Chemistry

4. Which elements would have similar properties to potassium?A. Lithium and SodiumB. Bromine and KryptonC. Calcium and ScandiumD. Cobalt and Rhodium
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2._______ properties depend on the amount ofmatter present
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Billy is trying to figure out what type of wood to use for building a model boat. He has a block of wood with a volume of 8.0 cubic centimeters (cm3) and a mass of 4.0 grams (g). What is the density of the block of wood in g/cm3 to the nearest tenth?A 0.5B 2.0C 4.0D 32.0
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what is chemistry about
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Pleaseee help ASAPwill mark brainliest!!!
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An aqueous solution is in equilibrium with a gaseous mixture containing an equal number of moles of helium, carbon dioxide, and nitrogen. Rank the relative concentrations of each gas in the aqueous solution from highest to lowest. An aqueous solution is in equilibrium with a gaseous mixture containing an equal number of moles of helium, carbon dioxide, and nitrogen. Rank the relative concentrations of each gas in the aqueous solution from highest to lowest. [CO2][CO2] > [He][He] > [N2][N2] [N2][N2] > [CO2][CO2] > [He][He] [CO2][CO2] > [N2][N2] > [He][He] [He][He] > [N2][N2] > [CO2][CO2]
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If you do not recall the exact date of an event, it is okay to use a general time reference instead.Please select the best answer from the choices providedTF
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PLEASE HELP IM ON A TIME LIMIT!!!!Which mathematical statement shows the relationship between gravity and mass?F g ~d^/mF g~m/d^2F g ~ m/dF g ~m^2/d
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Weather is not the same as climate. Which claimidentifies the main difference between these two concepts?A. The main difference is how both are measuredB. Only weather includes information about thetemperatureC. Only climate includes information aboutprecipitationO D. The main difference is the length of time overwhich both are measured
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Helppppppp plssss guysss
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Zinc has an average atomic mass of 65.37 amu. Jack is trying to figure out what the most abundant isotope of zinc is, but he doesn't have access to the internet, so the average atomic mass is the only information he has. Jack decides to made an educated guess as to the most abundant isotope of zinc by assuming there are only two isotopes of zinc. If Jack assumes there are only two isotopes of Zn, what he be most likely to decide is zinc's most abundant isotope? Question 5 options:Zinc-64Zinc-65Zinc-68Zinc-66
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can you guys help me please? I dont get what im supposed to do here.
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helppppChemical bond formation might take place due to the interaction between a(n) _______ and an anionA.magneticB.valenceC.electrostatic D.cation
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Explain in your own words what chemical change is
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Bill Nye said the air pressure makes things what?
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Describe the three phases of matter (solid, liquid, and gas) in terms of particle spacing, ability to fill shape and volume of container, energy of particles , and strength of intermolecular forces
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Which substances from the simulation are more alkaline than water?Which
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what is the volume in cubic meter and in cubic decimeter of 2.0mol of nitrogen on gas at 1000c and 100,000pa? (R=8.31j/molk)
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I NEED HELP ASAPPPP!!!!Is a styrofoam ball heavier than a rock?Is water heavier than a ping pong ball?Is a gold ring heavier than a pencil?Is oil heavier than water?Is a large log heavier than a small rock?
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How does the snake's skull allow it to eat large prey?A. The jaw can crush the prey,B. The teeth can grind the prey.O C. The jaw can open wide around the prey.D. The teeth can lock together around the prey,
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Why does oil float and not sink?
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A scientist is studying the liquid shown here. She thinks the liquid is a mixture. Describe an investigation she could do to demonstrate that the liquid is in fact a combination of substances.( please help its due today lol! i will mark your answer as brainliest or whatever .)
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The inflation of airbags is due to the breakdown of a single chemical substance into two separate substances. Two molecules of sodium azide (NaN3) break down into sodium (Na) and nitrogen gas (N2) during the reaction. How many sodium (Na) atoms are produced in the reaction? 1 Na atom 2 Na atoms 3 Na atoms
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can someone help me im doing chemistry right now and I have a question which I have no idea how to solve and I need to show work it it needs to be shown in scientific notation (7.6x10^-1)+(2.0x10^-2)
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