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RSB [31]
3 years ago
6

What do alkali metals do not include

Chemistry
1 answer:
Viktor [21]3 years ago
6 0

Answer:

options?

EXPLANATION:

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In a 63.17 g sample of SO3, how many grams are sulfur?
Evgesh-ka [11]

Answer:

25.30 gram

Explanation:

No of moles = given mass / molar mass

No of moles = 63.17/80.06

0.7890 moles

Mass of sulphar = no of moles× molar mass of sulphar

Mass of sulphur = 0.7890×32.065

25.30 gram

4 0
3 years ago
The length of a vector arrow represents its magnitude and the point represents its direction
Viefleur [7K]

The answer is: True.

The magnitude of a vector is represented by the length of the arrow.

The arrow length is drawn according a chosen scale.

For example, the diagram shows a vector with a magnitude of 100 kilometers, if the scale used for constructing the diagram is 1 cm = 10 km, the vector arrow is drawn with a length of 10 cm.

The arrow has an obvious tail and arrowhead. The arrow points in the precise direction.

3 0
4 years ago
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miss Akunina [59]

Answer:

<h3>CH3OH (Methanol)</h3>

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8 0
3 years ago
Hydrogen peroxide (H2O2) decomposes into water (H2O) and oxygen gas (O2). Hydrogen peroxide is a liquid that is stored in dark-c
user100 [1]

Answer:

D

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the H2O2 under go reduction to remove O2 and then forms water

8 0
3 years ago
What does an ecosystem's nonliving surroundings include? (Select all that apply.) sun water bacteria soil
Ghella [55]

Answer: The nonliving parts of an ecosystem are called abiotic factors. Abiotic factors include water, sunlight, oxygen, temperature, and soil.

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