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Angelina_Jolie [31]
3 years ago
15

Extra points if anyone can help me with those 2

Chemistry
2 answers:
Allisa [31]3 years ago
7 0

Answer:

Blank 1 - Microscope

Blank 2 - Cell Theory

Explanation:

pishuonlain [190]3 years ago
3 0

Answer:

microscope. and cell theory

Explanation:

with the invention of the microscope. scientists were able to create cell theory

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ikadub [295]

Answer: Tall fescue can be harmful to grazing cattle and horses because the grass can become tough and infected with endophytes, causing poor grazing. Switchgrass and tall fescue are less likely to be poisonous to dogs, cats or humans than to horses or cattle, but eating either of them might cause stomach upset.

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3 years ago
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A solution is made by dissolving 0.0150 mol of HF in enough water to make 1.00 L of solution. At 26 °C, the osmotic pressure of
Alex777 [14]
Given:
M = 0.0150 mol/L HF solution
T = 26°C = 299.15 K
π = 0.449 atm

Required:
percent ionization

Solution:
First, we get the van't Hoff factor using this equation:
π = i MRT
0.449 atm = i (0.0150 mol/L) (0.08206 L atm / mol K) (299.15 K)
i = 1.219367

Next, calculate the concentration of the ions and the acid.
We let x = [H+] = [F-]
[HF] = 0.0150 - x

Adding all the concentration and equating to iM
x +x + 0.0150 - x = <span>1.219367 (0.0150)
x = 3.2905 x 10^-3

percent dissociation = (x/M) (100) = (3.2905 x 10-3/0.0150) (100) = 21.94%

Also,
percent dissociation = (i -1) (100) = (</span><span>1.219367 * 1) (100) = 21.94%</span>
7 0
3 years ago
Question 1
Salsk061 [2.6K]

Answer:

Part A:

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Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/2807911-what-changes-could-be-made-to-optimize-the-manufacturing-process.html

4 0
3 years ago
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Dmitry_Shevchenko [17]
1. <span>Count Sergei Lvovich Levitsky invented the Bellows camera. The correct option among all the options that are given in the question is the last option or option "D".

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6 0
3 years ago
Can you help me answer this plz
Zigmanuir [339]

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That did not set well with the Beliefs of the day, and that is at least one answer!

Explanation:

3 0
3 years ago
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