What category do the majority of elements fall into?

answer:

yes: 175 pm

step-by-step explanation:

the c-cl bond length varies slightly from one compound to another.

on average, it is about 176 pm.

in ccl₄, all c-cl bond lengths are identical at 175 pm.

the number of atom present in the molecule is given by the avogadro number that is 6.022×10²³ . for the co2 , the molecule is made of 3 atom .so for the one mole of co2 there are 1.8066×10²⁴ atom.

your answer should be d. about 4 years. hope this ! =^-^=

(the light reflected from the surface of the moon takes only a second to reach earth. the sun is more than 8 light-minutes away. and so, if the light from the nearest star (alpha centauri) takes more than 4 years to reach us, we're seeing that star 4 years in the past.) quora.com

the balanced equation for the formation of water is as follows

2h₂ + o₂ > 2h₂o

molar ratio of oxygen to water is 1: 2

mass of water produced is - 46 g

therefore the number of moles of water produced - 46 g / 18 g/mol = 2.56 mol

1 mol of oxygen reacts to give 2 mol of water assuming oxygen is the limiting reactant

for 2 mol of water to be produced 1 mol of oxygen has to react

therefore for 2.56 mol of water to be produced - 1/2 x 2.56 mol = 1.28 mol of oxygen should react

mass of oxygen reacted is - 1.28 mol x 32 g/mol = 41.0 g

mass of oxygen that should react is 41 g