What mass of na2co3 is present in 0.650 l of a 0.505 m na2co3 solution?

Is table salt an example of sulfide mineral?

Why is peer review important when publishing experimental results? A. Peer review makes the experiment repeatable. B. Peer review is necessary for the scientific method to be followed. C. Peer review keeps the data from being biased. D.

In the video, the whale exhaled carbon dioxide, which is made of one carbon atom and two oxygen atoms. list two things a scientist might ask about the movement of carbon dioxide through the whale and its surroundings.

What can affect the properties of a substance? only the types of atoms only the arrangement of atoms the arrangement and types of atoms neither the arrangement nor the types of atoms

What does a magnetic field look like?

Suppose that you measure a pen to be 10.5 cm long. Convert this to meters.

How are amounts of hydrogen and oxygen gas made from the electrolytic decomposition of water related to the chemical formula of water?

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2 (l) → 2H2O (l) + O2 (g) ΔH = - 196 kJ Calculate the value of q (kJ) in this exothermic reaction when 3.

What is the concentration of hydronium in each of the following cases: [OH-] = 10-12 M? [OH-] = 10-2 M?

Which statement best explains why elements are matter? An element is a physical substance that has mass and takes up space. Elements are pure substances that cannot be divided chemically. Each element is a pure substance composed of one type of atom.