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AnnyKZ [126]
2 years ago
15

Which of these statements best describes an Alkali? *

Chemistry
1 answer:
lana66690 [7]2 years ago
5 0
Proton donor. Alkali metals have one electron that they want to give up to fulfill the octet rule (makes them stable)
You might be interested in
Help ASAP If you know what to do comment if u don’t I’ll report you ! Points added
mylen [45]

Proton:

Positive

Found in Nucleus

Mass of 1 AMU

Neutron:

Neutral

Found in Nucleus

Mass of 1 AMU

 

Electron:

Negative

Found in orbitals

Mass of 0 AMU

5 0
2 years ago
Glycerol is a subunit molecule of a
Schach [20]
<span>Glycerol is a sub-unit molecule of a Lipid

So, option C is your answer.

Hope this helps!
</span>
6 0
2 years ago
Zn +
saul85 [17]

Answer:

1. Theoretical yield = 2.03g

2. Actual yield 1.89g

Explanation:

Let us write a balanced equation. This is illustrated below:

Zn + 2HCI —> ZnCl2 + H2

Molar Mass of HCl = 1 +35.5 = 36.5g/mol

Mass of HCl from the balanced equation = 2 x 36.5 = 73g

Molar Mass of H2 = 2x1 = 2g/mol

1. From the equation,

73g of HCl produced 2g of H2.

Therefore, 74g of HCl will produce = (74 x 2)/73 = 2.03g

Therefore, theoretical yield = 2.03g

2. %yield = 93%

Theoretical yield = 2.03g

Actual yield =?

%yield = Actual yield /Theoretical yield x100

Actual yield = %yield x theoretical yield

Actual yield = 93% x 2.03 = (93/100)x2.03 = 1.89g

Actual yield =1.89g

4 0
3 years ago
If the mass of the object below is 28g, what is the density of the object below. Units are in cm below. Please round your answer
Murljashka [212]

Answer:

d = 0.93 g/cm³

Explanation:

Given data:

Mass of object = 28 g

Volume of object = 3cm×2cm×5cm

density of object = ?

Solution:

Volume of object = 3cm × 2cm ×5cm

Volume of object = 30 cm³

Density of object:

d = m/v

by putting values,

d = 28 g/ 30 cm³

d = 0.93 g/cm³

3 0
3 years ago
The study of the interaction between animals and plants within a specific environment is called
sergij07 [2.7K]

Answer:

The study is called ecology

Explanation:

Mark as brainliest if I'm correct

8 0
3 years ago
Read 2 more answers
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