3 years ago

Asteroids, comets, and meteors are generally lager than a planet True or False

Chemistry

2 answers:

OLEGan [10]3 years ago

8 0

Correction *

this is false

Tems11 [23]3 years ago

7 0

False I think but at least the asteroids on the milky way that take almost 200 years to orbit the sun are and i had to google that

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How many moles Of H2O will be produced from 42.0 g of H2O2?

d1i1m1o1n [39]

$Molar{Mass} H_{2}O_{2} =2*16.0+2*1.0= 34.0 g/mol

42.0 g H_{2}O_{2}* \frac{1 mol H_{2}O_{2}}{34.0 g H_{2}O_{2}} = 1.24 mol H_{2}O_{2}

2H_{2}O_{2} --\ \textgreater \ 2 H_{2}O +O_{2}
\\2 mol ----2 mol (from// reaction)

\\1.24 mol ---1.24 mol (from the problem)

Answer: 1.24 mol H_{2}O.$