CHEMISTRY HIGH SCHOOL

Which of the following is not equal to 0.536 kilometers? 53.6 hectometers (hm) 536 meters (m) 536,000 millimeters (mm) 53,600 centimeters (cm)

Answers

Answer 1
Answer:

Answer:

53.6 hectometers

Explanation:

In this case, we have to write out of given options which is not equivalent to 0.536 kilometers.

1 kilometers = 1000 m

So, 0.536 kilometers = 536 meters

1 kilometers = 1000000 millimeters

So, 0.536 kilometers = 536000 millimeters

1 kilometers = 100000 centimeters

0.536 kilometers = 53600 centimeters

And 1 kilometers = 10 hectometers

So, 0.536 kilometers = 5.36 hectometers

Hence, the correct option is (a) " 53.6 hectometers "
Answer 2
Answer: I believe it would be 53.6 hectometers, but I'm not 100% sure 

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Which of the following Group 2 elements has the lowest first ionization energy?(1) Be (3) Ca(2) Mg (4) Ba
Ammonia is a weak base because it produces ___ ions in solution
Which of the following is represented in the highest percentage by volume in dry air?A. OxygenB. Carbon dioxideC. NitrogenD. Hydrogen

What is the total amount of heat required to vaporize 1.00 gram of H2O(g) at 100.0C and 1 atmosphere?(1) 4.18 J(2) 334 J(3) 373 J(4) 2260 J

Answers

for this you will need the latent heat capacity for the vaporization of water. 

Select the correct answer.John is riding a ski lift to the top of Wildcat Mountain. He removes his gloves and rapidly rubs his hands together to warm them up. What
happens when John rubs his hands?
O A. The skin on his hands rapidly conducts heat, similar to metal.
O B. He traps heat between his hands because skin is an insulator. IS
O C. The particles In his hands vibrate faster because of friction.
O D. Thermal energy moves from his fingertips to his palms.
O E. He simulates a fever that'll raise his core body temperature.

Answers

Answer:

Fairly certain it's C. The particles In his hands vibrate faster because of friction :)

Answer:

C

Explanation:

2. If an eagle is flying at a constant speed, it is accelerating. True or
False

Answers

Answer:

False

Explanation:

Answer:

:0

Explanation:

Write the name of each of the following Ionic Compounds: Ba3(PO4)2 , MgSO4 , PbO2

Answers

1. Barium phosphate
2. Magnesium sulphate
3. Lead(IV) oxide

Final answer:

Ba3(PO4)2 is Barium Phosphate, MgSO4 is Magnesium Sulfate, and PbO2 is Lead (IV) Oxide or Plumbic Oxide.

Explanation:

The Ionic Compounds you have mentioned are named as follows:

  • Ba3(PO4)2 is named Barium Phosphate.
  • MgSO4 is named Magnesium Sulfate.
  • PbO2 is named Lead (IV) Oxide or Plumbic Oxide. Always remember for ionic compounds containing transition metals (like Pb), we have to indicate the charge of the cation.

Learn more about Ionic Compounds here:

brainly.com/question/33500527

Which is the best tool to find the volume of the base that she needs to neutralize the acid

Answers

The best tool to find the volume of the base taht she needs to neutralize the acid is M1V1 = M2V2. an example is given below.

Given:

12.0 M HCl

2.0 liters of a 3.0 M HCl

Required:

volume of concentrated hydrochloric acid

Solution:

M1V1 = M2V2

(12.0 M HCl)V1 = (3.0 M HCl)( 2.0 liters)

V1 = (3.0 M HCl)( 2.0 liters)/ (12.0 M HCl)

V1 = 0.5 liters

Which of the following elements is stable? A. Boron, atomic number 5
B. Neon, atomic number 10
C. Fluorine, atomic number 9
D. Carbon, atomic number 6

Answers

Answer: Option (B) is the correct answer.

Explanation:

An atom is stable when it has completely filled orbitals. This means that K shell have 2 electrons, L shell have 8 electrons, M shell have 18 electrons and so on.

Therefore, electronic distribution of given elements will be as follows.

Boron has electronic configuration 2, 3.

Neon has electronic configuration 2, 8.

Fluorine has electronic configuration 2, 7.

Carbon has electronic configuration 2, 4.

Therefore, out of the given elements neon is stable.

The element that is stable among the options given is B. Neon, with atomic number 10.

Which is stable element?

Stability in the context of elements refers to having a filled outer electron shell, typically with eight electrons, known as an octet. Neon, a noble gas, has a complete octet with two electrons in the first shell and eight electrons in the second shell.

In contrast, elements like Boron (atomic number 5), Fluorine (atomic number 9), and Carbon (atomic number 6) do not have a complete octet in their outermost electron shells. They tend to form chemical bonds and engage in chemical reactions to achieve a stable electron configuration. Option B

Learn more about element at brainly.com/question/20096027

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