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trapecia [35]
2 years ago
15

I will give brainlyst for this so pls help

Chemistry
2 answers:
KengaRu [80]2 years ago
4 0

Answer:

D

Explanation:

MB is millibars mb is pressure if right pls brainliest

Rom4ik [11]2 years ago
4 0
The answer is D why you may ask because I took the test my self pls brainliest
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Which best explains how heat plays a role in the movement of materials within Earth's interior?
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Answer:

Hot material near the core is less dense and rises, when it cools, it becomes more dense and sinks.

Explanation:

This best explains how heat plays a role in the movement of materials within Earth's interior because it's how convection works. Convection is the circular motion that happens when warmer air or liquid which has faster moving molecules, making it less dense rises, while the cooler air or liquid drops down. Convection currents within the earth move layers of magma, and convection in the ocean creates currents.

3 0
3 years ago
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A 52.0 mL portion of a 1.20 M solution is diluted to a total volume of 278 mL. A 139 mL portion of that solution is diluted by a
RoseWind [281]

Answer:

C_3=0.125M

Explanation:

Hello!

In this case, we can divide the problem in two steps:

1. Dilution to 278 mL: here, the initial concentration and volume are 1.20 M and 52.0 mL respectively, and a final volume of 278 mL, it means that the moles remain the same so we can write:

V_1C_1=V_2C_2

So we solve for C2:

C_2=\frac{C_1V_1}{V_2}=\frac{52.0mL*1.20M}{278mL}\\\\C_2=0.224M

2. Now, since 111 mL of water is added, we compute the final volume, V3:

V_3=139+111=250mL

So, the final concentration of the 139 mL portion is:

C_3=\frac{139 mL*0.224M}{250mL}\\\\C_3=0.125M

Best regards!

8 0
3 years ago
In which of the following are the symbol and name for the ion given correctly?
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The answer you want is a
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At what temperature does uranium hexafluoride have a density of 0.9560 g/L at 0.5073 atm?
S_A_V [24]
Given:



Density = 0.7360 g/L.

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Step 2
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Chemistry homework question answer, step 2, image 1
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Here, R is the universal gas constant (0.0821 L-atm/mol K), T is the temperature in Kelvin, and n is the number of
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3 years ago
A jogger with a mass of 60 kg is moving at 2 m/s. What is the jogger's kinetic energy?
ziro4ka [17]

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