Which of the following is an example of conservation of mass?

A. mass before = 3g mass after = 3g

B. mass before = 4g mass after = 3g

C. mass before = 6g mass after = 12g

If you are given 1.709 moles of solute, and you dilute it to make 2.10 liters of solution, what is the resulting molarity (M) ? (Answer to the nearest 0.001M,

What are some expirements to determine if a compound is covalent or ionic?

Which time is equivalent to 3 years? A. 9.4 * 107s B. 1.6 * 106s C. 3.0 * 107s D. 6.3 * 106s

Given a unsorted list of 1024 elements, what is the runtime for linear search if the search key is less than all elements in the list?

How much HCL exists in 172 mL of 0.95 M solution of HCL? Answer in units of mol.

If EG = 19 and FG = 12 then EF = ?

Given the following reaction: 4Fe + 302 → 2Fe2O3 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2? grams (round to three significant figures)

Which Group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules? 1. oxygen 2. selenium 3. sulfur 4. tellurium

How many hydrogen atoms are in 2.80 mol of ammonium sulfide?

What is a large oval structure that directs all of the cells activities?