Questions and answers by

boopboooooop

Questions (229)

If 2 g of X reacts with 3 g of Y in a closed container, what mass of product will form?A. 2 g B. 3 g C. 5 g D. 6 g
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2. 91 views
If 2 g of X reacts with 3 g of Y in a closed container, what mass of product will form?2 g 3 g 5 g 6 g
1. 1 answer
2. 104 views
In the chemical equation 2Fe + 3O2 --> 2FeO3, which substance is the product?2Fe 3O2 2FeO3
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2. 112 views
Which of the following activities has algae blooms as an unintended consequence?accessing fossil fuels accessing mineral
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2. 111 views
Which phrase best explains fracking?using water and chemicals at high pressure to open up fissures to access oil and gas
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2. 129 views
What is an ecological "dead zone"?a region that has successfully remediated the impacts of pollution a region that lacks
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2. 107 views
What is an ecological "dead zone"?A. a region that has successfully remediated the impacts of pollution B. a region that lacks
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2. 132 views
Which combination of chemicals is most responsible for eutrophication?A. nitrogen and phosphorus B. nitrogen and oxygen C.
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2. 112 views
Which action would most likely reduce water pollution?A. Promoting the use of oil and gas B. Removing trash from oceans C.
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2. 130 views
Pollution from factories contributes to acid rain because it containsA. particulates B. sulfur dioxide and nitrous oxides C.
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2. 127 views
What is an example of the greenhouse effect?A. The inside of your car becoming hot on a sunny day. B. Steam rising from boiling
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What are chlorofluorocarbons?A. Gas produced by cows and other farm animals. B. A group of gases that reverse global warming. C.
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What is a greenhouse gas?A. Gases that trap heat in the atmosphere. B. Carbon dioxide that helps plants grow. C. The warmth you
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2. 123 views
Which layer of the atmosphere contains greenhouse gases?A. Troposphere B. Exosphere C. Mesosphere D. Stratosphere
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2. 109 views
What is Global Warming?A. Ice at the North and South Poles are melting, raising the temperature of the oceans. B. When an
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Which is NOT a greenhouse gas?A. oxygen B. methane C. carbon dioxide D. water vapor
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2. 94 views
What type of biology is concerned with saving the natural environment?A. Geneti B. Conservation biology
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2. 131 views
BPA, which is found in many types of plastics like baby bottles and water bottles, are endocrine disruptors. Your endocrine
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2. 175 views
BPA, which is found in many types of plastics like baby bottles and water bottles, are endocrine disruptors. Your endocrine
1. 1 answer
2. 164 views
Acid rain is caused by the emission of sulfur dioxide and nitrogen dioxide into the atmosphere by burning fossil fuels. This
1. 49 answers
2. 195 views
Sulfur dioxide and nitrogen dioxide are naturally released by volcanic eruptions and some types of algae however humans emit a
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2. 138 views
Mercury is a neurotoxin and found in some types of fish. Pregnant women are not allowed to eat certain types of fish because it
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2. 110 views
Mercury is a neurotoxin and found in some types of fish. Pregnant women are not allowed to eat certain types of fish because it
1. 1 answer
2. 122 views
The water from the Mississippi river releases the nitrates and phosphates from the fertilizers from farm runoff into a small
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2. 125 views
Nitrates (compound of nitrogen) and phosphates (compound of phosphorous) are found in fertilizers and some detergents. When
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2. 107 views
Climate change is when we are messing up which biogeochemical cycle?Carbon Cycle Nitrogen Cycle Phosphporous cycle
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2. 139 views
The greenhouse effect is so named because certain gases in the atmosphere act like the panes of glass in a greenhouse. Using
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2. 100 views
According to B.F. Skinner, a behavior that is no longer followed by a reinforcing stimulus will:A. become more difficult to
1. 1 answer
2. 107 views
Which action would most likely reduce the occurrence of acid rain?(1 point)Responses promoting the use of renewable energy
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2. 139 views
Which statement identifies a consequence of acid rain?(1 point)Responses It can lead to cancer in humans. It can lead to cancer
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2. 131 views
Which claim about how chlorofluorocarbons are harmful to humans and the environment is true?(1 point)Responses
1. 3 answers
2. 205 views
Which option is a particulate associated with air pollution?(1 point)Responses chlorofluorocarbons chlorofluorocarbons ozone
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2. 171 views
Which action is the primary cause of air pollution?(1 point)Responses the depletion of the ozone layer the depletion of the
1. 1 answer
2. 149 views
A neutron strikes the nucleus of X-239, starting a fission reaction. The products are a Y-96 nucleus, a Z-140 nucleus, and some
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2. 117 views
242/96 Qr aftergoing through beta minus decay
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242/96 Qr aftergoing through beta minus alpha decay
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what is x and y of this beta minus decay242/96 Qr -> x/y Fg -> 0/-1 B
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what type of nuceular reaction is242/96 Qr -> x/y Fg -> 0/-1 B
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2. 116 views
What will be the value of X and Y in this nuclear reaction?242/96 Qr -> x/y Fg -> 0/-1 B
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2. 87 views
An unstable nucleus undergoes gamma decay. How does the nucleus change?It becomes more stable by releasing energy and particles.
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2. 113 views
what is the atomic number of 216/84 after it goes under alpha decay
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2. 183 views
what are the neutrons of 226/88
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2. 140 views
The element GreatRiverdom (Gr) is represented by the following symbol. How many neutrons does an atom of radium have?226/88 Gr
1. 1 answer
2. 169 views
The element GreatRiverdom (Gr) is represented by the following symbol. How many neutrons does an atom of radium have?226 138 88
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2. 112 views
Using your periodic table and your previous answer, what is the real element name of Yz?R Pb Ga Ra
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2. 103 views
Which statement best explains why mass is not conserved in a nuclear change?Not all of the reactants are used. Some of the
1. 1 answer
2. 135 views
Use the equation to answer the question. Which type of radioactive decay does the equation model?238/92 AB -> 234/90 BC -> 4/2He
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2. 213 views
Use the equation to answer the question. Which type of radioactive decay does the equation model?beta decay gamma decay positron
1. 1 answer
2. 199 views
Areaction occurs when one nuclear reaction starts a series of other nuclear fission reactions.
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2. 103 views
What characteristic of an isotope results in radioactive decay?one that has the same number of protons and electrons one that
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2. 137 views
The element GreatRiverdom (Gr) is represented by the following symbol. How many protons are in an atom of Gr?226 138 88 314
1. 3 answers
2. 110 views
The element GreatRiverdom (Gr) is represented by the following symbol. What is the mass number of Gr?226 138 88 314
1. 1 answer
2. 100 views
Gamma decay occurs along with alpha and beta decay?True False
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What would the mass number of the new element formed be?234 = 0 + ? 234 230 233 0
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2. 127 views
Identify the new element formed as a result of this nuclear decay from the periodic table.Radium Rubidium Ruthenium Radon
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2. 105 views
What number plus 2 will equal 88?88 = 2 + ? 172 44 90 86
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2. 79 views
What number plus 4 will equal 228?228 = 4 + ? 224 57 232 896
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2. 94 views
A shoe box has a volume of 64 cubic inches and a surface area of 160 square inches. What is the surface area of a similar shoe
1. 3 answers
2. 240 views
Use the image to answer the question.Describe at least two geometric transformations seen on the sheet music image below.
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2. 394 views
Use the graph to answer the question.What are the coordinates of A ' and B ' when AB is reflected in the y-axis? Show your work
1. 1 answer
2. 138 views
In 2008, Adam Lopez set a world record by singing the highest note ever recorded, a C8. That is four octaves above middle C and
1. 1 answer
2. 138 views
Which term describes the number of times a wave is translated in one second?A. period B. amplitude C. sine D. frequency
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2. 147 views
Use the image to answer the question.Which of the following mathematical patterns is evident in the piece below? A picture shows
1. 1 answer
2. 139 views
A 12 inch line segment is divided into two parts. Which of the following lengths result in a ratio closest to the golden ratio,1
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2. 201 views
Which standard photo size is closest to the golden ratio,1 + √ 5 2 ? A. 5-by-3 inches B. 7-by-5 inches C. 10-by-8 inches D.
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2. 184 views
Use the image to answer the question.The cylinders shown below are similar. Two cylinders are shown side by side. The first
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2. 285 views
Question 9 of 20Use the image to answer the question. The cylinders shown below are similar. Two cylinders are shown side by
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2. 112 views
Question 8 of 20Use the image to answer the question. The cylinders shown below are similar. Two cylinders are shown side by
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2. 259 views
Which letter has the same number of symmetry lines as the given letter?Z A. C B. F C. T D. O
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2. 110 views
An image shows a symmetrical snowflake with 6 points.A. 2 lines of symmetry B. 3 lines of symmetry C. 6 lines of symmetry D. 12
1. 1 answer
2. 174 views
Use the image to answer the question.How many lines of symmetry does the following figure have? An image shows a symmetrical
1. 1 answer
2. 254 views
Use the image to answer the question.Which line of reflection would make rectangle A ' B ' C ' D ' the image of rectangle ABCD?
1. 1 answer
2. 216 views
Use the image to answer the question.Which figure has rotational symmetry? An image shows four figures. Figure 1 is a crudely
1. 22 answers
2. 452 views
A(n) ______________ is the original figure in the transformation of a figure in a plane.A. isometry B. mapping C. image D.
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2. 169 views
Is beta decay a form of nuclear fission?(1 point)Responses No, it is not because the atomic number does not change. No, it is
1. 1 answer
2. 153 views
What term describes the distance a wave travels before it repeats itself?A. period B. amplitude C. hertz D. frequency
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2. 177 views
Which type of function shape most closely resembles a sound wave?A. line B. parabola C. sine D. logarithmic
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2. 192 views
The ratio of side lengths for two similar cubes is2 5 . Determine the ratios for each of the following. Show your work or
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2. 137 views
Why is the golden ratio so widely used in art and architecture?
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2. 124 views
Which of the following mathematical patterns is evident in the piece below?An image shows a gilded roof in a religious or
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2. 320 views
The golden ratio is denoted by which Greek letter?A. beta B. omega C. phi D. psi
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2. 145 views
How many lines of symmetry does the capital letter A have?A. 1 line of symmetry B. 2 lines of symmetry C. 3 lines of symmetry D.
1. 1 answer
2. 155 views
Use the graph to answer the question.In which quadrant will the image lie if AB is reflected in the x-axis? Line segment A B is
1. 3 answers
2. 477 views
The equilateral triangles shown below are similar.Two equilateral triangles are shown. The triangle on the left has side length
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2. 138 views
Use the image to answer the question.The equilateral triangles shown below are similar. Two equilateral triangles are shown. The
1. 1 answer
2. 141 views
Use the image to answer the question.Which transformation makes figure 2 the image of figure 1? Two figures are shown side by
1. 1 answer
2. 189 views
Use the graph to answer the question.What are the coordinates of A ' and B ' when AB is reflected in the x-axis? Line segment A
1. 1 answer
2. 301 views
Every night, the average human body experiences an increase in melatonin levels, and then every day the levels decrease.Is this
1. 1 answer
2. 202 views
Which statement describes periodic motion?A. Periodic motion is any motion that repeats itself until an outside force stops it.
1. 3 answers
2. 320 views
What is the distance between( 3 , − 4 ) and ( 6 , 9 ) ? Use the distance formula, d = √ ( x 2 − x 1 ) 2 + ( y 2 − y 1 )
1. 3 answers
2. 86 views
A ladder leaning against a house makes an angle of 60° with the ground. The bottom of the ladder is 7 feet from the foundation
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2. 222 views
Use the image to answer the question.In right triangle RST, ST = 5, RT = 12, and RS = 13. Right triangle R S T is shown. Angle T
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2. 115 views
Which change will always take place during nuclear fission?(1 point)Responses Several nuclei will combine into one nuclei.
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2. 125 views
Which statement best describes the effect of radioactive decay on a nucleus?(1 point)Responses The resulting nucleus is less
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2. 164 views
The process of radioactive decay is unpredictable and irreversible. Which option would be an appropriate model of the
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2. 97 views
Which option would be an appropriate model of nuclear fission?(1 point)Responses disturbing a drop of water such that it breaks
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2. 163 views
Which phrase describes a nuclear chain reaction?(1 point)Responses a reaction in which particles spontaneously emit radiation a
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Which phrase best describes nuclear fusion?(1 point)Responses the process by which a large nucleus is divided into smaller
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2. 193 views
Which statement best explains why mass is not conserved in a nuclear change?(1 point)Responses Some of the products have less
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2. 200 views
Polonium has a mass number of 212 and an atomic number of 84. In a balanced nuclear reaction, polonium releases an alpha
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2. 198 views