23x4 is equal to 92.
The word evaluate simply means 'find the value of...' For example, if asked to evaluate 23x4, the answer is 92.
That's easy: the answer is 92! 10x4 is 40 20x4 is 80 3x4 is 12 80+12=92! Or you could do it this way: 23 x 4 92 1
are you sure you don't mean 4.501023 moles of Cl2? If you're sure, m=(35.45/(6.023X10^23X4)) which is a very small number. Again though, I'm pretty sure you wrote the question wrong
the four times table is incredibly easy! ill tell you them up to 26 1x4=4 2x4=8 3x4=12 4x4=16 5x4=20 6x4=24 7x4=28 8x4=32 9x4=36 10x4=40 11x4=44 12x4=48 13x4=52 14x4=56 15x4=60 16x4=64 17x4=68 18x4=72 19x4=76 20x4=80 21x4=84 22x4=88 23x4=92 24x4=96 25x4=100 26x4=104 i could go on and on. hope this helps!