Chemistry

Whats the answer to 7/2 1/5?
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Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?A- increased algal blooms and damage to drinking waterB- increased plant growth and damage to drinking waterC- increase in denitrifying bacteria and increase in plant growthD- increase in a limiting resource and increase in denitrifying bacteria
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What is the name for s2o7
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What Newtons law is this a example of:When a bullet is fired from a rifle through a small explosion. The rifle shooting the bullet is pushed backwards after the explosion.
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how many Atoms of chlorine Cl are there in 3.45 mol Cl?
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What are the three components of the cell theory?
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What volume of oxygen gas at 20C and 0.919 atm isconsumed in the production of 5.00 g of iron(III) oxide frommetallic iron?4Fe(s) + 302(g) 2Fe2O3 (9)LO2
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how many moles of solute are present in 50.0 ml of 0.20 m kno3
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ILL GIVE YOU BRAINLIST * have to get it right * !!! Although individual body systems can perform specific functions, they depend on one another and work together for the good of the entire organism.Which of the following provides the best evidence that the digestive system and the muscular system work together to carry out their functions?
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which spheres are part of the earth system
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Based on the diagram below, how much of the excess reactant is left over? *2 slices of bread and 3 pieces of lunchmeat2 slices of bread and 2 slices of cheese2 of lunchmeat and 3 slices of cheese3 of lunchmeat and 2 slices of cheese
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Salt in crude oil must be removed before the oil undergoes processing in a refinery. The crude oil is fed to a washing unit where freshwater fed to the unit mixes with the oil anddissolves a portion of the salt contained in the oil. The oil (containing some salt but no water), being less dense than the water, can be removed at the top of the washer. If the spent wash water contains 15% salt and the crude oil contains 5% salt, determine the concentration of salt in the washed oil product if the ratio of crud oil (with salt) to water used is 4:1.
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PLEASE HELP ME ANY ANSWER THAT IS SAYING IDK OR SOMETHING LIKE THAT WILL BE REPORTED I NEED HELP OK FIRST TO ANSWER CORRECTLY GETS BRAINLIEST(Match the term with the definition) In E = mc2,1)mass2)kilogram3)energy4)joules5)meters/second6)speed of lighta)What does E stand for?b)What does m stand for?c)What does c stand for?d)What is the unit for E?e)What is the unit for m?f)What is the unit for c?
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List three methods that scientists canuse to develop organisms with desirable traits.
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Which diagram correctly describes the changes that occur as a small piece of rock falls from space and hits the earth
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50 points guys please help me!!!!!!
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Will someone actually help me and not just something random
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Write a hypothesis:What is the mole ratio of the cation and the anion in a precipitate?
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1. A balloon is inflated to a pressure of 2.55 atm at a temperature of 25 C. What temperature(in C) is required to maintain the same volume if the pressure decreases to 1.39 atm?
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Use the drop-down menus to identify each substance as an organic or inorganic compoundozone (O3):methane (CH4):aluminum hydroxide (Al(OH)3):butane (C4H10):carbon monoxide (CO):
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Please help me out! :))
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what happens to the density of a box full of leaves if you crush up all the leaves and place them in another boxA the density increasesB the density stays the sameC the density decreasesD the density first decreases, then increases
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What is the total amount of energy needed to heat 22.6 g of titanium from 1420oC to 1590oC in joules?
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The first step of the scientific method is A make a conclusionB make observations C state the problemD form a hypothesis E run an experiment
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