Chemistry High School

can someone help w/ chem plzz

Can Someone Help W/ Chem Plzz

Answers

Answer 1

Answer:

my answer I think is tetrahedral

Related Questions

4 points
What is the volume of an object with a density of 5.20 g/cm3 and a mass
of 6.00 x 10^2? g?

Answers

divide mass by density to determine volume. 115.384 cm^3 (unsure if you need to round.)

how many atoms of alumminum are in 3.9 mol of aluminum​

Answers

Answer:

2.35 x 10²⁴ atoms Al

Explanation:

Given 3.9 moles of aluminum (Al), determine number of aluminum atoms in that quantity of substance.

By definition a mole is the mass of substance containing one Avogadro's Number (N₀) of particles. That is, 1 mole = 1 N₀ = 6.023 x 10²³ particles*.

So, if 1 mole aluminum contains 6.023 x 10²³ atoms of aluminum then

3.9 moles Al = 3.9 moles Al  x  6.023 x 10²³ atoms Al/mole Al = 2.35 x 10²⁴ atoms Al.

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*The complete equivalent relationship is ...

1 mole (atoms or compounds) = 6.023 x 10²³ atoms or molecules = 1 formula weight of the substance = 22.4 Liters (if in gas phase at STP conditions (0°C and 1atm pressure).

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Sure hope this is understandable ... if not, kick back a note. Doc

Is hydrogen bond an attraction between polar molecules

Answers

Answer:

No because if there was an attraction hydrogen would not do it's function

What is the mass of a liquid that has a density of 124 g/mL and takes up a volume of 18 mL. What mass should the liquid have? (round you answer to the nearest hundredth)

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the mass of the liquid should have 69

What is the boiling point of water?
A. 0°C
B. 50°C
C. 70°C
D. 100°C

Answers

Answer:

D) 100*C

Explanation:

Answer:

A. 0°C

Explanation:

El agua se evapora a los 0 grados

The bouncing of a wave off an object is called a what


Answers

Answer:

Reflection-energy waves bouncing off the surface of an object

Explanation:

Practice Problem #2: How many atoms
of Ba are in 7.8 moles of Ba?

Answers

[tex]7.8 \: mol = \frac{6.02 \times {10}^{23} atoms}{1 \: mol} = 4.6956 \times {10}^{24} \: atoms[/tex]

round as you wish.

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