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lesantik [10]
3 years ago
7

Choose the letter of the choice that best completes the statement or answers the question. Elements in the same group have the s

ame __________.
A. atomic radius
B. energy level of outer electrons
C. nuclear charge
D. number of valence electrons
Chemistry
2 answers:
pav-90 [236]3 years ago
6 0
Elements in the same group have D. Same number of valence electrons.
Allushta [10]3 years ago
5 0
I think the correct answer from the choices listed above is option D. Elements in the same group have the same number of valence electrons. They have the same number of electrons in the outer orbital. They are the electrons that are involved with chemical bonding with other elements.<span>
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Explain the kinetic energy of the particles in each of the 3 main states of matter.
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If 0.35 moles of kcl was dissolved in enough water to make 0.2 L of solution, what is molarity?
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Answer:

1.75M

Explanation:

molarity = number of moles of solute/ number of L of solution =

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26 Milkweed contains a poison known as cardenolides. Monarch butterflies eat the milkweed plant and hold on to this toxic compou
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Cardenolides, with the chemical formula CH₁₈C₂₀H₁₅CHCO₂ have (D) 23 carbon atoms, 34 hydrogen atoms, and 2 oxygen atoms.

Milkweed contains a poison known as cardenolides. The chemical formula for cardenolides CH₁₈C₂₀H₁₅CHCO₂.

The subscripts in the formula represent the atomicities, that is the number of atoms of each element in each part of the formula.

We can calculate the total number of atoms of each element by adding its atomicities.

<h3>Carbon atoms</h3>

C =  1 + 20 + 1 + 1 = 23

<h3>Hydrogen atoms</h3>

H = 18 + 15 + 1 = 34

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O = 2

Cardenolides, with the chemical formula CH₁₈C₂₀H₁₅CHCO₂ have (D) 23 carbon atoms, 34 hydrogen atoms, and 2 oxygen atoms

Learn more: brainly.com/question/13348838

5 0
3 years ago
Do you think that the human being is the center of the universe?
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EXPERIMENT: THE CABBAGE INDICATOR
Nikitich [7]

Answer:

EXPERIMENT: THE CABBAGE INDICATOR

Here are your goals for this lesson:

Use indicator for each substance to determine if substance is an acid or a base

Summarize results and the experimental method

You can use the natural indicator in red cabbage juice to determine which household liquids are acids or bases. If no change in the color of the cabbage juice takes place, the liquid is neither an acid nor base; it is neutral.

Acids and bases are opposites. When an acids and base are mixed, they neutralize each other. You can use an indicator to see the neutralized reaction. The cabbage juice will change color when the liquids are neutralized.

Online Lab

This video will demonstrate how an indicator, in this case, cabbage indicator, can be used to determine whether a solution is acidic or basic. As you watch the video, remember to record your data and observations to use to present your findings.

Compile a summary of your findings from this experiment. Include your hypothesis, observations, data, and conclusions. Be sure to answer the questions below as well as explaining the method and results.

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Explanation:

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