Chemistry, 30.04.2021 22:10 hemriccaleb1213
Question 1 (1 point)
An element in Group 2 of the periodic table likely has which characteristics?
Question 1 options:
shiny solid, conducts heat and electricity, easily bends
shiny solid, does not conduct heat but does conduct electricity, crumbles easily
dull solid, does not conduct heat or electricity, does not bond with other atoms
gas, does not conduct heat or electricity, easily bonds with other atoms
Question 2 (1 point)
Which two elements, in looking at their atoms, have a total of 51 protons between them?
Question 2 options:
Magnesium and Aluminum
Lithium and Scandium
Tin and Hydrogen
both A and B
Question 3 (1 point)
Which of the following is an accurate description of a neutral potassium (K) atom?
Question 3 options:
19 particles in the nucleus and 39 particles outside the nucleus
39 particles in the nucleus and 19 particles outside the nucleus
19 particles in the nucleus and 20 particles outside the nucleus
39 particles in the nucleus and NO particles outside the nucleus
Question 4 (1 point)
Which of the following is an example of a chemical change?
Question 4 options:
a rock being crushed into pieces by a hammer
a rock becoming smaller over time due to wind
a rock's appearance changing over time due to exposure to acid rain
all of the above
Question 5 (1 point)
Which of the following statements is correct?
Question 5 options:
Lithium is a metal, Titanium is a nonmetal
Magnesium and Helium are gases.
Copper and Argon conduct electricity,
Calcium is malleable, Sulfur is not malleable.
Answers: 2
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Which of the following pressures is equal to 760 mm hg? 2.0 atm 101.3 pa 101,300 kpa 101,300 pa
Answers: 2
Chemistry, 21.06.2019 22:00, MrSavannahCat
Which produce would best increase the amount of heat energy that is actually gained by calorimeter b
Answers: 1
Chemistry, 22.06.2019 00:50, justabeachbum
If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?
Answers: 1
Question 1 (1 point)
An element in Group 2 of the periodic table likely has which characteristics?...
Mathematics, 06.11.2019 21:31
Mathematics, 06.11.2019 21:31
Mathematics, 06.11.2019 21:31