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worty [1.4K]
3 years ago
9

If you can walk 2.1 miles in 35 minutes, how many days will take you to con

Chemistry
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

HINT: calculate how much distance you walk in one minute(35 divided by 2.1), then multiply that by 60 to find how far you'll walk in an hour.

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How are a flashlight and lightening similar and how are they different?
grandymaker [24]
<span>A flashlight is an electric-powered light source; the light source is a light bulb or an LED. The electrical energy is converted into visible light. Flashlights can be hand-held or mounted to a platform. Light from a lighting, on the other hand, is formed by exciting electrons to a higher state. </span>
5 0
4 years ago
A chemist prepares a solution by adding 258 mg of K2Cr2O7 (MW = 294.19 g/mol ) to a volumetric flask, and then adding water unti
Maksim231197 [3]

Answer: Molarity of the prepared solution is 1.75\times 10^{-3}mole/L

Explanation:

Molarity is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

V_s = volume of solution in ml = 500 ml

moles of solute =\frac{\text {given mass}}{\text {molar mass}}=\frac{0.258g}{294.19g/mol}=8.77\times 10^{-4}mol

Now put all the given values in the formula of molarity, we get

Molarity=\frac{8.77\times 10^{-4}moles\times 1000}{500ml}=1.75\times 10^{-3}mole/L

Thus molarity of the prepared solution is 1.75\times 10^{-3}mole/L

3 0
3 years ago
Whitch unit is not a measurement of volume
joja [24]

Answer:

I cant really explain what you cant use but you use cubic centimeters, cubic meters, or liters.

Explanation:

Remember the volume is how much space something takes up, and the only way to identify the volume is by using something you can convert into something else, like centimeters into cubic meters (100 cm³ is equal to 1 m³), and liters (same thing, but in liquid form.)

8 0
3 years ago
Would it be C???...idk<br> HELP
givi [52]

Answer:

C.  Butanal , is the aldehyde

Explanation:

A . It is carboxylic acid : ---COOH group

B. It is Ester : ----COOR group , Here R = CH3

C. It is Aldehyde : -----CHO group

D. It is ketone : ----C=O group

See image :

8 0
3 years ago
Describe bonding in water molecules using the VBT. Show the overlap of hybridised orbitals leading to the formation of H2O molec
Bogdan [553]
Yes I’m going to go ask my mama, she said the answer is 1993629
3 0
3 years ago
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