This is a 2 part question. for #1, my answer is B. but I need help with question 2.

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Q: Help me find the % deviation : #1: 7.77 #2 : 7.78 #3: 7.74 i know the average is 7.76…

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Q: I need question 2

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A: We will. Calculate concentration of OH-

Q: Round to 3 sig figs Round to 2 sig figs Round to 1 sig figs 577900 mi 0.0784400 cm 456.5 km

A: Fill in the blanks of the given--

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A: Given,

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Q: NUMBER 2 AND 3 ONLY

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Q: He+ Al → n+ 2 13 01:23:26 Multiple Choice 16 31 14 to 15 3 14 30 15 Next> 20 of 35

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A: 1 yard = 3ft.1ft = 12inch. 1inch= 2.54cm.1 m= 100cm.

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A: Mass of water=2.11 g Volume of water=2.0 mL Density = Mass / Volume  Density =2.11 g/2.0 mL Density…

Q: Part A pH = 8.77 Express your answer using two significant figures. Enter your answers numerically…

A: Part A  pH = 8.77  pH = -log[H3O+]  Log[H3O+] = -pH  [H3O+] = antilog(-pH) = antilog(-8.77)  [H3O+]…

Q: I need help with only figure 1 and the question

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Q: QUESTION 20 A laboratory experiment was done at 160.0°F. Convert this temperature to K using the…

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Q: Hello,can you help me with number 1, 2 ,3, 4 ,5, 6 and 7 please?

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

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Q: How do I calculate difference Ha? First page is my data. Part A is for the question

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Q: know there is only a limit to how many questions you can help me on and I don't know if each blank…

A: The solution is as follows:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.