01/27/21

How many liters are in 72.17 g of aluminum oxide?
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01/27/21

chemistry The Gas Laws
Q1. A container of gas is initially at 0.500 atm and 25 ˚C. What will the pressure be at 125 ˚C?Q2. A gas container is initially at 47 mm Hg and 77 K (liquid nitrogen temperature.) What will the... more
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01/27/21

Convert 52.4 miles per hour to its equivalent in meters per second. Use dimensional analysis and show your work. Remember your significant figures!
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01/27/21

Trigonometry question

The angle of elevation to the top of a building in Seattle is found to be 4 degrees from the ground at a distance of 2 miles from the base of the building. Find the height of the building. ____ft?
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01/26/21

Percent yield of the reaction
Need help with this problem for homeworkUse the balanced equation2 Al + Fe2O3 --> Al2O3 + 2 FeIf you reacted 50 moles of aluminum with Fe2O3 and obtained 99.7 g of Al2O3, what would the percent... more
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01/26/21

chemistry question

The following chemical equation has NOT been balanced. zinc nitride + chlorine --> zinc chloride + nitrogen How many moles of chlorine gas are needed to react fully with 14.7 g of zinc nitride?
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01/26/21

Convert gram to number of atoms
I used 0.2 g of CaCO3, I need to convert the used amount into number of atoms.Since I need to show my conversion factors but using diagonal analysis, not sure if this is correct.0.2 CaCO3 x 1mol... more
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01/26/21

Write an equation in slope-intercept form of the line that passes through (−2, 5) and (−4, −5).
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01/26/21

Chemistry Stoichiometry

If 200.8 g of carbon dioxide gas is made from the complete combustion of isopropanol (C3H7OH), how many moles of oxygen are used up?
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01/26/21

Peter's pool table is 1 ft longer than twice its width. The area of the pool table is 15 f t2. Find the dimensions of the pool table.
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01/26/21

what is the missing value

x | 1, 2, 3, 4, 5y | 6,11,16,21,?
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01/26/21

#11 Balancing Reactions Part 1
___Na     +          ___H2O →              ___NaOH +         ___H2Please answer and explain how you got it.
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01/25/21

The question is in the description. Thank you!
a. A group of friends is going to the movies. Each ticket costs $8.00. Write an equation to model the total cost of the group’s tickets.b. Graph the equation. Explain what the x- and y- intercepts... more
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01/25/21

please help me!!!
sandra wrote the sequence 3,6,11,18,27,...what explicit expression can be used to find the nth term of this sequence?
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01/25/21

The difference of 6 and the square of a number

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01/25/21

What amount of heat, in kJ, is required to vaporize 115.00 g of ethanol ...
What amount of heat, in kJ, is required to vaporize 115.00 g of ethanol (C₂H₅OH)? (∆Hvap = 43.3 kJ/mol)
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01/25/21

Balancing Reactions Part 1
____Al   +              ____O2      →              ____Al2O3Please explain how to solve the problem and answer.
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01/25/21

Chemistry Gas Laws Hw help!!
A gas had a volume of 43.5L and 3.69mol. What do you think the final volume of the gas would be if the number of moles decreased to 1.22mol at constant temperature and pressure? What is the name of... more
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01/25/21

Need help with math

avid wants to have at least an 82 average in Math Models this six weeks. He made a 75 and a 96 on the first two tests. What does he need to make on the third test to receive at least an 82 average? *
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01/25/21

can someone help me

A) Can you think of a time when things have been quiet but not peaceful?B) Gorman writes that “the norms and notions of what just is, isn’t always justice.” What do you think this line means? Do... more
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01/25/21

POLITICS SHOULD GOVERN OVER SCIENCE DEBATE
"Politics should govern science"Explain why? Give an argumental statement.
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01/24/21

A water heater contains 57 gal of water. How many kilowatt-hours of energy are necessary to heat the water in the water heater by 25 ∘C? Express your answer using two significant figures.
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01/24/21

Consider the function f(x) = − 3(x)^2 + 3 passing through the point (-1,0)
Consider the function f(x) = − 3(x)^2 + 3 passing through the point (-1,0)Picture: https://ibb.co/rkK8L9N Graph the function h, if h is the reflection of f in the x-axis and y-axis What is the... more
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01/23/21

Chemistry mass body

a person that weighs 135 lbs, if the toxicity is 0.00045 grams per kg of body mass
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01/23/21

A Toyota Hillux Diesel has a fuel consumption of 9L/100 Km.
How much fuel will it use to travel 375Km?
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