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3 years ago

A food web is

Chemistry

1 answer:

Allushta [10]3 years ago

8 0

A food web is a graphic representation of all possible energy pathways through an ecosystem.

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In general, both cations and anions will __________ as you go down a group.

madam [21]

A because cation is positive and anion is negative evening it out at constant.

8 0

3 years ago

Table salt is also known as sodium chloride, because it is

Mnenie [13.5K]

Sodom chloride is an ionic compound.

<h3>What is sodium chloride?</h3>

Sodium chloride is a compound that is formed by the combination of sodium and chlorine atoms. The compound is ionic as the ions of the atoms combine. Sodium looses one electron that can now be gained by chlorine.

Since the compound is ionic, it has a high melting and boiling point. This implies that the compound could melt as high as 801 degrees centigrade. The boiling point of the compound is much higher.

We can represent the compound using the ball and stick or the space filling model. The ball and stick model of sodium chloride has been shown in the image attached to this answer.

Learn more about ball and stick model:brainly.com/question/17217225

#SPJ1

6 0

1 year ago

Which combination(s) of alkyl bromide and carbonyl compound can be used to prepare the following product by reaction of the Grig

Fiesta28 [93]

Answer:

D. only 2 and 3

Explanation:

The Grignard compound or reagent is a highly reactive compound formed from the reaction between an ether solvent containing magnesium and a haloalkane. This compound can also be used to create a C-C bond (carbon-carbon). Based on the properties and structure of a Grignard compound, the answer is option D.

7 0

3 years ago

A student increases the temperature of a 200^3 cm balloon from 60°C to 120°C. What will the new volume of the balloon be? (Be ca

Darina [25.2K]

Explanation:

Given parameters:

Initial volume V1 = 200cm³

Initial temperature = 60°C

Final temperature = 120°C

Unknown:

Final volume = ?

Solution:

According to Charles law, at constant pressure, the volume of a given mass of gas is directly proportional to temperature.

mathematically;

$\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }$

1 and 2 are the initial and final states

V is the volume and T is the temperature

convert the temperature to kelvin

T1 = 60 + 273 = 333K

T2 = 120 + 273 = 393K

Input the parameters;

$\frac{200}{333} = \frac{V_{2} }{393}$

final volume is 236cm³

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

7 0

3 years ago

What is the molar mass of a substance?

Sveta_85 [38]

Answer:

The mass in grams of one mole of a substance.

3 0

3 years ago