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marysya [2.9K]
3 years ago
13

**Start each example by writing the density equation, then plug in the numbers.**

Chemistry
1 answer:
Katen [24]3 years ago
4 0

Answer: 1. 4000 kg / m^3 2. 250 kg / m^3 3. 0.0005 m^3 / kg 4. 2000 kg / m^3 5. 500 kg / m^3 6.3000 kg / m^3

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Sea water, a solution composed of a variety of salts dissolved in water. the salt is the
luda_lava [24]
In seawater, salt is the solute and water is the solvent.
4 0
3 years ago
If 0.0692 mol CaCl2 is dissolved in water to make a 0.810 M solution, what is the volume of the solution?
Natali5045456 [20]

Answer:

Just ask google for help

Explanation:

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8 0
3 years ago
If 1/4 cups are in 1 serving jow many servings are in 4 cups​
mote1985 [20]

Answer:

One serving is 1/4 cup therefore 1 cup would be 4 servings. Since we have 9 cups we would then multiply 9 x 4 and the answer would be 36 servings. You have a ratio of cups to serving, so 1/4 cup : 1 serving, or .

Explanation:

7 0
3 years ago
2. When heated above 500 ºC, potassium nitrate decomposes according to the equation below. 4KNO3 2K2O + 2N2 + 5O2A.If oxygen is
AysviL [449]

Answer:

(a) The rate of formation of K2O is 0.12 M/s.

The rate of formation of N2 is also 0.12 M/s

(b) The rate of decomposition of KNO3 is 0.24 M/s

Explanation:

(a) From the equation of reaction, the mole ratio of K2O to O2 is 2:5.

Rate of formation of O2 is 0.3 M/s

Therefore, rate of formation of K2O = (2×0.3/5) = 0.12 M/s

Also from the equation of reaction, mole ratio of N2 to O2 is 2:5.

Rate of formation of N2 = (2×0.3/5) = 0.12 M/s

(b) From the equation of reaction, mole ratio of KNO3 to O2 is 4:5.

Therefore, rate of decomposition of KNO3 = (4×0.3/5) = 0.24 M/s

3 0
3 years ago
B.Use the words inside the box to complete the chart below​
Dennis_Churaev [7]

Answer:

Answered below

Explanation:

>> ice is solid

>> water is liquid

>> Steam is gas

>> Ice → water = melting

>> water → steam = evaporation

>> steam → water = condensation

>> water → ice = freezing

7 0
3 years ago
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