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danny123

Questions (27)

is a dishwasher a wheel and axle
1. 1 answer
2. 323 views
What are examples of inclined planes in the kitchen?
1. 2 answers
2. 3,326 views
How do solve (x^2/3) +1 = 9?
1. 1 answer
2. 319 views
Write x in terms of e: ln x^2 = 8.Is it e^2√2 = x?
1. 2 answers
2. 510 views
Given the balanced equation representing a reaction:Cao(s) + CO2(g) ---> CaCO3(s) + heat What is the total mass of CaO(s) that
1. 3 answers
2. 7,963 views
Which quantity of particles is correctly represented by the formula H2SO4? Explain.
1. 1 answer
2. 1,500 views
A rigid cylinder contains a sample of gas at STP. What is the pressure of this gas after the sample is heated to 410 K?a. 1.0
1. 2 answers
2. 4,696 views
What is the empirical formula of a compound that has a carbon-to-hydrogen ratio of 2 to 6?Is it CH3?
1. 4 answers
2. 646 views
The gram-formula mass of NO2 is defined as the mass of one mole ofa. one mole of NO2 b. one molecule of NO2 c. two moles of NO
1. 2 answers
2. 2,813 views
A sample of gas confined in a cylinder with a movable piston is kept at constant pressure. The volume of the gas doubles when
1. 2 answers
2. 3,468 views
What kind of figurative language is in "She pulled in her horizon like a great fish-net,". Is it both a hyperbole and a simile?
1. 0 answers
2. 434 views
At STP, a 7.49-gram sample of an element has a volume of 1.65 cubic centimeters. The sample is most likely (1) Ta (3) Te (2) Tc
1. 4 answers
2. 2,579 views
What is the only positive ion found in H2SO4(aq)?a. ammonium ion b. hydronium ion c. hydroxide ion d. sulfate ion The answer's
1. 2 answers
2. 9,113 views
Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?
1. 2 answers
2. 923 views
In calcium, the electron configuration is 2-8-8-2. Why does the 3rd level have more energy than the 2nd if they're both 8?
1. 1 answer
2. 396 views
Which element requires the least amount of energy to remove the loosely held electron from a gaseous atom in the ground state?a.
1. 5 answers
2. 4,486 views
How is the chemical bonding in Na3PO4 both covalent and ionic?
1. 1 answer
2. 1,974 views
Magnesium nitrate contains chemical bonds that are ?1. Covalent Only 2. Ionic Only 3. Both Covalent And Ionic 4. Neither
1. 1 answer
2. 4,133 views
Which formula represents a molecular compound?(1) Kr 3) N2O4 (2) LiOH (4) NaI How do you know?
1. 3 answers
2. 2,526 views
The chemical bond between which two atoms is most polar?(1) C–N (3) S–Cl (2) H–H (4) Si–O How do you find out?
1. 1 answer
2. 3,792 views
Was the middle class satisfied with the steps Napoleon took to restore order to France?
1. 0 answers
2. 393 views
How do you simplify (x^3+x^2-x-1)/(x^3-x^2-x+1)?
1. 1 answer
2. 288 views
When you simplify 5^-1(3^-2*2^-3), is it 1/360?
1. 1 answer
2. 356 views
An atom contains a total of 29 electrons. When the atom is in the ground state how many principle energy levels will contain
1. 2 answers
2. 1,727 views
What is the total number of principal energy levels or shells in an atom with an atomic number of 30? and why?(1) 3 (2) 4 (3) 5
1. 1 answer
2. 590 views
Compare the amount of heat required to vaporize a 200.-gram sample of H20(L) at its boiling point to the amount of heat required
1. 3 answers
2. 2,270 views
When you solve 6 + 5|2r-3|≥ 4, is the answer r ≥ 13/10 and r ≤ 17/10?
1. 1 answer
2. 469 views

Answers (5)

but can't you simplify that to CH3
thanks
thanks!
thanks
thanks

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