Lead has a density of 11.3g/cm3 and a mass of 282.5 g. what is its volume? A. 2.5cm3 B. 25cm3 C. 250cm3 D. 2500cm3

How many grams of H2SO4 are needed to react with 0.75 moles of NaOH?

470,809 mi express in an integer

Write the chemical symbol for the ion with 12 protons and 10 electrons

Why are metals malleable, ductile, and good conductors

Which compound is classified as a hydrocarbon? (1) butanal (3) 2-butanol (2) butyne (4) 2-butanone

A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms