Chemistry, 01.09.2021 02:30 boofpack9775
A measurement is a quantitative observation involving both a
number and a unit. What is a qualitative observation? What are
the SI units for mass, length, and volume? What is the assumed
uncertainty in a number (unless stated otherwise)? The uncertainty
of a measurement depends on the precision of the measuring
device. Explain.
Answers: 3
Chemistry, 22.06.2019 00:30
This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.
Answers: 1
Chemistry, 22.06.2019 11:00
What is the molar mass of a gas that has density of 2.054 g/l
Answers: 2
Chemistry, 23.06.2019 15:00
Food can lose electrons to air. this loss of electrons can create free radicals that destroy chemical bonds, hence spoiling the food. which term describes this process?
Answers: 1
Chemistry, 23.06.2019 17:00
Liquid nitrogen is kept at a temperature of -320 degrees. when liquid nitrogen is heated it quickly boils and turns into gas. which pair of pictures represent the change caused by adding heat to liquid nitrogen?
Answers: 3
A measurement is a quantitative observation involving both a
number and a unit. What is a qualitat...
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