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Bezzdna [24]
3 years ago
5

The elements in group 2 all have _ valence electrons. A.2 4 6 8

Chemistry
2 answers:
Vlada [557]3 years ago
5 0

Answer:

2 valence electrons

Explanation:

JulijaS [17]3 years ago
4 0

Answer:

2 valence electrons,

Explanation:

For example magnesium Mg.

Mg readily loses  the 2 valance electrons to form Mg2+ which combines , for example, with chlorine to form the ionic  compound MgCl2.

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A certain amount of gas is trapped in a nonrigid container at atmospheric pressure. If the container is cooled and the gas in th
Akimi4 [234]

Answer:

D. The volume of the container will decrease.

Explanation:

  • We apply here, the general gas law of ideal gases:

<em>PV = nRT,</em>

where, P is the pressure of the gas.

V is the volume of the container.

n is the no. of moles of the gas.

R is the general gas constant.

T is the temperature of the gas.

  • We are given that P is constant.

Also, n is constant as there is no added external gases.

T is decreased as the container is cooled.

So, the volume will change as the container is nonrigid.

<em>V α T.</em>

The volume is directly proportional to the temperature,

<em>Thus, as the container is cooled, the T will decrease, and the volume of the container will decrease.</em>

8 0
4 years ago
What do you think the biggest risk with genetic engineering is?
katrin2010 [14]

Answer:

Harmful toxins from crops have been found in peoples blood.

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Its dangerous to mess with nature this way when it should be a natural thing.

Explanation:

I'm in both Biology and Chemistry so I know a lot!

8 0
3 years ago
A Starting substance in a chemical reaction is called a _______________.
djverab [1.8K]

Answer:

1.)REACTANT

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5 0
3 years ago
Why was the measurement unit for metal content in Experiments 1 and 2 different? In Experiment 1:
olya-2409 [2.1K]

To identify why a metal measurement was different in the experiments look for the variable that was different in the experiment and analyze how this change affected the results.

<h3>What is an experiment?</h3>

An experiment is a procedure that aims at probing or discovering something. For example, you can test if a plant grows faster/slower by using an experiment.

<h3>What causes different results in similar experiments?</h3>

The most common cause for this situation is that one of the factors or variables is slightly different. For example, if I add 50mL of water to a plant rather than 20mL of water every day this might cause different results.

Based on this, if the metal content was different you should analyze if any of the factors changed in this experiment and find out how this change affected the general results.

Note: This question is incomplete because there is limited information about the experiment; due to this, I answered it based on general knowledge.

Learn more about experiments in: brainly.com/question/13270830

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2 years ago
Otra manera para llamar la aceleración negativa es_______
enyata [817]

Answer:

creo que es cinemática, eso creo

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3 years ago
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