What causes warm air to rise?
a. The fact that it's less dense than cold air.
b. The fact that it weighs more than cold air.
c. The fact that it has higher pressure than cold air.
d. The fact that it's more dense than cold air.

Answers

Answer 1
a. The fact that it's less dense than cold air.
Answer 2
The answer is a because it reverses depending on the temperature

Related Questions

which one is ittt? help please:)

Answers

Answer:

b

Explanation:

Draw the Lewis structure for AB4

Answers

Look it up that’s what I did
Hope this really helps you

As one object gets closer to another object , the force of gravity will increase ......


True or false

Answers

Answer:

true

Explanation:

hope that helped!!

The answer is true to the question asked

Please help! I really need help on this!​

Answers

Answer:

I wanna say c

Explanation:

It makes the most sense, because non-metals don't produce an electrical current, and therefore aren't conductors.

If a section of DNA has 15% thymine, how much adenine will it have?
1. 15%
2. 30%
3. 60%
4.85%

Answers

Answer:

15% adenine

Explanation:

Thymine and adenine are a nitrogenous base pair so they would equal the same.

30% I think, although I am not quite sure

how does a drupe fruit differ from a hesperidum fruit. ​

Answers

Answer:

hi

Explanation:

Answer:

Fleshy Fruits: All of most of the ovary wall (pericarp) is soft or fleshy at maturity. ... partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. ... This is a very common dry fruit found in many different plant families.

Explanation:

How is space like a vacuum?​

Answers

The vacuum of outer space is not caused by the expansion of the universe, but is caused by gravity. ... There would still be things like vacuum fluctuations, gravity, and dark matter, which can't be sucked out. With that said, outer space is very close to empty compared to earth's atmosphere.

1.25 x 10^12 molecules H2SO4 to moles

Answers

Answer:

2.08 × 10⁻¹² mol H₂SO₄

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

1.25 × 10¹² molecules H₂SO₄

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                              [tex]\displaystyle 1.25 \cdot 10^{12} \ molecules \ H_2SO_4(\frac{1 \ mol \ H_2SO_4}{6.022 \cdot 10^{23} \ molecules \ H_2SO_4})[/tex]Multiply/Divide:                                                                                               [tex]\displaystyle 2.07572 \cdot 10^{-12} \ moles \ H_2SO_4[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

2.07572 × 10⁻¹² mol H₂SO₄ ≈ 2.08 × 10⁻¹² mol H₂SO₄

Pure metals are _____.

used less often than alloys

are more resistant to corrosion than alloys

used more often than alloys

harder than alloys

Answers

Answer:

Pure metals are those metals that have not been alloyed with other metallic elements; commercially pure metals are 99% pure minimum.

Explanation:

Limonene is an oil from oranges and lemons. Click on all the carbon


atoms its structures that have a trigonal planar molecular geometry.

Answers

Answer:

See explanation

Explanation:

Limonene is an oil from oranges and lemons. Its structure has been shown in the image attached to this answer.

There are two different groups of carbon atoms in limonene. One group of carbon atoms are sp2 hybridized while the other group are sp3 hybridized. The group of carbon atoms that are sp2 hybridized have a trigonal planar geometry and have been accurately labeled in the image attached while the carbon atoms that are sp3 hybridized were also labelled and have a tetrahedral geometry.

Hence in limonene, there are trigonal planar and tetrahedral carbon atoms.

LINKING IN
TECHNICAL OBJECTS
1 a) What is linking?

Answers

Answer:

A link is a fastening unit that attaches two parts of an object together

Different types of links have different characteristics

Answer:

Linking is the process of combining all the component object files. The linker determines where the code will reside in memory and how control will transfer between the components.

the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air​

Answers

It’s between c and a

True or False: Photosynthesis can happen anytime, regardless of the amount of reactants present or the presence of sunlight.

Answers

the answer is false .

Answer:

This is false

Explanation:

Im in bio and we just learned this lol

D. conduction and induction
8. Which phrase describes grounding?
A. charging an object by polarization
B. providing a safe path for electrons to flow
C. changing a substance from a conductor to an insulator
D. using a device that prevents the flow of electric current

Answers

The answer that you are looking for is

Answer:

B

Answer:

D

Explanation:

using a device that prevent the flow of electric current.

This is your answer because it describes it

a. Identify the type of reaction shown:

Li + CaCl2 ---> LiCl + Ca

Answers

Answer:

single-replacement reactions

Explanation:

A single-replacement reaction is defined as a chemical reaction in which one strong element replace the other weak element.

The given chemical equation Li + CaCl2 ---> LiCl + Ca is an example of single-replacement reactions  in which Lithium (Li) is stronger than Calcium (Ca) and replaces calcium to form bond with Chloride.

Hence, the correct answer is "single-replacement reactions".

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