Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
15
×
How many atoms are there in 2 moles of oxygen gas (O2)? (Avogadro's number = 6.002 x 10^23)
2.41 x 10^24 atoms
Oops!
Check
Okay!
Check
5
×
Balance the equation: H2 + O2 => H2O
2H2 + O2 => 2H2O
Oops!
Check
Okay!
Check
×
heart
Other team wins 5 points!
Oops!
×
shark
Other team loses 20 points!
Okay!
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 20 points!
Oops!
20
×
Calculate the molar mass of H2O.
18 g/mol
Oops!
Check
Okay!
Check
25
×
Solve for y: 3y - 8 = 2y + 5
13
Oops!
Check
Okay!
Check
10
×
A wave has a frequency of 50 Hz and a wavelength of 4 m. What is its speed?
v = frequency x wavelength = 50 x 4 = 200 m/s
Oops!
Check
Okay!
Check
10
×
Find the perimeter of a rectangle with a length of 8 cm and a width of 5 cm.
26
Oops!
Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
gold
Win 50 points!
Okay!
×
gift
Win 5 points!
Okay!
×
banana
Go to last place!
Oops!
25
×
How many moles are in 36 g of H2O?
2
Oops!
Check
Okay!
Check
20
×
A force of 15 N is applied to an object, causing it to accelerate at 3 m/s^2. Find its mass.
m = F/a = 15/3 = 5 kg
Oops!
Check
Okay!
Check
15
×
Find the area of a circle with a radius of 7 cm.
153.86 cm2
Oops!
Check
Okay!
Check
10
×
If 5 g of NaCl is dissolved in 100 g of water, what is the mass percentage of NaCl in the solution?
4.76%
Oops!
Check
Okay!
Check
×
monster
Reset all scores!
Oops!
×
magnet
Take 15 points!
Okay!
×
shark
Other team loses 20 points!
Okay!
×
banana
Go to last place!
Oops!
25
×
How many grams of NaCl are in 0.5 moles?
29.25 g
Oops!
Check
Okay!
Check
20
×
Calculate the gravitational force on a 2 kg object on Earth (g = 9.8 m/s2)
F = mg = 2 x 9.8 = 19.6 N
Oops!
Check
Okay!
Check
15
×
A box is pushed with a force of 10N and moves 5 m. How much work is done?
W = F x d = 10 x 5 = 50 J
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies
