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love history [14]
2 years ago
7

How many valence electrons are in an atom. Of each element in group 15 in the periodic table.

Chemistry
1 answer:
oee [108]2 years ago
6 0

Answer:

Five

Explanation:

All group 15 elements have five valence electrons, but they vary in their reactivity.

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Classify each property as intensive or extensive. Color, temperature, volume, hardness, mass, boiling point, length, density
mr_godi [17]

Answer:

Intensive properties can be used to help identify a sample because these characteristics do not depend on the amount of sample, nor do they change according to conditions.

Explanation:

Intensive properties are bulk properties, which means they do not depend on the amount of matter that is present. Examples of intensive properties include:

Boiling Point

Density

State of Matter

Color

Melting Point

Odor

Temperature

Refractive Index

Luster

Hardness

Ductility

Malleability

3 0
3 years ago
Read 2 more answers
Is the following equation balanced? FeCl₃ + MgO → Fe₂O₃ + MgCl₂<br> A.<br> Yes<br> B.<br> No
VARVARA [1.3K]

Answer:

The answer is B) No.

Explanation:

The equation balanced is:

2 FeCl₃ + 3 MgO → Fe₂O₃ + 3 MgCl₂

Equation balancing can be done by "trial and error" or by algebraic method.

In this way the equation is balanced on both sides having:

2 atoms of Fe, 6 of Cl, 3 of Mg and 3 of 0.

4 0
3 years ago
A teacher cut an apple into three wedges of the same size.She dipped one wedge in lemon juice, dipped another in water ,and left
jasenka [17]
It’s national park and I have to do the same as I have to get some money drops and then we will have a lot to go back on and I get the same
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3 years ago
Sibling rivalry may occur when:
sweet [91]

Answer:

Explanation: true

7 0
3 years ago
Calculate the molarity of an hcl solution if a 10.00 ml sample requires 25.24 ml of a 1.600 m naoh solution to be neutralized.
AlladinOne [14]

Answer:

The molarity of the HCl solution should be 4.04 M

Explanation:

<u>Step 1:</u> Data given

volume of HCl solution = 10.00 mL = 0.01 L

volume of a 1.6 M NaOH solution = 25.24 mL = 0.02524 L

<u>Step 2:</u> The balanced equation

HCl + NaOH → NaCL + H2O

Step 3: Calculate molarity of HCl

n1*C1*V1 = n2*C2*V2

Since the mole ratio for HCl and NaOH is 1:1 we can just write:

C1*V1 =C2*V2

⇒ with C1 : the molarity of HCl = TO BE DETERMINED

⇒ with V1 = the volume og HCl = 10 mL = 0.01 L

⇒ with C2 = The molarity of NaOH = 1.6 M

⇒ with V2 = volume of NaOH = 25.24 mL = 0.02524 L

C1 * 0.01 = 1.6 * 0.02524

C1 = (1.6*0.02524)/0.01

C1 = 4.04M

The molarity of the HCl solution should be 4.04 M

6 0
3 years ago
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