What is the only gaseous component of the atmosphere whose concentration is routinely contained in all weather reports?

Answers

Answer 1

Answer:

In weather report generally the temperature conditions and the extent of humidity is described. Humidity is nothing but presence of water in its vapour form. Hence the only gas which is being reported in a weather report must be water vapour. The other gases like oxygen carbon dioxide or noble gases or nitrogen are never mentioned in a normal weather report issued in public interest

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From the combinations of substances listed below, which would most likely be miscible ineach other?
(33 Points)
A.polar water, nonpolar oil
B.polar vinegar, nonpolar nail polish
C. polar bleach, polar water
D.nonpolar mineral oil, polar alcohol

Answers

Answer:

Explanation:

polar has unequal sharing of electrons that has the lone pairs which has the electronegativity difference. can be mixed with water.

Final answer:

The combination of polar bleach and polar water would likely be most miscible with each other as substances with similar molecular structures and polarities tend to mix. This is based on the rule of 'like dissolves like' in chemistry.

Explanation:

The question is asking which combination of substances would be most likely to mix, or be miscible, in one another. Miscibility is a property in chemistry relating to whether different substances can combine into a homogeneous mixture without separating.

The rule of thumb in chemistry is 'like dissolves like' which means that substances with similar molecular structures and polarities tend to be miscible with each other. Therefore, among the provided options, the combination of polar bleach and polar water (Option C) would be the most likely to mix with each other as they are both polar substances.

Learn more about Miscibility here:

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Write the name of the metric system prefix associated with each mathematical factor. Do not use any hyphens in your answers and do not abbreviate the prefixes. Spelling counts. 10^-6 ______________ 1/100 ______________ 0.001 _____________ 1000 ______________

Answers

Answer:

1. micro

2. centi

3. milli

4. kilo

Explanation:

Prefixes, in mathematical exponents, are defined as the alphabetical names associated with the mathematical factors. Some examples are as follows:

10⁶ = Mega

10⁹ = Giga

10⁻⁹ = Nano

10⁻¹² = Pico

So, in order to name the metric system prefixes associated with each of the given mathematical factor, we first convert the factor into exponent form and then write its prefix, as follows:

10⁻⁶ = micro

1/100 = 0.01 = 1 x 10⁻² = centi

0.001 = 1 x 10⁻³ = milli

1000 = 1 x 10³ = kilo

How many molecules are shown in the chemical formula pictured? H3PO4A) 1
B) 3
C) 4
D) 7