Answer:
<em>Q1) How many molecules are present in the following quantities?</em>
a) 1.5055 x 10²³ molecules.
b) 2.7099 x 10²¹ molecules.
<em></em>
<em>Q2) How many moles are present in the following quantities?</em>
a) 1.66 x 10⁻⁴ mol.
b) 1.66 x 10⁻¹⁵ mol.
<em></em>
<em>Q3) What is the molar mass of each of the following substances?</em>
a) 18.0 g/mol.
b) 40.0 g/mol.
c) 53.45 g/mol.
d) 98.0 g/mol.
e) 234 g/mol.
f) 239.2 g/mol.
<em></em>
<em>Q4) Convert the following to moles.</em>
a) 1.5 mol.
b) 0.058 mol.
c) 0.051 mol.
d) 0.042 mol.
<em></em>
<em>Q5) Convert the following to grams.</em>
a) 4.40 g.
b) 48.045 g.
c) 17.48 g.
d) 54.0 g.
<em>Q6) How many molecules are present in the following masses?</em>
a) 5.68 x 10²1 molecules.
b) 3.345 x 10²5 molecules.
<em>Q7) Convert the following to grams.</em>
a) 0.664 g.
b) 169.83 g.
c) 5.712 g.
<em>Explanation:</em>
<em></em>
As the answer is very long and it can not be paste here.
Kindly find the answer in details for all questions with step by step explanation in the attached pdf and word files.
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark">
pdf
</span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark">
docx
</span>
Answer:
box a is warmer than box b, so the molecules are moving around a lot more
D - density: 0.5 g/mL
m - mass: 500g
V - volume: ???
________
d = m/V
V = m/d
V = 500/0,5
V = 1000 mL = 1 L
:)
Answer:
your brain and you hand
Explanation:
because your hand tells you what to do with that hand
A galvanic cell is formed when two metals are immersed in solutions differing in concentration, when two different metals are immersed.
<h3><u>What is a </u><u>
Galvanic</u><u> </u><u>
cell</u><u> ?</u></h3>
- In order to provide a pathway for the flow of electrons along that wire, the galvanic cell makes use of the ability to split the flow of electrons during the oxidation and reduction processes.
- It forces a half-reaction and connects each to the other with a wire.
- A galvanic cell is an electrochemical device that converts chemical redox reaction energy into electrical energy.
- Electrically, it has a potential of 1.1 V. Oxidation takes place at the anode, which is a negative plate in galvanic cells. It is a positive plate where the reduction happens.
- An electrochemical device called a galvanic cell transforms chemical energy's free energy into electrical energy. A photogalvanic cell produces species that are photochemically reactive.
To view more questions about galvanic cell, refer to:
brainly.com/question/13031093
#SPJ4
