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gayaneshka [121]
2 years ago
9

What do the forms of the highlighted limbs in the illustration tell you about their functions in each animal?

Chemistry
2 answers:
iren2701 [21]2 years ago
6 0
Where are the high lighted limbs and the illustrations
kompoz [17]2 years ago
5 0

Answer: there is no image

Explanation:

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*Riddle!* *Riddle!!* *Riddle!!!*
otez555 [7]

Answer:

https://www.getriddles.com/science-riddles/

Explanation:

go to this link, you will find some answers

hope it helps!

5 0
3 years ago
Carbon dioxide (CO2) is a gas at room temperature and pressure. However, carbon dioxide can be put under pressure to become a "s
Lunna [17]

Answer:

The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

Explanation:

Step 1: Given data

The supercritical CO2 has a density of 0.469 g/cm³ (or 0.469 g/mL)

The sample hasa volume of 25.0 mL

Step 2: Calculating mass of the sample

The density is the mass per amount of volume

0.469g/cm³ = 0.469g/ml

The mass for a sample of 25.0 mL = 0.469g/mL * 25.0 mL = 11.725g ≈ 11.7g

The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

5 0
3 years ago
What is the source of the electrons produced in beta decay
Vitek1552 [10]

Answer:

Beta rays are electrons.

Explanation:

A neutron in the nucleus of  a radioactive atom decays into a proton and an electron, which is emitted from the atom.

8 0
3 years ago
When a strong acid is titrated with a strong base using phenolphthalein, the color changes suddenly at the end point. The color
larisa86 [58]

Answer:

Keto - enol tautomerism

Explanation:

Phenolphthalein is an organic molecule (formula: C20H14O4), which is used in to determine the final volume in an acid-base titration, this is, as the molecule changes from one to another color, depending on the Ph of the solution (in acids solution, the molecule remains colorless, while in basics solutions it remains pink)  :

The molecule of phenolphthalein is a week acid, which losses a proton (H+) when it´s in solution: the undissociated molecule is colorless, while the correspondent anion (without a H+) is pink. This may be simplified with the following reaction:

H₃In⁺ ⇄ H₂In (colorless) ⇄ In⁻² (pink) ⇄ In(OH) ⁻³

- When adding a base (for example, NaOH) to phenolphthalein (initially, a colorless solution), molecule losses one H⁺ and we obtain In⁻², which is pink

- When adding an acid, the original structured is recovered, so color turns from pink to colorless

This change color is not only explained with adding an acid or a base, but also with phenolphthalein structure, that leads to a keto-enol tautomerism: as molecule has 2 hydroxyl groups (- OH) and 1 carbonyl group (C = O), compounds with this structure have an equilibrium between both groups:

R1 = C H– OH ⇄  R1 – C = O

With this change, phenolphthalein structure changes and hence, color solution changes as well

4 0
3 years ago
HELP will mark as brainliest Which best explains how elements are arranged on the modern periodic
Wewaii [24]

Answer: Elements are arranged from fewest protons to most protons.

Explanation:

3 0
3 years ago
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