Which of these is a heterogeneous mixture?

a. air

b. soil

c. steel

d. salt water

What part of an atom bonds with other atoms? A. any electrons B. the outermost protons C. valence electrons D. the innermost electrons

How is plastic dangerous to us as a society and how is it dangerous to our planet?

In nuclear reactions, which of the following is likely to occur? Some of the mass is converted to energy. The products can weigh less than the reactants. There is no loss of mass in the reaction. a and b

Ricardo wants to determine the length of a strip of zinc metal. What is the SI unit for length? foot inch liter meter

What qualities can be used to identify binary covalent compounds?

The mass of a solid copper penny is 3.46 g. how many copper atoms are in the penny?

Consider a situation in which 211 g g of P4 P 4 are exposed to 240 g g of O2 O 2 . What is the maximum amount in moles of P2O5 P 2 O 5 that can theoretically be made from 211 g g of P4 P 4 and excess oxygen?

What is the total pressure when 0.400 g of H2, 2.00 g of N2, and 10.5 g of CO2 are injected into a 10.0 liter flask at 273 K?

The balanced chemical equation for the combustion of methane is: CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) Which of the following statements concerning this chemical equation is/are correct? 1.

In one kind of nuclear reaction, two nuclei fuse, or join together, to form a larger nucleus. This kind of reaction happens only at very high pressures. Explain why such high pressures are necessary to cause these reactions to occur.