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TEA [102]
3 years ago
7

HELP ASAP. GIVING BRAINLIEST

Chemistry
2 answers:
Gennadij [26K]3 years ago
8 0

Answer:

1) Pecan tree 1 and Pecan tree 4

2) I don't know

Explanation:

Nataly [62]3 years ago
6 0

Answer:

Explanation:

Uh made more rich and buttery?

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If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 1530 mmHg, what is the volume of the gas?
Maru [420]

Answer: The volume of the gas is 0.84 Liters

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 1530 mm Hg = 2.01 atm     (760mmHg=1atm)

V = Volume of gas = ?

n = number of moles = 0.275

R = gas constant =0.0821Latm/Kmol

T =temperature =75K

V=\frac{nRT}{P}

V=\frac{0.275atm\times 0.0820 Latm/K mol\times 75K}{2.01atm}=0.84L

Thus the volume of the gas is 0.84 Liters

6 0
3 years ago
Which is a form of kinetic energy?
hodyreva [135]
The answer is c) Electrical energy
4 0
3 years ago
Balance the following equation:<br> B203(s) + HF(l) =&gt; BF3(g) + H20(l)
Kazeer [188]

20 B203(s) + 12180 HF(l) = 4060 BF3(g) + 609 H20(l)

7 0
3 years ago
What measurements must you make to find the density of a sample of matter
Xelga [282]
You would have to look for the mass of the sample and the volume of the sample.
5 0
4 years ago
Calculate the density of the four solutions. All of the solutions has the volume equal to 25 ml. Red solution has 25.0 g of mass
Scilla [17]

Answer:

              B. Green solution density is 1.06 g/ml and blue solution density is 1.20 g/ml

Explanation:

Density is given as,

                               D = Mass / Volume

Red Solution,

                               D = 25 g / 25 mL

                               D = 1 g/mL

Green Solution,

                               D = 26.5 g / 25 mL

                               D = 1.06 g/mL

Yellow Solution,

                               D = 28.2 g / 25 mL

                               D = 1.128 g/mL

Blue Solution,

                               D = 30 g / 25 mL

                               D = 1.20 g/mL

3 0
3 years ago
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