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pochemuha
3 years ago
9

10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.​

Chemistry
1 answer:
trapecia [35]3 years ago
3 0

Answer:

Yes indeed

Explanation:

You might be interested in
A 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evole
vaieri [72.5K]

Answer:

400 mL

Explanation:

Given data:

Mass of barium = 2.17 g

Pressure = 748 mmHg (748/760 = 0.98 atm)

Temperature = 21 °C ( 273+ 21 = 294k)

Milliliters of H₂ evolved = ?

Solution:

chemical equation:

Ba + 2H₂O →  Ba(OH)₂ + H₂

Number of moles of barium:

Number of moles = mass/ molar mass

Number of moles = 2.17 g / 137.327 g/mol

Number of moles = 0.016 mol

Now we  will compare the moles of barium with H₂.

                       Ba        :       H₂

                         1         :         1

                  0.016        :     0.016

Milliliters of H₂:

PV = nRT

V = nRT/P

V = 0.016 mol ×  0.0821 atm. mol⁻¹.k⁻¹.L×294 k/0.98 atm

V = 0.39 atm. L/0.98 atm

V = 0.4 L

L to mL

0.4 × 1000 = 400 mL

8 0
3 years ago
6CO2 + 6 H2O —> C6H12O6 + 6O2
PilotLPTM [1.2K]

Answer:

The answer to your question is 0.5 moles

Explanation:

Data

moles of Glucose = ?

moles of carbon dioxide = 3

Balanced chemical reaction

                6CO₂  +  6H₂O   ⇒   C₆H₁₂O₆  +  6O₂

Process

To solve this problem, use proportions, and cross multiplication.

Use the coefficients of the balanced equation.

                6 moles of CO₂ ----------------- 1 mol of C₆H₁₂O₆

                3 moles of CO₂ ----------------    x

                    x = (3 x 1) / 6

-Simplification

                    x = 3/6

-Result

                   x = 0.5 moles of Glucose

3 0
2 years ago
Taryn has a 90-gram sample of ethanol, which has a specific heat of
Angelina_Jolie [31]
35 Celsius minus the average 20 Celsius.  going to be  15. let me know if u need anything else.
7 0
2 years ago
Examples s name of thosse food items we can store for a month?​
choli [55]

Answer:

1. Nuts

2. Canned meats and seafood

3. Dried grains

4. Dark chocolate

5. Protein powders

3 0
2 years ago
If you took a cross-section of soil from your backyard, what would be the correct order of soil layers from top to bottom? paren
AlladinOne [14]

humus, topsoil, subsoil, parent rock

3 0
2 years ago
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