Convert 75 cm to yards

Which of the following statement (s) are true about the atoms of any element? The number of protons in an atom of an element is unique to each element.

The color change shows this is a chemical change, because every time there is a color change this indicates a chemical change. The color change shows this is a chemical change, because adding the gas caused the unexpected color change.

Using the redox reaction below determine which element is oxidized and which is reduced. 4nh3 + 3ca (clo) 2 → 2n2 + 6h2o + 3cacl2 n is oxidized and cl is reduced cl is oxidized and o is reduced cl is oxidized and n is reduced h is oxidized and n is

When one substance changes into one or more new substances, it has exhibited a 1. chemical change. 2. chemical reaction. 3. physical change. 4. chemical property?

What is a tough, rigid, outer covering that protects some cells and gives them shape?

How many grams of sodium ions are in na2so4?

Electron configuration for iron?

Explain how melting is considered endothermic

In the process of covalent bonding, atoms share electrons. This means that * a) Electrons from each atom are attracted to the nucleus of both atoms b) Protons and neutrons attract c) Atoms lose electrons and become ions d) Atoms gain electrons and

Give the full atomic symbol for an atom that has 30 neutrons and an atomic number of 25