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4 years ago

Where are noble gases on the periodic table?

Chemistry

1 answer:

Artist 52 [7]4 years ago

5 0

Noble gases are all elements in column 18. aka far right

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One of the particles in an atom is the proton. A proton has a radius of

Charra [1.4K]

Answer:

Density = 4.06 * 10^14

Explanation:

Givens

r = 1 * 10^-13 cm

m = 1.7 * 10^-24 grams

Formula

V = 4/3 * pi * r^3

D = m/V

Solution

Put the givens into the formula.

V = (4/3) 3.14 * (1 * 10^-13)^3 Find the value for r^3

V = (4/3) 3.14 * 1 * 10^-39 Find the volume. Indicate divide by 3

V = 1.256 10^-38/3

V = 4.1867 * 10^-39

Density = m / v

Density = 1.7*10^-24/4.1867*10^-39 Do the division

Density = .406 * 10^(-24 + 39)

Density = .406 * 10^15 grams/ cm^3

Answer: Density = 4.06 * 10^14

5 0

2 years ago

Ba(CN) _<br> What is the compound

AleksandrR [38]

Barium Cynanide is the compound

7 0

4 years ago

Use the image to complete the sentences.

san4es73 [151]

Answer:

1. FASTER THAN- #2

2. WARMER THAN #1

3. OCCUR FROM SUBSTANCE B TO SUBSTANCE A- #3

Explanation:

I did the assignment On edg And got it right

4 0

3 years ago

Read 2 more answers

What is the concentration of a solution with 2.00 moles of solute in 4.00 l of solution?

jarptica [38.1K]

Explanation:

Molarity is defined as the the number of moles present in a solution divided by volume in liters.

Mathematically, Molarity = $\frac{/text{no. of moles}}{volume in liter}$

As it is given that number of moles present into the solution are 2.00 moles and volume is 4 liter. Therefore, calculate the molarity of solution as follows.

Molarity = $\frac{/text{no. of moles}}{volume in liter}$

= $\frac{2.00 moles}{4.00 L}$

= 0.5 M

Thus, we can conclude that the concentration of given solution is 0.5 M.

6 0

3 years ago

What is the mass ratio for NH3?

dangina [55]

Answer:

ratio by mass

14 3

mass ratio atomic mass

14/14 = 1 3/1=3

6 0

3 years ago