A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper? soap
vinegar
lemon juice
antifreeze

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

How many neutrons does a atom of cobalt have?