted the economy by raising property values and rents and...
Asked by tt 1 answer
Mendeleev did not always list elements in his periodic table in order of increasing atomic mass because he grouped together elements with similar properties atomic numbers densities colors
Asked by john 1 answer
Quadrilateral ABCD is transformed to A'B'C'D'. The quadrilateral A-B-C-D has A at (3, 3), B at (6, 3), C at (4, 1), and D at (1, 1). The quadrilateral A prime-B prime-C prime-D prime has A prime at (-3, 0), B prime at (0...
Asked by ., 1 answer
Elements in a group or column in the periodic table can be expected to have similar atomic mass atomic numbers properties neutrons
Asked by john 1 answer
Increasing the surface area of a solid ______. speeds the rate of dissolving causes the solid to ionize slows the rate of dissolving has no effect on the rate of dissolving
Asked by lee 1 answer
A horizontal row of blocks in the periodic table is called a(n) group period family octet
Asked by john 1 answer
In a solution, the substance that is being dissolved is the _______. solute gas solvent liquid
Asked by ja 1 answer
Which congruence postulate or theorem shows that the triangles below are congruent? A triangle with hypotenuse 15, base angle as 38 degrees and an angle opposite to the hypotenuse is 100 degrees and pointing to the left...
Asked by ., 1 answer
Matter with no definite volume and no definite shape is a _____. liquid plasma gas solid
Asked by lee 1 answer
_____ is another name for a homogeneous mixture. liquid substance suspension solution
Asked by ja 1 answer
Refer to the figure below. To which group do fluorine and chlorine belong? image.png image.png alkaline earth metals transition metals halogens noble gases
Asked by john 1 answer
Elements to the right side of the periodic table (p-block elements) have properties most associated with gases non-metals metals metalloids
Asked by john 1 answer
Atoms of the same element with different numbers or neutrons are called ________. metals isotopes radioactive elements metalloids
Asked by lee 1 answer
Elements that lie along the stair-step line of the periodic table are _____> metalloids radioactive liquids metals
Asked by ja 1 answer
Parallelogram JKLM undergoes a dilation transformation with a scale factor of 4, resulting in a new shape. What would be the perimeter of this new image? A. 43 in. B. 54 in. C. 108 in. D. 432 in.
Asked by . 1 answer
The elements in Group 1 are also known as the alkali metals rare earth series Period 1 actinides
Asked by john 1 answer
When one element replaces another element in a compound, the reaction is a ______. double-repalcement single-replacement synthesis decomposition
Asked by ja 1 answer
Triangle A B C is shown below. Triangle A-B-C is shown on a coordinate plane with vertex A located at (negative 4, 5), B located at (negative 1, 4), and C located (negative 3, 2). What are the coordinates of the image of...
Asked by ., 1 answer
Each substance on the left of the arrow in chemical equation are _______. coefficient catalyst product reactant
Asked by lee 1 answer
The most reactive group of the nonmetals are the lathanides transition metals halogens noble gases
Asked by john 1 answer
Matter that has a definite volume and a definite shape is a _________. gas plasma liquid solid
Asked by ja 1 answer
When a log burns in a fire, _____________. new substances are formed. a physical change has occured. mass is lost. mass is gained.
Asked by lee 1 answer