Question.2

4) If a person is riding a bike and want to slow down, they use the brakes. This is an example of which of the following?

Vlad1618 [11]

Answer: C A B

Explanation:

4 0

3 years ago

What do the coefficients in front of the reactants and products in a chemical reaction represent ?

makvit [3.9K]

It indicates the number of moles of reactants and products

Explanation:

The coefficients in front of the reactants and products in a chemical reaction represents the number of moles of reactants and products.

Every reaction is made up of equal number of moles of reactants and products. Thus, chemical equations are written in such a way to obey the law of conservation of matter.

The numbers used are usually whole numbers and the are very important in stoichiometry.

learn more:

Number of moles brainly.com/question/1841136

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4 0

3 years ago

What does the arrangement of the periodic table help scientists see?

lina2011 [118]

The relation between the elements electro negativity, atomic radius, and ionization energy levels.

7 0

4 years ago

30 mL of 0.6 M HCl solution is neutralized with 90 mL NaOH solution. What is the concentration of the base? Show all work Please

skad [1K]

From

na=1

nb=1

Va=30mls

Vb=90mls

Ma=0.6M

Mb=?

from

Mb=Ma×Va×nb

 Vb×na

Mb=0.6×30×1

 90×1

mb=18

 90

Mb=0.2M

NaOH=40

From

conc=molarity×mr

conc=0.2×40

conc=8g/mol

3 0

3 years ago

Explain why the metals conduct electricity.

aleksley [76]

Answer:

Metals conduct electricity because they have free Electrons in them which helps the current to move eaisily

6 0

3 years ago