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SCORPION-xisa [38]
1 year ago
7

Use a periodic table to help you answer these questions if needed.

Chemistry
1 answer:
yuradex [85]1 year ago
3 0

Answer:

2 Al and 3 S

Explanation:

Al2S3 so 2 Al and 3 S

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If element R has 2 valence electron and element Q has 6 valence electrons, what is the likely compound that will form:
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3 years ago
A Series of choices between two characteristics that is used to identify an organism is called a
Zielflug [23.3K]

Answer: Dichotomous

Using a Dichotomous Key to Identify Organisms

A dichotomous key is a tool used by biologists to identify organisms in a group through a process of answering yes or no questions about the organism. Dichotomous means 'divided into two parts', as each question about an organism has two choices.

8 0
4 years ago
Which product forms from a reaction between beryllium (Be) and arsenic (As)?
Gekata [30.6K]

Answer:

Be3As2

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8 0
3 years ago
In the investigation "Comparing the Effects of the Products of Cellular Respiration
Marianna [84]

The solution changed color because the substances are not neutral.

<h3>pH</h3>

Chemical substances have different concentrations of the hydrogen cation, called PH.

The higher the pH, the more basic the substance, and the lower the more acidic.

Bromothymol blue is a pH indicator that changes its color according to the pH of the substance, yellow for acid, blue for basic and green for neutral.

In the case of the reactions in question, we have the release of CO2 (acid) in combustion and in cellular respiration, changing the color of bromothymol blue to yellow.

Learn more about pH in: brainly.com/question/491373

3 0
2 years ago
I have no idea what to do please help me quickly!
Irina18 [472]

Answer:

The farther away the planet the slower the revolution around the earth. the closer the faster.

Explanation:

its like a tetherball pole when it wraps around it gets closer and spins faster and faster untill it stops. Brainliest?

6 0
3 years ago
Read 2 more answers
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