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wel
3 years ago
13

Which civilization formed a confederation thay may have impacted the us government

Chemistry
1 answer:
lana66690 [7]3 years ago
3 0

Answer:

Anasazi

Explanation:

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Francine makes several measurements of the mass of a metal block. The data set is shown in the table below. Measurement Mass of
Lana71 [14]
The characteristic being calculated here is the mean or the average of the data set.
To check:
(20.73 + 20.76 + 20.68 + 20.75)/4 [we divide it by 4 because there are 4 numbers]
= 82.92 / 4
= 20.73
6 0
2 years ago
Read 2 more answers
Why is Newton's first law of motion important to science?
Lyrx [107]

Answer:

Newton's laws are very important because they tie into almost everything we see in everyday life. These laws tell us exactly how things move or sit still, like why you don't float out of bed or fall through the floor of your house.

Explanation: Newton's laws of motion are important because they are the foundation of classical mechanics, one of the main branches of physics. Mechanics is the study of how objects move or do not move when forces act upon them.

6 0
3 years ago
A 0.8115 g sample of HCl was placed into a 50 mL volumetric flask and the sample was thoroughly dissolved in water to make 50 mL
inysia [295]

Answer:

Molarity of NaOH solution is 1.009 M

Explanation:

Molar mass of HCl is 36.46 g/mol

Number moles = (mass)/(molar mass)

So, 0.8115 g of HCl = \frac{0.8115}{36.46}moles HCl = 0.02226 moles HCl

1 mol of NaOH neutralizes 1 mol of HCl.

So, if molarity of NaOH solution is S(M) then moles of NaOH required to reach endpoint is \frac{S\times 22.07}{1000}moles

So, \frac{S\times 22.07}{1000}=0.02226

or, S = 1.009

So, molarity of NaOH solution is 1.009 M

5 0
3 years ago
What acid and base form Ca3(PO4)2
olya-2409 [2.1K]
Base is Ca(OH)2.
Acid is H3PO4.

First part of the salt comes from base, 
second par comes from the acid.
3 0
3 years ago
What evidence supports conservation of matter?
Zinaida [17]

Answer:

i dont knoq

Explanation:

sorry that i couldnt help you

7 0
2 years ago
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