Chemistry

At constant temperature and moles, what happens to the pressure of a gasas the volume of that gas increases? *
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What type of elements are ionic bonds composed of?
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is it true that Different atoms of an element have the same number of protons.
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When Mrs. Green describes the physical properties of matter she said that physical properties often concern changes in state, Onephysical property that does not describe a change in state isA)densityB)evaporationC)freezingD)melting
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EMERGENCY OR I WILL FAIL PLS HELP I WILL MARK BRAINLIEST!!!!
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What mass of chromium would be produced from the reaction of 57.0 g of potassium with 199 g of chromium(II) bromide according to the following reaction? 2 K + CrBr2 2 KBr + Cr*
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Claims Evidence Reasoning Makea claim about ways people can stay safeduring storms with high wind and heavyrains. Summarize evidence to support theclaim and explain your reasoning.
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why is the international space station in orbit
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In the graph above for the dissociation of a strong acid, why do the bars for H3O+ and A- have the same height as the bar for HA?
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It takes 300 N to move a box 10 meters in 10 seconds. How much power isrequired?A. 30,000 WB. 100 WC. 3,000 JD. 300 WPlz help
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The pressure of a gas in a cylinder when it is heated to a temperature of 250k is 1.5 atm. What was the initial temperature of the gas if its initial pressure was 1 atm?
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3 2 1 1H + 1H > 0n + ___
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If I add water to 100mL of a 0.15M NaOH solution until the final volume is 150mL, what will the molarity of the diluted solution be?A. 0.100MB. 1.2MC. 0.01MD. 52.8M
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3. Which can happen when energy is transferred from one system toanother? Choose the correct answer. *ONew energy is created.OSome energy is destroyed.OThe energy changes form.OThe energy changes into mass
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SCIENCE QUESTION: The picture below shows a satellite image of Earth from outer space.What is labeled White on the satellite image of Earth?A. gas in Earth's atmosphere, which keeps Earth's temperature moderate, cycles fluids, and prevents most objects from impacting Earth's surfaceB. gravity, which holds all living organisms to Earth, pulls water from clouds, and keeps Earth circulating around the Sun C. a magnetic field, which controls the movement of water in Earth's water cycleD. atmospheric ice crystals, which never melt and keep Earth's temperature coo
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Help Ill give you the brainiest answer thing please just give me the right answer
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46g of a mineral contained 16g copper, 14g iron and 16g sulphur. Calculate the empiricalformula of the mineral.
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Which 1.0 M solution has the lowest pH?A. HCNB. H3PO4C. H2C2O4D. HCl
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One of the biggest news stories of 1996 was the successful cloning of Dolly the sheep. Dolly was the first mammal cloned from an adult body cell. At first, Dolly appeared to be perfectly healthy. However, she died at age 6 of cancer. Dollys early death made scientists wonder whether cloned animals age faster than normal. A small flock of sheep cloned from Dolly have been observed since 2007. Happily, these clones show no sign of early aging. Choose the best option to complete the sentence. Scientists worried that cloned animals would age rapidly because their cells contain __________________ as old as the individual they were cloned from.
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Most solutions are ___ solutions.A heterogeneousB saturatedC staticD unsaturated
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The amplitude of a wave is the vertical distance from the midpoint to either the crest or thetrough of the waveTrueFalse
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For the following reaction, if you have 13.2 g of CO and 42.7g of Fe2O3, which is the limiting reagent with regards to Fe production?Fe2O3 (s) + 3 CO (g) _______> 2 Fe (s) + 3 CO2 (g)
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I have 345mL of a 1.5M NaCl solution. If I boil the water until the volume of the solution is 250mL, what will the molarity of the solution be?A. 28.5MB. 1.07MC. 2.07MD. 1.5M
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For the reaction: 2 H3PO4 + 3 Ca(OH)2 Ca3(PO4)2 + 6 H2O If you have 59.8 mL of 1.60 M phosphoric acid, how many mL of 0.500 M calcium hydroxide do you need to neutralize the acid?
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