1t= ____kg 0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg
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1t=____kg0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg1t=____kg0.31kg=____g,2.5g=
1t= ____kg 0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg
1t= ____kg 0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg
1t= ____kg 0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg
0.1t= 100kg
0.31kg=310g
2.5g=2500mg
0.45t=450kg=450000g
20mg=0.02g=0.00002kg
7300kg=____t 0.25kg=_____g 1t=____kg 1g=____kg 1mg=___kg 用( )*10几次方
1t= ____kg 0.31kg=____g,2.5g=______mg,0.45t=___kg=________g,20mg=____g=__kg
1mL=____cm³ 0.5cm³=____m³ 0.05t=____kg 2.7g∕cm³=____kg∕m³
1k/cm^3=____kg/dm^3
1t=( )kg
1k/cm^3=____kg/dm^3=________t/m^3
9*10^7kwh相当于完全燃烧____kg的标准煤所释放的能量 (标准煤的热值为3.0*10^7J/kg,1kwh=3.6*10^6J)
化学填空题12(1)某钢厂欲配制20%的硫酸溶液500kg,已有50%硫酸100kg,还需要98%的浓硫酸____kg,水____kg.(2)t`C时,将105g硝酸钾溶液蒸发掉10g水后,析出2g晶体;在相同温度下,若将原105g溶液蒸发掉12g水,析出
2x10^4g=____kg=____mg 换算
2x10^4g=____kg=____mg 换算
500ml 乘以 0.8g/cm³=____kg
4.45g/cm^3=____kg/cm^3
1.29*10^-3g/cm^3=____kg/m^3
4.02t=()t()kg.
0.35t=( )kg
1.6t= kg
450kg=( )t
3000kg=( )t