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Leni [432]
3 years ago
10

Help with questions 9,10,11

Chemistry
2 answers:
Mars2501 [29]3 years ago
7 0
The answer is B A C for the questions
Leya [2.2K]3 years ago
3 0

Answer:

B

A

C

Explanation:

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What’s Silicon’s melting point?
torisob [31]

Answer:

2,577°F

Also,

Boron: 3,769°F (2,076°C)

Neon: -415.5°F (-248.6°C)

Beryllium: 2,349°F (1,287°C)

8 0
3 years ago
Read 2 more answers
Sort the phrases based on whether they describe or give an example of diffusion, facilitated diffusion, both, or neither. note:
Bingel [31]

Question:

a. Diffusion

b. Facilitated diffusion

c. Both

d. Neither

1. movement to area of lower concentration

2. movement across a membrane

3. steroid transport into cell

4. requires energy

5. movement assisted by proteins

6. glucose transport into cell

   

Answer:

The sorting is as follows

a. (1)

b. (5 and 6)

c. (1 and 2)

d. (4)

Explanation:

Diffusion is the movement of particles across a membrane from a high concentration region to one with a lower concentration of the diffusing substance

Here we have the correct sorting as follows

a. Diffusion

3. steroid transport into cell

b. Facilitated diffusion

5. movement assisted by proteins

6. glucose transport into cell

c. Both

1. movement to area of lower concentration

2. movement across a membrane

d. Neither

4. requires energy

8 0
3 years ago
The temperature at which a substance in the liquid phase transforms to the gaseous phase refers to the substance's _______. A. s
murzikaleks [220]
When a substance goes from being a liquid to a gas it evaporates, or boils away. Think of boiled eggs.
3 0
3 years ago
Read 2 more answers
Chemistry help please! I just need to make sure the answers correct.... Thank you!
Veronika [31]
1. At constant tempaerature and pressure, 3 tablets produce 600cm^3 of gas
Thus calculating for 1 tablet that produces 600 / 3 = 200 cm^3
So now two tablets produce 200 x 2 = 400 cm^3
2. We have the equation PV = nRT, n being the number of moles
Pressure P = 1,000 kPa
Volume V = 3 L
R = 8.31 L kPa/mol-K
Temperature T = 298 K
n = PV / RT = (1000 x 3) / (8.31 x 298) = 3000 / 2476.38 = 1.21 moles
Number of moles = 1.21 moles.
8 0
3 years ago
PLS HELP NEED EMERGENCY HELP ​
Alinara [238K]

Answer:

Explanation:

innermost part of the atom is: orange dots

outermost part of atom is:black dots

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number of neutrons = mass number - atomic number.

3 0
3 years ago
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