Can just one measurement be considered precise? Can just one measurement be considered accurate?

If your lab procedure instructs you to add two parts of acid to each one part of water and you start with 25 ml of water, how much acid will you add, and how will you add it

Methane (CH4) is the main component of natural gas. It is burned for fuel in a combustion reaction. The unbalanced combustion reaction for methane is shown below.

As you move down a group the ionization energy increases and as you move across a period from right to left your ionization energy level also increases

How many bromine atoms are present in 39.0 g of ch2br2?

The failure to regulate the pH of the blood can affect the activity of enzymes that clot blood red blood cells that make antibodies chlorophyll that carries oxygen in the blood DNA that control starch digestion in the blood

Explain the difference between two types of elements with respect to the atoms

The ro - group is the nucleophile. think about which group in the alkyl halide (iodoethane) is the leaving group. keep in mind that the leaving group may be one atom or a group of atoms.

An organic compound is classified as aromatic if it cyclic and has a fragrant odor true or false

Which subatomic particles differ in number for two isotopes of the same element, and which subatomic particles will stay consistent between two isotopes of the same element? Explain how you know.

What is the oxidation state of an individual phosphorus atom in PO33-?