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UNKNOWN

Questions (490)

Use the chemical reaction to answer the question.2H2+O2→2H2O There are four atoms of hydrogen ( H ) before the reaction. How
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Use the chemical reaction to answer the question.NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2 A student mixes baking soda (NaHCO3 ) and
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Which is most likely to occur during a chemical reaction?(1 point)Responses New atoms are created. New atoms are created. Mass
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Use the chemical reaction to answer the question.4Fe+3O2→2Fe2O3 What happens to atoms of Fe and O2 during the reaction?
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Use the chemical reaction to answer the question.CaCO3→CO2+CaO A scientist heats 30 grams of calcium carbonate ( CaCO3 )
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why is rosa parks important to the Georgia history.
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what was rosa parks known for
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Solve for x.3x + 2 = x + 8 A. 1.5 B. 2.5 C. 3 D. 5
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Which of the following equations are true? (choose 3)Responses A 4^-2 × 4^2 = 1 B 4^-2 × 4^-8 = 4^-16 C 4^6 × 4^-5 = 4 D 4^-7
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3^-2 ÷ 3^p = 3^4What is the value of p? Responses A 6 B 2 C -2 D -6
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simplify: 9^-5. 9^-3A. 1/9^8 B. 1/9^2 C. 9^8 D. 9^15
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Evaluate the expression.(5+2+4)^0
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(8^4)^2=A. 8^2 B. 8^6 C. 8^8 D. 8^16
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(8^4)^2=
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(8^)^2=
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An equation is shown.(6^n)4 = 6^-12 What is the value of n?
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Simplify 2-8 ÷ 2-4.Responses A. 1/2^4 B. 1/2^32 C. 2^2 D. 2^32
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Maggie tried to evaluate the expression (4^−3 • 4^6)^3.(4^−3 • 4^6)^3 = (4^3)^3 Step 1 = 4^6 Step 2 = 4,096 Step 3 Which
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An expression is shown.(3/4)^2 . (3/4)^5 Which of the following is equivalent to the expression shown? Responses A. the fraction
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Which of the following expressions has a value that is a whole number?A. (-1/2)^3 B. -2^-3 C. 2^-3 D. 1/2^-3
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Simplify 6^5 × 6^-4.
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Find the quotient.11^18/ 11^3
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Move the expressions into the columns to show which expressions are equivalent to the value given at the top of each column. Not
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The equation: x2=91has what kind of solution(s) for x ?(2 points) Responses One irrational solution One irrational solution Two
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The equation: x2=25will have how many solutions for x ?(1 point) Responses Two solutions: x = 25/2 and x = -25/2 since the
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The equation: x3=−8will have how many solutions for x ?(1 point) Responses One solution: x = -2 since (-2)^3 = -8 One
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Match the operation with its inverse operation you would use to solve an equation for a variable.(7 points)x2 Division
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What is the area of a circle with a radius of 12 feet? Estimate the area to the hundredths place using 3.14 for π.(1 point)
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What is the circumference of a circle with a radius of 2.5 feet? Estimate the circumference to the tenths place using 3.14 for
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What is the circumference of a circle with a diameter of 3.25 meters? Estimate the circumference to the hundredths place using
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What is the circumference of a circle with a diameter = 4 feet? Which of the following is the best estimation for the
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Write the Area of a circle formula and solve for r.
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Which Georgian was an aide to Martin Luther King, Jr., served as mayor of Atlanta, and was instrumental in bringing the Olympics
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What legislation prohibited discrimination based on color, race, or religion in public places?(1 point) Responses Brown v. Board
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What effect did the March on Washington have on the Civil Rights Movement?(1 point) Responses It led to the passage of the Equal
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Which is responsible for the banning of literacy tests?(1 point) Responses Brown v. Board of Education Brown v. Board of
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QuestionElizabeth was studying physical and chemical properties and created the table below to help her. Which property and
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QuestionMichael has recorded his observations while mixing vinegar and baking soda in a beaker. image
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hich event that takes place while baking cookies is an indicator of a physical change?543532.png (1 point) Responses Ingredients
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Two friends are discussing physical and chemical changes. Isabela says that when you eat, it is a physical change because when
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Which event below is a physical change?A. fireworks exploding B. bike rushing C. water steaming D. fire burning (1 point)
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Which statement below is false regarding atoms and elements?(1 point)Responses All atoms of an element are identical. All atoms
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Which element does the table below identify?5eab69d2-6572-428a-9843-c02560c8d5b1 (1 point) Responses Silicon (Si) Silicon (Si)
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After conducting research on the periodic table, Taylor discovered that sodium (Na) is found in Group 1, Period 3 on the
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QuestionUse the Periodic Table below to help you answer the question: Which atomic model of boron (B) is correct?
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QuestionWatch the video about Families of the Periodic Table and answer the question: Which two groups of elements in the
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A student attempts to arrange four elements (as shown below) in order from most reactive to least reactive.9774aa63-6d1a-4fbc-8e
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QuestionUse the pictures below to help you answer the following question: Which statement below is NOT true about this atom?
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QuestionHow many neutrons are in the atom shown below? (1 point) Responses 26 26 82 82 30 30 55.845 55.845 Skip to navigation
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Which statement is false?(1 point) Responses Sulfur (S) and Sodium (Na) share a period. Sulfur (S) and Sodium (Na) share a
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What was the main goal of the Albany Movement between 1961 and 1962?(1 point) Responses to completely desegregate the city of
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What was the Student Nonviolent Coordinating Committee (SNCC)?(1 point) Responses An organization founded by students to
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What was the Southern Christian Leadership Conference (SCLC)? Select the two that apply.(2 points) Responses An organization
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Which of the following was NOT true about boycotts, sit-ins, and freedom rides?(1 point) Responses They drew public attention to
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Her teacher asks her to change the wave to show a greater energy transfer. What can the student do?a She can decrease the
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Which of the following is an example of diffraction?a. Sound through a wall being muffled. Selected:b. Light bouncing off a
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Do play a sport competitively and have any interest in seeking initial eligibility through the National Collegiate Athletic
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Which statement is NOT true about molecules and compounds?* 1 point All molecules and compounds are made of atoms. All molecules
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1. What is ALL matter made of?* 1 point cells atoms molecules compounds
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How do the authors of both “YouTube” and “TikTok” interpret differently the fact that TikTok is popular among young
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How does the author distinguish between Polynesia's settlement of Samoa and European and American interest in Samoa?A. The
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What is the central idea of the text?A. Samoa is an unincorporated U.S. territory that has none of the benefits of citizenship.
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What does the word tenet mean in paragraph 4?A. announcement B. leader C. principle D. question
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Which statement is a central idea in this text?A. Chicago’s City Hall has recently installed a rooftop garden. B. Some rooftop
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Which statement is a central idea in this text?A. Chicago’s City Hall has recently installed a rooftop garden. B. Some rooftop
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Which detail from the passage BEST supports the idea that green roofs can help cities decrease their power consumption?A. City
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Which sentence from the passage BEST supports why it is important to prepare a rooftop properly before gardening on it?A.
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Read the passage about Newton's laws.An eighth-grade science teacher wants to demonstrate Newton's laws. She moves the lab
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Which statements about nuclear energy does this diagram support? Select all that apply.A. One of the problems with nuclear
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Directions: The picture below shows a boy rowing a boat toward the shore. Use the picture to answer any questions that follow.Mu
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Coal and oil can be used to produce electrical energy but will eventually be depleted. Which best describes another method of
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A sample of argon-39 had an original mass of 1578 grams. After 538 years, the sample is 394.5 grams. What is the half-life of
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The diagram shows a reaction.Which statement correctly describes this type of reaction and the overall energy change that
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Look at the following chemical equation.AgI + Na2S → Ag2S + 2NaI What is true about this chemical equation? A. It is balanced
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Which equation demonstrates the law of conservation of mass?A. Mg + S → MgS2 B. C + O2 → C2O C. H2SO4 + Zn → 4ZnSO + H2 D.
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Jemele adds grape juice to four samples of household substances. Grape juice turns red in a solution with a low pH and green in
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Read the passage about Mr. Ellis.Mr. Ellis is showing his science class how salt dissolves in water. He pours 500 mL of water
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Read the passage about Ivory soap.Ivory soap floats in water because it is less dense than water. When Ivory soap is put into a
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The image shows the drawing a student made of ice molecules observed through an electron microscope.Is the student's drawing
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What is the chemical formula for nitrogen dioxide?A. NO2 B. NO4 C. N4O D. N2O
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Potassium (K), an alkali metal, and magnesium (Mg), an alkaline earth metal, both combine readily with bromine (Br), a halogen.
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Why does the compound sodium fluoride contain an ionic bond?A. The fluorine transfers one electron to the sodium to fulfill the
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1. determined how much farmers could grow of a particular crop and was ultimately determined to be unconstitutional. 2.
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1. officially abolished slavery in all areas of the United States 2. granted African American men the right to vote 3.
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officially abolished slavery in all areas of the United States granted African American men the right to vote granted
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Recognize which of the following statements is true.(1 point)Responses When k is positive, x2=k has one solution, which is
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What was the significance of the end of the white primary? Choose the two that apply.(2 points) Responses A. It required Georgia
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Which of these three people did NOT claim to be the governor of Georgia after the 1946 election?(1 point) Responses A. Herman
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What was the outcome of the Three Governors Controversy?(1 point) Responses A. Eugene Talmadge served as governor of Georgia for
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What was the outcome of the Three Governors Controversy?(1 point) Responses Eugene Talmadge served as governor of Georgia for a
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What are two good reasons to save your money:(2 points) Responses to buy something expensive to have in case of an emergency
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Income is the money you earn from(1 point) Responses A. having a job B. selling goods you make or grow C. investing in a
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wo cells are viewed and measured under a microscope. The approximate diameter of each cell is listed.Cell P: 5.0×10−4 m Cell
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Two cells are viewed and measured under a microscope. The approximate diameter of each cell is listed.Cell P: 5.0×10−4 m Cell
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What is the value of the expression simplified in Standard Notation: (3.2×10−2)(4.2×106)(5.2×105)(1 point) Responses 0.26
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Simplify the following expression to Scientific Notation: (4×10−9)5(1 point) Responses 2.0×10−3 2 point 0 times 10 to the
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The mass of a dust particle is approximately 7.5×10−10kilograms and the mass of an electron is 9.1×10−31 kilograms. How
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The mass of a dust particle is approximately 7.5×10−10kilograms and the mass of an electron is 9.1×10−31 kilograms. Which
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China has a population of approximately 1,322,000,000 people. Express this number in scientific notation.(1 point)Responses
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Put the numbers in order from smallest to largest. (5 points)3.24 x 10^-5 4.68 x 10^6 5.48 x 10^-2 8.34 x 10^6 1.2 x 10
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