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Makovka662 [10]
3 years ago
13

A leaf fell from a tree branch. The oath it followed is shown in the diagram below. Which of these best describes why the leaf f

ell in a crooked path instead of straight down?
A-the upward force of the air in the leaf was greater than the downward force of gravity.
B-objects with irregular shapes never fall in straight lines.
C-air currents and gravity applied changing and unbalanced forces to the leaf.
D-once the leaf was in motion, it continued moving in the same direction because the forces were balanced.

Chemistry
2 answers:
andrey2020 [161]3 years ago
8 0

Answer:

C-air currents and gravity applied changing and unbalanced forces to the leaf.

Explanation:

Dont trust me on this, but this is what I would choose!

I hope this helps!

Genrish500 [490]3 years ago
3 0

Answer:

Yes I would go with C

Explanation

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Answer:

c

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Identify each pair of elements as likely to participate in ionic bonding when bonded together. Use your periodic table.
alekssr [168]

Answer:

1) NaCl, 5)MgS

Explanation:

What makes something an Ionic Bond:

  • Ionic bonds are generally between two oppositely charged ions. Usually salts are formed.
  • A metal and nonmetal are also generally considered to be ionic.
  • Electronegativity also plays a role in a difference of electronegativity of elements being greater than 2.0.

For 1) Na has a charge of 1+ and Cl has a charge of 1-. They both come together to form table salt. Their electronegativity is also larger than 2.0. Also Na is a metal and Cl ion is a nonmetal.

For 2) C and O are both nonmetals and are covalent bonds

For 3) Water is a polar covalent molecule because there is a electronegativity difference between H and O, but not great. H and O are also nonmetals.

For 4) While Fe is a metal and O is a nonmetal, their electronegativity difference is not greater than 2.0. This makes it polar covalent.

For 5) Mg is a metal and S is a nonmetal. They have a large electronegativity difference. Also Mg has a charge of 2+ while S has a charge of 2-.

5 0
3 years ago
Which planet has the most prominent rings surrounding it
svlad2 [7]
B: Saturn, because it has over 10 rings.
3 0
3 years ago
18 protons<br> 22 neutrons<br> 18 electrons<br> how do i draw this ? please help ASAP.
Brut [27]

Explanation:

You need to remember a few things if you want the answer to this question...

  • A atom has a circle within a circle so consider that it looks like a double circle..
  • Protons and neutrons go in the center of that double circle..
  • Electrons go on the outer sides of the two circles.
  • Because of the given numbers of protons, neutrons, and electrons we know that the element you need to draw is Argon.

Therefore you need to draw a atom that is similar to this:

Hope this helps.

8 0
3 years ago
the actual yield of a certain reaction is 38.0 g while the theoretical yield is 50.0 g calculate the percent yield
Verizon [17]

Answer:

76%

Explanation:

Actual yield = 38.0 g

Theoretical yield = 50.0 g

Percentage yield = ?

The relationship between these quantities is given as;

Percent yield = Actual yield / Theoretical yield   *  100%

Percent yield = 38 g / 50 g    *  100 %

Percent yield = 0.76  *  100 % = 76%

8 0
3 years ago
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