Chemistry

Chemistry
daria12345103
2021-03-21 19:00:15
A compound whose water solution conducts electricity and turnsphenolphthalein pink is(1) HCl (3) NaOH(2) HC2H3O2 (4) CH3OH...
ANSWER
Chemistry
Darrel386
2021-03-21 18:48:30
Which type of bond is found in sodium bromide? (1) covalent (3) ionic (2) hydrogen (4) metallic...
ANSWER
Chemistry
marktalaat
2021-03-21 16:39:15
Which substance contains bonds that involved the transfer of electrons from one atom to another? (1) CO2 (3) KBr (2) NH3 (4) Cl2...
ANSWER
Chemistry
Nori
2021-03-21 16:15:45
Which compound is insoluble in water? (1) BaSO4 (3) KClO3 (2) CaCrO4 (4) Na2S...
ANSWER
Chemistry
Katiexx
2021-03-21 14:30:00
Which formula represents a nonpolar molecule? (1) CH4 (3) H2O (2) HCl (4) NH3...
ANSWER
Chemistry
SuzetteCygan27
2021-03-21 14:18:15
What is the purpose of the salt bridge in a voltaic cell? A. It blocks the flow of electrons. B. It blocks the flow of positive and negative ions. ...
ANSWER
Chemistry
thehispanic
2021-03-21 12:32:30
The decay of which radioisotope can be used to estimate the age of the fossilized remains of an insect? (1) Rn-222 (3) Co-60 (2) I-131 (4) C-14...
ANSWER
Chemistry
JonellNevarrez
2021-03-21 09:59:45
What volume of 0.500 M HNO3(aq) must completely react to neutralize 100.0 milliliters of 0.100 M KOH(aq)? (1) 10.0 mL (3) 50.0 mL (2) 20.0 mL (4) 5...
ANSWER
Chemistry
rileypkozak
2021-03-21 09:48:00
what is the effect of alcohol in eners...
ANSWER
Chemistry
rayne921
2021-03-21 08:02:15
Which formula correctly represents the composition of iron (III) oxide? (1) FeO3 (3) Fe3O(2) Fe2O3 (4) Fe3O2...
ANSWER
Chemistry
Jero619
2021-03-21 06:51:45
A student intended to make a salt solution with a concentration of 10.0grams of solute per liter of solution. When the student’s solution wasanalyz...
ANSWER
Chemistry
KirillOJ
2021-03-21 02:56:45
Based on electronegativity values, which type of elements tends to have the greatest attraction for electrons in a bond? (1) metals (3) nonmetals (...
ANSWER
Chemistry
kirapoulsen
2021-03-21 01:58:00
What is the name of the process in which the nucleus of an atom of one element is changed into the nucleus of an atom of a different element? (1) de...
ANSWER
Chemistry
Clelia490
2021-03-21 01:46:15
Which of these terms refers to matter that could be heterogeneous? (1) element (3) compound(2) mixture (4) solution...
ANSWER
Chemistry
wendysamuels
2021-03-20 23:37:00
According to Reference Table N, which radioactive isotope will retain only 1/8 its original radioactive atoms after approximately 43 days? A. gold-1...
ANSWER
Chemistry
HolliRosenstock
2021-03-20 20:40:45
The strength of an atom’s attraction for the electrons in a chemical bondis the atom’s(1) electronegativity (3) heat of reaction(2) ionization en...
ANSWER
Chemistry
whildas88
2021-03-20 20:29:00
Which substance can be decomposed by a chemical change? (1) Co (3) Cr(2) CO (4) Cu...
ANSWER
Chemistry
triplelaw
2021-03-20 18:08:00
Which particles are found in the nucleus of an atom? A. electrons, only B. neutrons, only C. protons and electrons D. protons and neutrons...
ANSWER
Chemistry
Cozort8
2021-03-20 16:57:30
The substance which is dissolved in a solution is called: solvent colloids solute precipitant...
ANSWER
Chemistry
TomWarriner44
2021-03-20 16:45:45
How many total moles of KNO3 must be dissolved in water to make 1.5 liters of a 2.0 M solution? (1) 0.50 mol (3) 3.0 mol (2) 2.0 mol (4) 1.3 mol...
ANSWER
Chemistry
eileenparedes
2021-03-20 15:47:00
A chemical reaction is at equilibrium. Compared to the rate of the forward reaction, the rate of the reverse reaction is (1) faster and more reactan...
ANSWER
Chemistry
youngzombie
2021-03-20 12:03:45
Which process occurs at the anode in an electrochemical cell? (1) the loss of protons (2) the loss of electrons (3) the gain of protons (4) the g...
ANSWER
Chemistry
Mockus922
2021-03-20 10:29:45
Explain, in terms of valence electrons, why the bonding in magnesium oxide, MgO, is similar to the bonding in barium chloride, BaCl2....
ANSWER
Chemistry
Home10
2021-03-20 09:54:30
What is the total number of valence electrons in an atom of sulfur in the ground state? A. 6 B. 8 C. 3 D. 4...
ANSWER
Chemistry
Ekha07
2021-03-20 09:31:00
Which describes a step in the process of forming an ionic bond...
ANSWER