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Vesnalui [34]
4 years ago
11

What is the most appropriate tool to use when collecting data from the investigation

Chemistry
1 answer:
IrinaK [193]4 years ago
7 0
If it is just a reseach investigatory project, you could monitor it by using different variables (controlled), acurate measuring devices and camera for documentations

Cameron12
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By what name is acetylsalicylic acid more commonly known?
vekshin1

Acetylsalicylic acid is more commonly known as Aspirin.

7 0
3 years ago
Okay, okay. Serious time. What is the difference between electric and mechanical energy? Name 2 examples for each, and give one
Sindrei [870]

Answer:

Kinetic Energy can be defined as the energy possessed by the object by the virtue of its motion. The sum of these two energies is often called Mechanical Energy of the System. ... Electric Energy is also a form of these 2 energies: Electric potential energy stored in a charged particle in an electric field.

Explanation:

sorry if im wrong T-T

3 0
3 years ago
Astatine -211 has half a life of seven hours. If u start with 50.0 grams of astatine-211, how much will remain after 28 hours
xeze [42]

Answer:

3.125 grams

Explanation:

Applying,

R = (2^{t/n})R'............... Equation 1

Where R = Original mass of Astatine-211, R' = mass of Astatine-211 left after decay, t = total disintegeration time, n = halflife of Astatine-211

make R' the subject of the equation

R' = R/(2^{t/n})............ Equation 2

From the question,

Given: R = 50 grams, t = 28 hours, n = 7 hours

Substitute into equation 2

R' = 50/(2^{28/7})

R' = 50/(2⁴)

R' = 50/16

R' = 3.125 grams

4 0
3 years ago
The drinking water standard for nitrate is 10 mg/L as N (i.e., drinking waters should not exceed this value). What quantity of n
Juliette [100K]

Answer:

This concentrations represents 9.71 x 10¹⁹  nitrate ions per litre of drinking water.

Explanation:

Nitrate: NO₃⁻

MW = 62.00 g/mol

1 mol = 6.022 x 10²³

62 g  NO₃⁻ ____________ 6.022 x 10²³ ions

10 x 10⁻³ g NO₃⁻ _________ x

x = 9.71 x 10¹⁹ ions

This concentrations represents 9.71 x 10¹⁹  nitrate ions per litre of drinking water.

8 0
4 years ago
Hello people ~<br>(๑¯◡¯๑)what happens when we add carbon tetrachloride in water?​
harina [27]

Answer:

It will explode, I have plenty of research on this. Let me know if you want the sources. :)

Explanation:

8 0
2 years ago
Read 2 more answers
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