6. when multiplying and dividing measured quantities, the number of significant figures in the result should be equal to the number significant figures in___. a) all of the measurements b) at least and most precise measurements c) the most precise measurement d) the least precise measurement

Answers

Answer 1

Answer:

The correct option is D.

Significant figure refers to the number of digits that are used to report a measured quantity. The amount of a significant number in a measurement always equal to the number of digits that are known with some degree of confidence and the last number, which is usually an estimate. When carrying out calculations with significant figures measurements, one must be careful to report the number of significant figure to reflect the least precise measurement.

Answer 2

Answer: The least precise measurement.

When figuring out how many significant figures to go to, you always use the least amount of sig figs in the question so the least sig figs means the least precise.

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How many grams of methane are needed to form 33.6 L of carbon dioxide

Answers

If you suppose standard temperature and pressure, 1 mol = 22.4 liters.

33.6 liters* 1mol/22.4liters = 1.5 mols.

Molar mass of carbon dioxide: 12 g/mol + 2x16 g/mol = 44 g/mol

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Describe what happens to a hydrogen bond between two water molecules

Answers

Explanation:

Hydrogen atoms of one water molecule are attracted towards the oxygen atom of a neighboring water molecule can be termed as an intramolecular bond.

Generally, the oxygen atom is partially negatively charged, and the hydrogen atom is partially positively charged, so an arttraction occurs which forms this hydrogen bond. The attraction of the O-H bonding electrons towards the oxygen atom leaves a deficiency on the far side of the hydrogen atom relative to the oxygen atom. The result is that the attractive force between the O-H hydrogen and the O-atom of a nearby water molecule is strong.

H e l p,,, ill give brainliest :)

Answers

Hi there! :)

Both are compounds.

$CO_(2)$ contains 1 carbon (C) atom and 2 oxygen (O) atoms.

It contains two different elements, so it is a COMPOUND.

$Na_(2) O$ is an IONIC compound with elements Sodium (Na) and Oxygen (O), which are different elements. Therefore, it is also a COMPOUND.

out of barium, chlorine, iodine, and strontium which atom has the strongest attraction for electrons in a bond formation?

Answers

Out of the choices given, the correct answer would be chlorine. It is the atom with the strongest attraction for electrons in a bond formation. This is because it has the highest electronegativity among the choices.

The pigment which determines skin color is .

Answers

The pigment which determines skin color is Melanin

melanin , as far as I know

Using the following phase diagram, which line segment describes the interface between solid and vapor?A-B

B-C

A-B-C

B-D

Answers

In the given phase diagram, the line segment that describes the interface between solid and vapor is A-B. The rest of the choices do not answer teh question above

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