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Genrish500 [490]
2 years ago
13

PLEASE HELP- CHEMISTRY QUIZ

Chemistry
1 answer:
jonny [76]2 years ago
5 0

Answer:

•Li2S is at a low melting point

•NCL3 is a covalent bond

Explanation:

Just some notes to help you:))

Covalent Bonds: A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons

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What reagent is <br>used to test for starch<br>​
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Answer:

iodine

Explanation:

In the presence of starch, iodine turns a blue/black colour. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test. For example, if iodine is added to a peeled potato then it will turn black. Benedict's reagent can be used to test for glucose.

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3 years ago
The main product of the photosynthesis reaction is
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Explanation: Because after photosynthesis (Carbon dioxide, water, and sunlight) react, they make two products. Glucose (A sugar) and Oxygen.

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2 years ago
A ___ such as h20 is a symbol that shows the elements in a compound and the ratio of atoms
KATRIN_1 [288]
I think the answer is 15
4 0
3 years ago
Can someone help me with this
Feliz [49]

Answer:

phosphorous- 5

calcium- 2

nitrogen- 3 or 5

iron- 8 (transition metals use subshells as valence electrons)

argon- 8

potassium- 1

helium- 2

magnesium- 2

sulfur- 6

lithium- 1

iodine- 7

oxygen- 6

barium- 2

aluminum- 3

hydrogen- 1

xenon- 8

copper- 1

Source: my own chemistry notes

3 0
2 years ago
Fill in the blank.
labwork [276]

Answer:

Kinetic energy, Kelvin temperature, direction, warmer, cooler, Kelvin, Absolute zero

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THe answers are in order and when there is a comma move to the next ______

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