Chemistry

Chemistry
bobrobtob
2021-03-17 20:25:00
During the presidency of George W. Bush, relations with France, Germany, and Russia were strained when those nations (1) refused to increase the s...
ANSWER
Chemistry
Bawks
2021-03-17 20:13:15
Compared to an electron, which particle has a charge that is equal in magnitude but opposite in sign? (1) an alpha particle (2) a neutron (3) a bet...
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Chemistry
riverbarden
2021-03-17 19:49:45
Which compound is an Arrhenius base? (1) CO2 (2) CaSO4 (3) Ca(OH)2 (4) C2H5OH...
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Chemistry
preciousedmonds
2021-03-17 17:52:15
Which physical change is endothermic? (1) CO2(s)-->CO2(g) (3) CO2(g)-->CO2(l) (2) CO2(l)-->CO2(s) (4) CO2(g)-->CO2(s)...
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Chemistry
nageena
2021-03-17 17:28:45
Convert 0.0489 g to mg 3.Convert 16 years to days...
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Chemistry
Garcia7878
2021-03-17 17:05:15
Who made the periodic table?...
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Chemistry
PetraLajaunie
2021-03-17 16:30:00
What is the percent composition by mass of oxygen in Ca(NO3)2 (gram-formula mass=164 g/mol)? (1) 9.8% (3) 48% (2) 29% (4) 59%...
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Chemistry
DarrickVarian441
2021-03-17 15:43:00
Which elements can react to produce a molecular compound? (1) calcium and chlorine (2) hydrogen and sulfur (3) lithium and fluorine (4) magnesium...
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Chemistry
prasetyonurhidayat
2021-03-17 05:20:15
Oceans did not exist on Earth 4 billion years ago because the surface of Earth was too ____ for the presence of liquid water. A. rocky B. hot C. c...
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Chemistry
Immikee
2021-03-17 03:34:30
Why would bacteria complete binary fission?...
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Chemistry
Elizabeth47
2021-03-17 03:22:45
What is the correct classification of a mixture in which both a solid and liquid are visible? 1: a homogeneous mixture and a solution 2: a homogen...
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Chemistry
Wolffe150
2021-03-17 03:11:00
How can a person with lactose intolerance obtain dietary calcium? A. Eat lots of fresh shellfish. B. Eat lots of whole grains. C. Take a pill t...
ANSWER
Chemistry
Talutah
2021-03-17 01:37:00
Which of the following is not a phase change? melting of snow evaporation of water from the ocean condensation of water vapor to form clouds hydr...
ANSWER
Chemistry
PattyDub133221
2021-03-17 01:13:30
can you please check my chemistry work? K3PO4 Al(NO3)3 → 3KNO3 AlPO4 How many moles of potassium nitrate are produced when 2.5 moles of potass...
ANSWER
Chemistry
nyemafreeman
2021-03-16 14:27:15
Where does digestion begin? Select one of the options below as your answer: a. stomach b. mouth c. small intestine d. large intestine...
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Chemistry
Perretti694
2021-03-16 12:41:30
every water molecule has two hydrogen atoms bounded to one oxygen atom. this fact supports the concept that elements in a compound are...
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Chemistry
cuttypie11590
2021-03-16 08:46:30
the reactivity of an alkali metal depends on the metals ability to...
ANSWER
Chemistry
Gabby666
2021-03-16 07:24:15
What is the total number of sublevels in the fourth principal energy level...
ANSWER
Chemistry
rachelvillarreal
2021-03-16 05:15:00
A scientist who solves a new problem using something already learned is being...
ANSWER
Chemistry
neenee692007
2021-03-16 01:55:15
As the density of a substance increases, the volume of a given mass of that substance__. a. Increases b. is not affected c. decreases d. fluctuat...
ANSWER
Chemistry
cutieπ
2021-03-15 23:57:45
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound...
ANSWER
Chemistry
reaganscheper
2021-03-15 22:00:15
Two grams of potassium chloride are completely dissolved in a sample of water in a beaker. This solution is classified as...
ANSWER
Chemistry
nakeriwarthen12
2021-03-15 20:38:00
In 1994, the trade deficit was over 150 billion dollars. True or False?...
ANSWER
Chemistry
babyjay22
2021-03-15 16:54:45
Consider the work of Thomson, Rutherford, and Bohr. In your opinion, which was the most important and why? Be sure to state what your selected person...
ANSWER
Chemistry
DiamondA
2021-03-15 09:04:45
What is common to all elements in the same group in the periodic table? They have the same number of neutrons They are all nonmetals They have th...
ANSWER