Is salad dressing a solution, colloid, or suspension?

Which is a factor that affects the size of mineral crystals formed in magma? a. rate of cooling b. fluorescence c. evaporation d. elements dissolved in hot water

A gas at 89.0 °C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 15.9 L?

The state of matter that has a definite shape and volume is?

When hydrochloric acid reacts with sodium sulfide, hydrogen sulfide gas and sodium chloride are produced. How many moles of H2S will be generated by 2.56 moles of HCl? 2HCl + Na2S → H2S + 2NaCl

If the smallest markings on a ruler are one tenth (1/10) of a centimeter, which of the following measurements could be recorded using that ruler? A. 2.5 cm B. 2.52 cm C. 2.520 cm D. 2.5200 cm

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

Which one of the following melts the fastest: rectangular prism, cylinder, and rectangular trapezoidal trough?

A 1.8-mL volume of seawater contains about 4.0 * 10^-10 g of gold. The total volume of ocean water is about 1.5 * 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.

Why are numbers placed before the elements and molecules in a chemical equation?

Which of these pairs of elements have the same number of valence electrons? oxygen (O) and bromine (Br) selenium (Se) and bromine (Br) carbon (C) and lead (Pb) oxygen (O) and carbon (C) sodium (Na) and magnesium (Mg)