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3 years ago

HELP!!!!!! 20 POINTS

Chemistry

2 answers:

Ludmilka [50]3 years ago

4 0

C. Judge the closeness of your trend line to the data points. Do you notice a relationship between the data points?

butalik [34]3 years ago

3 0

I believe that the answer is C

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Is chemistry required to get into speech language pathology?

liraira [26]

Answer:

As of right now (4-7-2021), the physical science requirement for the SLP certificate must be met by completing coursework in the areas of either chemistry or physics.

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3 years ago

FORENSIC SCIENCE HELP

Annette [7]

That is correct c
Explanation

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2 years ago

You put two open cans of soda on the table. You took one can from the refrigerator and the other from your car. When you open th

sladkih [1.3K]

The correct answer from the choices given is the last option. The can from the car will lose the carbon more quickly because there are fewer solute–solvent collisions. The can in the car has a lower temperature than the one in the refrigerator. At low temperature, the solubility of carbon dioxide in the liquid decrease therefore particles would tend to be in the vapor phase and escape from the liquid.

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3 years ago

Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→C

GREYUIT [131]

Answer:

$m=8.79kg$

Explanation:

First of all we need to calculate the heat that the water in the cooler is able to release:

$Q=\rho * V*Cp*\Delta T$

Where:

Cp is the mass heat capacity of water
V is the volume
$\rho$ is the density

$Q=1 g/cm^3 *15000 cm^3*4.184 \frac{J}{g*^{\circ}C}*(10-90)^{\circ}C$

$Q=-5020800 J=-5020.8 kJ$

To calculate the mass of CO2 that sublimes:

$-Q=\Delta H_{sub}*m$

Knowing that the enthalpy of sublimation for the CO2 is: $\Delta H_{sub}=571 kJ/kg$

$5020.8 kJ=571 kJ/kg*m$

$m=\frac{5020.8 kJ}{571 kJ/kg}=8.79kg$

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2 years ago

Which answer helps to explain why carbon atoms tend to make 4 covalent bonds? which answer helps to explain why carbon atoms ten

Kay [80]

Carbon-12 has the following electron configuration: 1s2-2s2-2p2. As seen in the configuration, the right answer is: the first electron shell has 4 orbitals.

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3 years ago

Read 2 more answers