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ss7ja [257]
3 years ago
12

A student has two objects. Object 1 has a mass of 28 g and a volume of 12 cubic

Chemistry
1 answer:
bearhunter [10]3 years ago
8 0

Answer:

Object 2 with a density of 0.68

Explanation:

object 2 has a lower density than water so it will float

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Beryllium forms a compound with chlorine that has the empirical formula becl2. the compound does not dissolve in water. how woul
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To determine if the compound is an ionic compound, heat it up until the compound reaches its melting point and become molten. Use the molten form to set up an electric circuit and see if the compound will conduct electricity. If the compound conduct electricity then it is an ionic compound. If it does not conduct electricity, it is not an ionic compound. Ionic compounds usually conduct electricity in their molten forms.<span />
3 0
4 years ago
A gas occupies a volume of 410 mL at 27°C and 740 mm Hg pressure. Calculate the volume the gas
murzikaleks [220]

Answer:

The volume of gas is 58.22 L which will occupy at 250.°C and 680 mm Hg pressure.

Explanation:

Given:

Temperature = 27°C

To make it into kelvin   = 27+273

 = 300K

Pressure  =740mm Hg

to make it in atm.  = \frac{740}{760}

= 0.973atm

n   = 2.3 moles

Volume of gas =?

 As we know according to the formula

 PV   = nRT

V= \frac{nRT}{P}

On substituting the values

 = \frac{2.3\times0.0827\times300}{0.973}

= 58.22 L

Therefore, 58.22L volume of gas will occupy at 250.°C and 680 mm Hg pressure.

8 0
3 years ago
A chemist titrates 50.0 mL of a 0.1333 M benzoic acid (HCH,CO2) solution with 0.2560M NaOH solution at 25 °C. Calculate the pH a
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3 0
3 years ago
The volume of a gas is 605 liters at 27.0°C. The new temperature is -3.0°C. What is the new volume? (Remember to convert tempera
Daniel [21]

Answer: The new volume is 544 L

Explanation:

To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=605L\\T_1=27.0^oC=(27.0+273)K=300K\\V_2=?\\T_2=-3.0^0C=(273+(-3.0))K=270K

Putting values in above equation, we get:

\frac{605}{300}=\frac{V_2}{270}\\\\V_2=544L

Thus the new volume is 544 L

8 0
4 years ago
What type of heat transfer warms our oceans and atmosphere
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The answer is Conduction. I hope this helps!
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