a. orange juice
b. tap water.
c. steel (a blend of iron and carbon)
d. air
e. raisin muffin-a homogeneous mixture cannot be separated into its parts without chemical reactions
a hetrogeneous mixture c
in example is in the cooling system of a car-density = mass / volume
if you know the mass of the sample and the volume, you can determine density and then concentration
Ethylene glycol is the most wid
Im taking chemistry this year and I was wondering if there was an easy way to remember the elements 1-45 ?-Also this helped me, i labeled what were non-metals, metals and colored the liquid elements b
Please help with #9. I cant really ask my parents cause they never took Chemistry. I cant ask my brother for help either cause he moved out.
9.) Sodium salicylate is made from carbon dioxide and sodi
If Avogadros number of pennies is divided equally among the 100 million men, women, and children in the United States, how many dollars would each receive? Assuming Avogadros number is 6.02*10^23-If y
can atoms share an odd number of electrons?-There are two explanations for this. The first has something to do with the quantum mechanical model and anti-bonding orbitals; Im afraid an explanation for
relative to a dime is .286 gram gold nugget smaller?-Definitely.
The density of gold is 19.3g/cc (cubic centimeter).
0.286g x 1cc / 19.3g = 0.015cc
If your nugget is a perfect sphere, its radius
wo
Can anyone please help me with this problem?!?
A compound contains an unknown ion X and has the formula XCl2. Ion X contains 20 electrons.
What is the identity of X?-atomic number 20 is Ca.So this
Predict the sign of ΔS°for the following reaction: Cu2O(s) + C(s) →2Cu(s) + CO(g)
A. ΔS° ≈ 0
B. Δ S°
C. Δ S°> 0
D. More information is needed to make a reasonable prediction.
I think its C, as there
When 2.686 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 9.224 grams of CO2 and 1.511 grams of H2O were produced.
In a separate experiment, the molar mass of the compo
Could you tell me which one has stronger polarity, please? I suppose water is more polar?-If a chemical is polar then the atomic structure is bent or symetrical.H2O or water is a bent shape so its pol
Ground state. Ive gotten the answers 3 and then 1. But theyre both wrong.-http://en.wikipedia.org/wiki/Niobium lists the configuration as 5s^1 4d^4 which would make 5 singles electrons.
Today I accidentally spilled a mixture of toluene and Cyclohexane on my hands during my lab class. ( i had a cut on my finger) How bad is this ?-Not bad at all. I work with both of those compounds on
What is the vapor pressure of carbon disulfide
at its normal boiling point?
1. 2.0 atm
2. 2.5 atm
3. 1.0 atm
4. 1.2 atm
5. 0.5 atm
6. 0.3 atm-3.No math required.
No matter what the substance is, when
I forgot what you call a crystal in chemistry that has the *h2o after the chemical name in it. I know of one that is blue when hydrated, and white when dried. I think its called a hydrate of something
