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December 2025

42,840 public questions were asked this month.

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Recent questions

Latest from December 2025

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
In the diagram below, the height of a flagpole is labeled h . A right triangle is formed by a flagpole, the ground, and a line connecting the top of the flagpole to a point on the ground. The leg of the triangle correspo...
Asked by ., 1 answer
A positive ion is known as a(n) ionic radius valence electrons cation anion
Asked by john 1 answer
Atoms of the same element with different numbers or neutrons are called ________. isotopes metals radioactive elements metalloids
Asked by ja 1 answer
Ina is given the theorem and diagram below. She constructs the outline of a proof below to show that lines w and x are parallel. Consecutive Interior Angles Theorem: If two lines are parallel, the interior angles on the...
Asked by ., 1 answer
In a solution, the substance that is being dissolved is the _______. liquid solvent gas solute
Asked by lee 1 answer