Chemical equations must be balanced to satisfy ___.

the law of definite proportions

the law of multiple proportions

the law of conservation of mass

Avogadro's principle

Dijon Scott each improve the yards by planting rosebushes in geraniums they bought their supplies from the same store de Sean spent $100 on seven rosebushes and forge Raynham Scott spent $236 on 13 rosebushes and 12 geraniums

How many three-letter "words" can be made from 5 letters "fghij" if repetition of letters (a) is allowed?

Given the function f (x) = 3x2 - 4, what is f (-2) ? A. - 40 B. - 16 C. 8 D. 32

What is the resipercol of 70/30

You attend a local public school and surveyed your class on each of the following questions and recorded their answers. You then calculated the mean, median and range for each one.

4x-3=5x-21 what does x=

Is 30 diameters equal to 3 meters?

David invested $220 in a savings account that offers a 3% return on the investment. How many years will the value of David's investment will reach at least $400?

A bakery uses 25 cups of flour to make 8 loafs of bread. What is true about the number of cups of flour in each loaf

How many solutions does the following system of equations have? y=5/2x+2 2y=5x+4 One Two Zero Infinitely many