A sample of bismuth has a mass of 343g and volume of 35.0 cm3. what is the density of bismuth

Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. when 2.59 g of magnesium ribbon burns with 7.52 g of oxygen, a bright, white light and a white, powdery product are formed.

When a sponge gets wet, does it become more massive

If a chemical reaction such as the formation of iron oxide contains 4 atoms of iron (fe) in the product how many atoms of iron (fe) would be in the reactants?

Which type of mixture can be separated using a sieve? A: a homogeneous mixture with components of varying sizes B: a homogeneous mixture with components of the same size C: a heterogeneous mixture with components of the same size D: a heterogeneous

Which planet in our solar system is closest to the sun? A) Jupiter B) Earth C) Mercury D) Saturn

Write a sentence using the term atomic theory

Which of the following groups contains mostly radioactive elements? Question 5 options: nonmetals alkaline earth metals halogens inner transition metals

Who further developed Democritus's early contributions to the atomic theory by proposing that each chemical element has its own kind of atom?

Which is the best metal to use in an alloy to increase its electrical conductivity? A) Al B) Cu C) Fe D) Sb

Which of the following is chemically inert (unreactive) ? Select one: (A) carbon (atomic number 6) (B) sodium (atomic number 11) (C) neon (atomic number 10) (D) oxygen (atomic number 8)