What is (-1.7588 × 10^11 C/Kg)(1.309 × 10^-15 Kg)

What is the effect of water on rock melting?

NeTakaya

Option a is the correct answer

When the temperature of the rock rises above the melting point of minerals present in the rock results in melting of rock.

Rock contains different types of minerals having different melting points. Thus, not all the parts of rock melts at same time. Some of the minerals melt at high temperatures whereas some of the minerals melt at low temperatures. Hence, decrease in melting temperature and increase in melting temperatures due to water depends upon the composition of rock.

3 0

3 years ago

160 g or an element with a molar mass of 40 = __ moles?

IRISSAK [1]

Answer:

4 moles

Explanation:

The formula of finding moles is

moles = mass / molar mass, therefore

moles = 160 g / 40 g/mol = 4 moles

4 0

3 years ago

What mass of ag2co3 could you produce from 12.7 g agno3 assuming that it is the limiting reagent?

zhenek [66]

10.3 g of $Ag_{2} CO_{3}$ will produce from 12.7 g $AgNO_{3}$ .

In simple terms, a limiting reagent is a reactant that is completely used up in the reaction.

It is also referred to as a limiting reactant or limiting agent.

Now, according to the question,

Since it is a limiting reagent, it will react fully.

The mass of $AgCO_{3}$ that will be produced will be:-

Equivalent mole of $AgNO_{3}$ = Equivalent weight of $Ag_{2} CO_{3}$ = 12.7/169.97 = x*2/274x = 10.3 g.

Hence, 10.3 g of $Ag_{2} CO_{3}$ will be produced.

It is used to restrict the reaction.

It tells you the estimated amount of compound to be used.

It brings quantitative understanding to chemical reactions.

More information on limiting reagents can be found here :

brainly.com/question/11848702

#SPJ4

7 0

2 years ago

1. What is an indicator and how does it work?

Goryan [66]

Answer:

Chemical indicator, any substance that gives a visible sign, usually by a color change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow color to an alkaline solution.

7 0

2 years ago

In what sense is the wave motion of a guitar string analogous to the motion of an electron in an atom?

STALIN [3.7K]

Explanation:

A guitar string vibrates when we strikes it. It starts vibrating in several modes simultaneously. It stretches between the saddle and the nut. This distance represents one-half wavelength.

Now if we consider that the string forms a circle, then we have an interpretation of an electron which vibrates in the orbit surrounding the nucleus. We are aware that electrons have wavelength. If the circumference of the orbit happens to be the integer multiple of wavelength , then the orbit is "allowed" since "the electron will retraces its own path."

This explains the line spectrum and not a continuous spectrum.

A line spectrum refers an electron that jumps between the specific energy levels, thus producing only specific colors.

7 0

3 years ago