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Tpy6a [65]
3 years ago
9

2) The fill-in statement, "In describing molecular compounds, the empirical

Chemistry
1 answer:
sweet [91]3 years ago
7 0
I’m sure it’s c, I’m just trying to answer my first question, I’m pretty good at science, buh I’m yet to learn this
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Dilute solutions of NaHCO3 are sometimes used in treating acid burns.
Temka [501]

Answer:

We need 375 milliliters of 0.100 M NaHCO3 solution

Explanation:

Step 1: Data given

Initial molarity NaHCO3 = 0.100 M

Volume prepared solution = 750.0 mL

Molarity prepared solution = 0.05 M

Step 2: Calculate initial volume

C1*V1 = C2V2

⇒with C1 = the initial concentration = 0.100 M

⇒with V1 = The initial volume = TO BE DETERMINED

⇒with C2 = the new concentration = 0.0500M

⇒with v2 = the new volume = 750.0 mL = 0.750 L

0.100 M * V1 = 0.0500 M * 0.750 L

V1 = (0.0500M * 0.750L)/0.100 M

V1 = 0.375 L = 375 mL

We need 375 milliliters of 0.100 M NaHCO3 solution

8 0
3 years ago
The tungsten- nuclide radioactively decays by alpha emission. Write a balanced nuclear chemical equation that describes this pro
Scrat [10]

Answer:

The solution to this question can be defined as follows:

Explanation:

The complete question is defined in the attached file.

W^{180}_{74} \to He^{4}_{2} + Hf^{176}_{72}

Here:

W= Tungsten-180\\\\Hf =Hafnium\\\\He = \alpha \ particle\\\\

5 0
3 years ago
Shauna is making breakfast for her family. During which step of preparing breakfast did Shauna observe a chemical change?
AleksAgata [21]

Answer:

when she squeezed oranges and the juice came out

Explanation:

8 0
3 years ago
Which term below represents a pure substance that can be separated chemically but cannot be separated physically that is made up
Nastasia [14]

C.molecules- made up of more than one atom and can only be broken by chemical means

8 0
3 years ago
How does carbon dioxide affect the Earth's climate?
N76 [4]

Answer:

While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

5 0
3 years ago
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