Can someone help me solve these questions I will be grateful, General Chemistry

Perfeem the follasing arithinetic and round oft the aswers to the coerect mumber of a ignitcant hpares lnolude the earrect unib with the anewers. Ds not report veur anwer in scient fic notation and so not emit sero arectefin decimalipoint in case your artawer is less than one. (2.379cm1.08cm)11.45cm21.544cm Use scientific notation for this answer, e.g. the value " 1.256106" must be entered as "1.256E+6". Number Units A rectaneular block of aint weas found to be 12.744 cminide. 0.694fm hich ane a35.340 -m dent. 4, 6, and 5 6. 5, and 4 5. 4. and 6 4. 5, and 6 5, ti, and 4 Volures = Caculate the volume of this boa inurits of ft3. Volume =1n2 Zinc bas a derily of 7.140gfcm3. What would be the mass of the bou in kilogr who: Mass= How many moles of zhe are cont sined in the thock: Aviount = impl If all of the sinc were comverted to ainc phesphate, how mant krams ot this sompound wacld be deseainent? A rectangular block of zinc was found to be 12.744cm wide, 0.6948m high, and 835.300mm deep. How many significant figures are in the measurement of the width, height, and depth of the box? 4,6 , and 5 6,5 , and 4 5,4 and 6 4,5 , and 6 5,6, and 4 Calculate the volume of this box in units of cm3. Be sure to express your answer to the correct number of significant figures. Volume =cm3 Calculate the volume of this box in units of ft3. Zinc has a density of 7.140g/cm3. What would be the mass of the box in kilograms? Mass = How many moles of zinc are contained in the block: Amount = mol If all of the zinc were converted to zinc phosphate, how many grams of this compound would be obtained? Mass = 8 (2.379cm1.08cm)11.45cm21.544cm Use scientific notation for this answer, e.g, the value " 1.256106 must be entered as " 1.256E+6" ". Number Units Perform the following arithmetic and round off the answers to the carrect number of significant figures. Include the correct units with the answers. Do not report your answer in scientific notation and do not omit zero preceding decimal point in case your answer is less. than one. Voir answer is partially cerrect