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AfilCa [17]
2 years ago
10

(20 POINTS) I NEED IT TODAY!

Chemistry
1 answer:
Dafna11 [192]2 years ago
5 0
Please stop scamming people it clearly says it’s ten points
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A compound has a molar mass of 90. grams per mole and the empirical formula CH2O. What is the molecular formula of this compound
Elanso [62]
The molecular formula of this compound is C3H603 XD
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3 years ago
Which Bond is the Least Polar? <br><br> a) H-O <br> b) H-F<br> c) H-I<br> d) H-H
Elden [556K]
I'm not sure on this I'm sorry I can't help you I wish I could!
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3 years ago
The weight of the buggy was 40N on Mars. When the buggy landed on Mars it rested on an area of 0.025 m2. Calculate the pressure
elena-s [515]

Answer:

The pressure exerted by the buggy on the surface of Mars is 1600 pascals.

Explanation:

The pressure is determined by the definition of stress, which is the force exerted by the buggy on the martian surface divided by the contact area of the latter:

\sigma = \frac{F}{A}

Where:

\sigma - Stress, measured in pascals.

F - Force, measured in newtons.

A - Area, measured in square meters.

The force is the weight of the buggy (40 N) and A = 0.025\,m^{2}, the stress is now calculated:

\sigma = \frac{40\,N}{0.025\,m^{2}}

\sigma = 1600\,Pa

The pressure exerted by the buggy on the surface of Mars is 1600 pascals.

4 0
3 years ago
Do you think lava or water formed the Chanel on Mars? And why? I’ll give brainliest
Kamila [148]

Answer:

A channel in an ancient Martian "river bed" was not carved out by liquid water but built by molten lava

6 0
2 years ago
Equation for the reaction of rubidium with an Arrhenius base
Alex_Xolod [135]

Answer:

No reaction.

Explanation:

An Arrhenius base (like NaOH) increases the concentration of hydroxide ions present in the solution.

If you add Rb to an aqueous solution of NaOH, you will get an explosion.

However, the Rb does not react with the OH^-. Instead, it reacts rapidly with the water.

2Rb + 2H2O → 2RbOH + H2

So much heat is generated that the hydrogen explodes:

2H2 + O2 → 2H2O

5 0
3 years ago
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