Questions and answers by

pickles

Questions (345)

Will the following replacement reaction occur?MgI2+Cl2 → ? (1 point) Responses No, it will not because iodine and chlorine
1. 1 answer
2. 60 views
Calcium (Ca) bonds with another atom to form a stable molecule with formula CaX. Based on groups in the periodic table, which
1. 1 answer
2. 38 views
Under certain conditions, water can be separated into oxygen and hydrogen gases according to the equation: 2H2O → 2H2 + O2. In
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2. 21 views
How is an atom of the Potassium (K) likely to act during a chemical reaction?(1 point) Responses It will likely lose electrons.
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2. 12 views
In an experiment involving a balloon, a scientist notices that the gas particles within the balloon begin to move faster,
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Which comparison is correct?(1 point) Responses PH3 is a stronger acid than NH3 . cap p cap h sub 3 is a stronger acid than cap
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How do temperature changes lead to solubility changes for salt dissolved in water?(1 point)Responses High temperatures mean that
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How did the study of the atom contribute to our understanding of the periodic table of the elements?(1 point)Responses Atoms are
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QuestionHow would you substitute the direct object in the following sentence? Comí el plátano. (1 point) Responses Comí lo.
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Methane ( CH4) is a gas that is found in small quantities in Earth's atmosphere. Select the correct responses that make the
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Determine if the given equation if BALANCED or UNBALANCED. (5 points)(5 points)BALANCED UNBALANCED N2+H2→2NH3
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Balance the following chemical equation. Drag the option at the bottom to the correct spot. (4 points)(4 points) Put responses
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Use the following chemical equation. (3 points)H2+O2→2H2O Using the drop down box selection, construct a statement that
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Which term refers to a substance that changes color when there is a certain concentration of hydrogen ions in a solution?(1
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Which element is most likely to react with Cl?(1 point) Responses Kr Kr Li Li O O Br
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Use the electronegativity and valence electron information in the table to answer the question.Element Valence Electrons
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Which characteristic do electronegativity differences indicate about reactions between atoms?(1 point)Responses compound energy
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Which element gains three electrons to fill its outermost energy level?(1 point) Responses boron (B) boron (B) phosphorus (P)
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When potassium salt (KCl) forms, which action occurs between the reacting elements?(1 point)Responses Potassium donates an
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When potassium salt (KCl) forms, which action occurs between the reacting elements?(1 point)Responses Potassium donates an
1. 1 answer
2. 19 views
Which statement describes the bonds in carbon dioxide ( NO3 −)? (1 point) Responses Carbon and oxygen have an
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KOH+F2→KF+F2O+H2OWhich option shows a correctly balanced chemical equation. (1 point) Responses 3KOH+3F2→KF+F2O+2H2O
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Two carbon atoms (Group 14) bond with two hydrogen atoms (Group 1) to form acetylene ( C2H2). How would each carbon atom in
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2. 36 views
Use the reaction to answer the question.CuSO4+Zn→Cu+ZnSO4 Which type of reaction is this? (1 point) Responses electronegative
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2. 10 views
A chemical reaction produces a molecule in which all of the atoms have a stable configuration. Which molecule could be the
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2. 12 views
Which statement comparing ionic and covalent bonds is correct?(1 point)Responses Elements in Group IA are more likely to form
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2. 16 views
Use the equation to answer the question.CH4 + 2O2 → CO2 + 2H2O If you change the 2 in front of 2O2 to a 3, what will be the
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2. 16 views
Use the reaction to answer the question.NaHCO3 + KCl → NaCl + KHCO3 Which charge does the HCO3 ion have? (1 point) Responses
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Use the equation to answer the question.2NH4NO3 → _____N2 + _H2O + _____O2 Which numbers balance this equation? (1 point)
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2. 19 views
Use the equation to answer the question.NaOH + FeSO4 → Na2SO4 + Fe(OH)2 Which option shows the correctly balanced chemical
1. 1 answer
2. 28 views
When oxygen (Group 16) bonds with itself (O2), how does it bond based on its valence electrons?(1 point)Responses A double bond
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2. 30 views
Use the reaction to answer the question.C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(g) Which type of reaction is this? (1 point)
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2. 17 views
Ammonia is made up of nitrogen and hydrogen. Nitrogen is in Group 15 of the periodic table, and hydrogen is in Group 1. Which
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2. 32 views
Fluorine is in Group 17 of the periodic table. Two fluorine atoms bond to form highly reactive fluorine gas, F2. Which statement
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A student writes this chemical equation. You see that it is incorrect as written.1N2 +4H2 → 2NH3 + 1H2 1 diatomic nitrogen (
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An investigation into the Battle of Lepanto reveals that which of the following was a factor in the battle’s outcome?(1 point)
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Why might investors in the British East India Company have looked toward the Netherlands for ways to improve trade?(1 point)Resp
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Which of the following best explains why the Portuguese expanded into the Indian Ocean?(1 point)Responses The Portuguese
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How does the development of maritime empires compare with the development of land-based empires in the fifteenth and sixteenth
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2. 28 views
It takes 40 mL of 0.10 M of hydrochloric acid (HCl) to neutralize 50 mL of sodium hydroxide (NaOH) for the following chemical
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A student uses the apparatus to determine the concentration of a solution of hydrofluoric acid. Which component will the student
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2. 16 views
A student uses a solution of potassium hydroxide to titrate a solution of nitric acid. Which question is the student trying to
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How does magnesium hydroxide provide relief for indigestion?(1 point)Responses Magnesium hydroxide produces magnesium chloride
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K1 2 13 14 3 19 15 16 5 7 X 20 6 8 21 17 22 18 9 10 23 24 a 11 12 e b C <13 and <2 <7 and <9 <16 and <5 <17 and <23 <10 and <13
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<13 and <2<7 and <9 <16 and <5 <17 and <23 <10 and <13 Alternate interior angles Alternate exterior angles same side interior
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<13 and <2<7 and <9 Response area <16 and <5 Response area <17 and <23 Response area <10 and <13 Response area Skip to
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In the diagram above, quadrilateral ABCD is a rhombus. If the m ∠DAB= 124 ° find the measurements below. (3 points) m∠ABC=
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“There are prophets who are worshipped and to whom everybody does reverence. The Christians say their god was Jesus Christ;
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2. 19 views
A person with kyphosis has what condition?(1 point) Responses weakening of the bones weakening of the bones humped spine humped
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2. 26 views
QuestionImmature bone cells are called: (1 point) Responses osteoblasts. osteoblasts. cartilage. cartilage. osteocytes.
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QuestionDuring his yearly checkup, Pierre’s pediatrician asks him to bend over at the waist. The doctor then runs his fingers
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2. 33 views
QuestionWhen the doctor taps your knee with a hammer to see if it reacts, what kind of test are they performing? (1 point)
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2. 32 views
QuestionWhile installing a roof, Brandon slipped and suffered a fall. He was told that he had several small fractures in his
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2. 26 views
The end part of a muscle that connects it to the bone is called the:(1 point) Responses articulation. articulation. fascia.
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2. 32 views
If AG = 7x+9 and GB = 12x - 6, find the length of AB(1 point) AB=
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Rhombus LMNOhas a diagonal line MO¯¯¯¯¯¯¯¯¯ . If the length of LO¯¯¯¯¯¯¯=5 units and MO¯¯¯¯¯¯¯¯¯=8
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2. 38 views
Given that quadrilateral ABCDis a rectangle with AC=52x and BD=2x+5 , find the value of x. (1 point) x=
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2. 70 views
To prove that all three medians of a triangle meet at the same point, the medians of each side must be found. What are the
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QuestionTriangle ABC is drawn on a coordinate plane with vertices A(−2,−3) , B(4, 0) , and C(−2, 2) and medians indicating
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The three medians of △ABCmeet at a single point. What is the point of the centroid? Express all results in fractions. (1
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Solve the following equation for x:8x - 8 = -4x + 16-100 x =
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Solve the following equation for x:7x - 5 = 3x + 15 x=
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2. 10 views
Solve the following equation for x:7(x - 9) = -21+21 x =
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2. 10 views
Solve the following equation for x:-5=3m-14 x=
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. Solve the following equation for x:-5 = 3m - 14+12 x =
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2. 12 views
Solve the following equation for x:-5 = 3m - 14+12 x =
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2. 14 views
Solve the following equation for x:4x + 7 = 23-8 x =
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2. 12 views
Solve the following equation for x:4x + 7 = 23-8 (1 point) x =
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2. 9 views
In the equation2H2+1O2→→2H2O if you change the 2H2 to 3H2 molecules and balance the equation, identify which statement is
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Which statement correctly explains why the ashes of burnt paper have less mass than the original paper?(1 point)Responses The
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2. 27 views
One molecule of calcium oxide, CaO , and one molecule of carbon dioxide, CO2 , combine in a chemical reaction to form one
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QuestionWhen iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains
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What government resource can provide information for businesses about the population of an area and the median income?(1 point)
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Information that experts in a subject review and approve before it is published is referred to as being what?(1 point) Responses
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When trying to authenticate online information, it is important to identify the author because professionals put their name on
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One of the biggest security scandals of 2018 came from which social media site?(1 point) Responses Facebook Facebook Instagram
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What data protection technique can prevent most criminals from hacking into networks?(1 point) Responses padlocks padlocks
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Ensuring employees use and change _____ frequently can greatly improve cyber security.(1 point) Responses data data passwords
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What term refers to storage for data and software on the internet as opposed to on the computer?(1 point) Responses credentials
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Backing up data is a key step in keeping digital data safe and can be done either on _____, such as a back-up drive or using
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2. 36 views
What term best refers to the process of examining large databases to find new information?(1 point) Responses data expediting
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2. 38 views
US companies doing business in the European Union are now subject to the provisions of the EU’s recently-enacted:(1 point)
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2. 38 views
In the rectangle BCDA, AE¯¯¯¯¯¯¯¯ can be expressed as 3x and ED¯¯¯¯¯¯¯¯ as −4x+21 . Identify a pattern to find
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Kite ABCDhas diagonal lines AC¯¯¯¯¯¯¯¯ and BD¯¯¯¯¯¯¯¯ that intersect at E , with BD¯¯¯¯¯¯¯¯ being the
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In parallelogram DEFG, which segment bisects EG¯¯¯¯¯¯¯¯ ? (1 point) Responses EF¯¯¯¯¯¯¯¯ upper E upper F
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In parallelogram WXYZ, the interior angle at point Y measures 30 degrees. What is the measure of the interior angle at point X ?
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In the diagram, a∥band e∥f . Sylvia writes a proof to prove that opposite angles, ∠6 and ∠11 , are congruent in the
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Consider the following proof of the Base Angles Theorem. Which statement should fill in the blank?PROOF: Given isosceles △ABC
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Sylvie has started a proof of the Triangle Angle Sum Theorem. Which answer choice correctly completes her proof?Sylvie's Proof:
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How did the Abbasid dynasty benefit from its central location?(1 point) Responses They could get to different places quickly
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How did Axum's location contribute to its growth?(1 point) Responses It was by the coast and the people could fish It was by the
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Classify by dragging and dropping the internal and external factors that led to the decline of the Roman Empire. Each term is
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Can the two triangles below be shown to be congruent using ASA?(1 point) Responses Yes, by using the triangle angle sum theorem,
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What additional information is needed to prove the triangles congruent using SAS Congruency Theorem(1 point) Responses
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What theorem can be used to prove the triangles congruent with the given information>(1 point) Responses AAS AAS SSS SSS HL HL
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A patient presents to the ER with c/o HA and LBP. The pt has a h/o neuropathy and hypopnea. She currently has no N/V and VSS.
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why do Bankers need to use exponets
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Identify at least one career in which a person works independently with exponents. You can write about a career related to your
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2. 94 views
3 of 33 of 3 ItemsQuestion Which of the following is a skill you can practice to improve your self-esteem? (1 point) Responses
1. 5 answers
2. 136 views
Which of the following is equivalent to 6^−2 ?(1 point) Responses 136 Start Fraction 1 over 36 End Fraction 126 Start Fraction
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2. 246 views