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Chemistry
Chemistry
College
How many moles of carbon dioxide are produced when 0.25 mole of butane is consumed?
Chemistry
High School
WIll give brainliest! : In the following Punnett square, what is the phenotypic percentages of the offspring? From dwarfism slideshow - length of legs.
Chemistry
High School
In the future what two planets will earth resemble?
Chemistry
High School
Tides are caused by gravitational interactions between the earth, sun and moon? true or false
Chemistry
College
Methane and sulfur react to produce carbon disulfide (CS), a liquid often used in the production of cellophane. 2CH + S --> 2CS + 4HSCalculate the moles of HS produced when 2.25 mol S is used.
Chemistry
College
How many grams of Pb are there in a sample of Pb that contains 1.151024 atoms? grams
Chemistry
College
How do prevailing winds affect air temperature?
Chemistry
High School
What is the formula for pH?
Chemistry
High School
What is the molarity of a solution made with 87g of Mgo dissolved in enough water to make800mL of solution?
Chemistry
College
How to find the net ionic of an equation
Chemistry
High School
what is the difference between quantative and qualitative analysis
Chemistry
High School
Halogens tend to form anions because A) losing electrons will fill their octet faster than gaining them. B) gaining electrons will fill their octet faster than losing them. C) halogen element ionization energies are lower than transition metal ionization energies. D) halogen atomic radii tend to be larger than their corresponding ionic radii. E) halogen atomic radii tend to be smaller than their corresponding ionic radii.
Chemistry
College
True or false solar power take power from wind and uses it to make electricity
Chemistry
College
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be turned on and off. Why might it be useful to be able to turn the electromagnet on and off?(1 point) 1to not waste electricityto control the strength of the magnetto reduce wearing out of the magnet over timeto latch onto and let go of objectsWhat does electric current measure?(1 point) 2how quickly electrical energy moves in a circuithow frequently electrical energy moves in a circuithow much electrical energy moves in a circuithow well electrical energy moves in a circuitHow is a magnetic field produced?(1 point) 3when an object has an electric chargewhen electrons move through a circuitwhen a current runs through a conductorwhen an electromagnetic field interacts with a magnetWhich statement best describes how an electromagnetic motor works?(1 point) 4Electrons are moved through a magnet, creating a circuit. That circuit interacts with a current, moving the conductor in the orientation of the field.Electrons are moved through a circuit, creating a current. That current interacts with a magnet, moving the conductor in the orientation of the field.Electrons are moved through a current, creating a circuit. That circuit interacts with a magnet, moving the conductor in the orientation of the field.Electrons are moved through a magnet, creating a current. That current interacts with a circuit, moving the conductor in the orientation of the field.Electromagnetism in Use Quick Check5 of 5ItemsItem 5Use the image to answer the question.A diagram shows a wire carrying a current in vertical direction. The magnetic field drawn using compass needles around the wire are concentric circles in a plane perpendicular to the direction of current.What are the particles demonstrating in this image?(1 point) 5electric fieldelectromagnetic fieldelectromagnetic motormagnetic field
Chemistry
High School
Inferring Relationships Most earthquakes takeplace near tectonic plate boundaries. Based on thehazard levels, where do you think a boundary betweentwo tectonic plates is bcated in the United States?
Chemistry
High School
Aluminum has a specific heat of 0.900 J/g.C. Lead has a specificheat of 0.13 J/g.C. If equal masses of both metals are heated to100C, which metal will absorb the most energy?
Chemistry
High School
NaOH + HCI NaCl + H20*double replacement*single replacement*synthesis*combustion
Chemistry
High School
help? It would honestly mean a lot :(
Chemistry
High School
consider the following reaction: 2Al + 6HBr --> 2AlBr3 + 3H2A) when 3.22 miles of Al reacts with 4.96 miles of HBr3, how many moles of H2 are formedB) what is the limiting reactant
Chemistry
High School
Help me please........
Chemistry
High School
How many km are in 1.29 x 10 ^-2 cm?can someone pls help me
Chemistry
High School
a geologist finds fossils in rocks that are older than the fossils and rocks of each layer beneath them what causes this situation a. uplift b.overturning of sedimentary rocks c.intrusion of igneous rocks d.seafloor spreading e.subduction
Chemistry
College
An allele is a form of a gene? true or false
Chemistry
High School
If anobject is slowing down, the velocity will bepositivezeronegativeconstant
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