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4 years ago

How to plot 3.7 on a line graph?

Chemistry

1 answer:

Alchen [17]4 years ago

6 0

You check the space between 3 and 4 and graph the middle point which is 3.7

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Which is a chemical property of vinegar ?

sveticcg [70]

A chemical property of vinegar is its acidity.

Vinegard is a diluted acid. It is acetic acid in water.

Acetic acid is CH3 COOH.

The group COOH is the carboxylic group and is what tells you that a compound is an organic acid.

COOH disociates in water into COO- and H3O+.

CH3COOH + H2O ----> CH3COO(-) + H3O(+)

All the substances that dissociate in water producing hydronium groups (H3O+) are acids.

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4 years ago

What happens when sodium and chlorine react to make table salt <br><br> Please help

Julli [10]

When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.

6 0

3 years ago

A chemist prepares a solution of magnesium fluoride MgF2 by measuring out 0.0113μmol of magnesium fluoride into a 450.mL volumet

qaws [65]

Answer:

2.51x10⁻⁵ mmol MgF2/L

Explanation:

To find the concentration in mmol / L we need to convert μmol to mmol (1000μmol / 1mmol) and mL to Liters (1000mL / 1L) as follows:

μmol MgF2:

0.0113μmol MgF2 * (1mmol / 1000μmol) = 1.13x10⁻⁵ mmol MgF2

Liters solution:

450mL * (1L / 1000mL) = 0.450L

Concentration in mmol/L:

1.13x10⁻⁵ mmol MgF2 / 0.450L =

7 0

3 years ago

CHEMISTRY SMARTIES PLEASE HELP ME

Nutka1998 [239]

Hey there,

<span>A scientist triples the temperature of a gas at constant pressure. By what factor does the gas’s volume change?

I believe that when the scientist triples the temperature of the gas at a certain and constant pressure, the factor of the gas volume would change most likely with the double amount of pressure that the scientist put in the first place.

~Jurgen</span>

7 0

3 years ago

Read 2 more answers

In a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes. Determine the average relative atomic

Burka [1]

The average relative atomic mass of a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes is 9.6g.

<h3>What is Atomic mass? </h3>

Atomic mass is defined as the whole mass of an atom.

It is also defined as the sum of atomic number and number of neutrons.

Atomic mass = Atomic number + neutrons

<h3>What is Isotopes?</h3>

Isotopes are the those element which have same atomic number but have different mass number and number of neutrons.

The average relative atomic mass can be calculated as

mass of isotopes/ mass of sample

mass of all isotopes = (70 × 9X) + (30 × 11X)

=(630 + 330) X

= 960X

Average relative atomic mass = 960X/ 100 X

= 9.6 g

Thus, we concluded that the average relative atomic mass of a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes is 9.6g.

learn more about atomic mass:

brainly.com/question/14250653

#SPJ9

5 0

2 years ago