Chemistry

The picture shows a community living in a dry, grassy area. A few organisms have died off due to lack of a water source. ******Is this an example of an abiotic or biotic limiting factor? WHY
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Ms. Fremont spent last weekend grading tests . If she spent 4 min on each test , how many hours did it take her to grade all 74 tests ?
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Scientists have been able to find a full record of Earth's fossil history, thus making the fossil record complete. True or False?
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An oxidizing flame resembles the neutral flame slightly, but has an inner cone that is shorter and more pointed with an almost purple color instead of brilliant white true or false
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A cylinder contains hydrogen gas at 20 atm. How many balloons of 500 ml capacity can be filled up completely from the gas cylinder at the external atmospheric pressure of 640 mm of Hg at constant temperature? The volume of empty cylinder is 20 liters.
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Create a model of the atoms of a substance moving through the solid, liquid, and gas states.
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Think of another way that your body maintains balance when your environment (inside or out) changes. Please help meI will mark the BRAINLIEST answer!!!
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An 886 mL sample of Neon gas is at 752 torr and 299 K. What will be the new volume if, with the pressure and amount of gas held constant the temperature is increased to 371 K?
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In an electrical circuit, the presence of a resistor limits the current and preventsdamage related to short circuits.True or False
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PLEASE HELP!!! I will mark brainliest I am really struggling with these problems
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A train with an initial velocity of 31 m/s begins accelerating at rate of 0.0705 m/s^2. If the train travels for 180.5s, how far does it travel?
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Plz help me I am timed well mark brainliest if correct!!
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Which energy transformation occurs when a match is lit?AChemical energy to heat energyBHeat energy to potential energyCElectrical energy to heat energyDKinetic energy to potential energy
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what is the ionic equation for dilute hydrochloric acid and magnesium
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HELP ME PLEASE LIKE FRRR That energy can be used by plants or animals that eat plants. Energy from ___ is then passed to___.This can be seen when we observe a _________. Energy flows from____to____ when it is eaten. (Citation goes here)Please help mee and ill give you brainliest thingy
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Please Help! Brainliest!Convert the following to milligrams: 5.6 x 10-4 kilograms. Show your work on a separate sheet of paper and attachwith your assignment.
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what charge does nitrogen have
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What is the percent by mass of C in benzene (C6H6)? The molecular weight of carbon is 12.0107 g/mol and of hydrogen 1.00794 g/mol
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How many moles of nitrogen gas are present in a 28.9 dm3 temperature of 55.0 C and a pressure of 144 kPa?
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Due today!If you weigh 200 lbs on Mars how much would you weigh on Earth
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What type of organism is the common house cat?FparasiteGsaprophyteHautotrophJheterotroph
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Which type of cell can have a flagellum or cilia
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The first three half live of a chemical 2 / 2 reaction are as follows 44 min, 22 min, 11 min. What is the order the reaction?
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The dropping off of sediments in a new place is called
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