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PLEASE HURRY IM TIMED Which type of change cannot be reversed?physical changechemical change
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Please answer fast, I will give brainliest if correct!
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PLEAS HURRY IM TIMED If something moves around and takes the shape of the container it is in, it is most likely agasliquidSolid
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13 points + brainliest if you get this right! Fill in the blanks:Are you my appendix?Cause I have a ___ feeling I should ____ you out! Love,Karina
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PLEASE HELP ME SCIENCE I AM HORRIBLE AT HELPPPPP
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What causes a spectrum of colors to appear when light moves through aprism?
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Choose the combination of factors that creates fog. Record the description of the factors in the Student Guide,Relative HumidityAir TemperatureAir PressureCheckPause
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Is Spinach Quiche an Element , Compound , Heterogeneous, or a Homogenous
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is phosphorus a pure substance or mixture kid friendly
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10.7g of C2H2 --> g CO21. List down the steps to determine the grams (g) of CO2 produced from the reaction of 10.7g of C2H2. Describe the steps in complete sentences
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The compound cobalt (II) sulfate forms a hydrate with seven water molecules per formula unit. What are the name and formula of the hydrate
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Learning ObjectivesIn this activity, you'll practice determining the limiting reagent for a reaction between silver nitrate and copper metal. In part 1 you'll make the measurements you need so you can predict the amount of silver produced. In part 2 you'll be able to measure how much silver was actually produced. Finally you will be asked to consider possible reasons for the discrepancy.Part 1: Describe the ReactionIn this activity, you will be observing a reaction where copper and silver nitrate react to form copper (II) nitrate and silver.1.Write a balanced chemical equation for this reaction.2AgNO3 Cu -> 2Ag Cu(NO3)2Score: 0 / 12.
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Guys pls help me ill give 10 points Why are important documents stored in an environment without air from the atmosphere?
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During radioactive decay, the __________ isotope decays into a ____________ isotope that has a different ___________________ number.
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90 POINTS FOR A SCIENCE PROJECT.For this assignment, you will research two land resources that are used to meet the energy needs of thenation. You will compare these two sources using cost-benefit analysis. Based on your analysis, you willdetermine which energy source is better. You will then write a paper to share the information youresearched, your analysis, and your conclusion. In 2015, the United States produced 89 quadrillion British thermal units (Btu) of energy from differentsources. Coal accounted for 21% of this production, and 32% is from natural gas. The production anddevelopment of these resources involve costs. Coal and natural gas extraction and production also haveenvironmental and human health implications.
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Calculate the volume, at STP, of a 0.950 g sample of Carbon Monoxide gas, CO.
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Calculate the heat change in calories for vaporization of 30.0g of water at 100degrees C
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a graduated cylinder is filled to the 40.00 ml mark with mineral oil. The masses of the cylinder before and after the addition of mineral oil are 124.966g and 159.446g. In the seperate experiment, a metal ball bearing of mass 18.713g is placed in the cylinder and the cylinder is again filled to the 40.00ml mark with the mineral oil. The combined mass of the ball bearing and mineral oil is 50.952g. calculate the density of the ball bearing
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Name the N-terminal and C-terminal residues for the following peptide sequence. Peptide sequence: EASY View Available Hint(s) Name the N-terminal and C-terminal residues for the following peptide sequence. Peptide sequence: EASY Aspartic acid is the N-terminal residue; tyrosine is the C-terminal residue. Glutamic acid is the N-terminal residue; tyrosine is the C-terminal residue. Tyrosine is the N-terminal residue; glutamic acid is the C-terminal residue. Glutamic acid is the N-terminal residue; tryptophan is the C-terminal residue
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The height of a wave is called its amplitude. From the noises of the mosquito and the air boat, which aspect of sound is related to amplitude?**PLATO QUESTION**
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is phosphorus a pure substance or mixture
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Please please help me with answer I will give you Brainly
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what is one of the causes of mechanical weathering
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Calculate the molarity of a solution prepared by dissolving 13.0 g of Na2CrO4 in enough water to produce a solution with a volume of 800. mL .Express the molarity to three significant digits.
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