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WITCHER [35]
3 years ago
9

Claudia and her team of scientists develop a new car battery that recharges electric cars at a fast rate.

Chemistry
1 answer:
Doss [256]3 years ago
7 0

Answer: Waste Operators will handle less hazardous material.

Explanation: Since the electric car is electric it produces hazardous material and now that it doesn't it wont.

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Name the type of chemical reaction that occurs when magnesium chloride solution reacts with sodium carbonate solution
Svetlanka [38]

Answer:

precipitation reaction

8 0
3 years ago
Read 2 more answers
The Goodyear blimp contains 5.7 x 10^6 L of helium at 25 degrees Celsius and 1 atm. What is the mass in grams of the helium insi
anygoal [31]

Answer:

1.72x10⁻⁵ g

Explanation:

To solve this problem we use the PV=nRT equation, where:

  • P = 1 atm
  • V = 5.7x10⁶ L
  • n = ?
  • R = 0.082 atm·L·mol⁻¹·K⁻¹
  • T = 25 °C ⇒ (25+273.16) = 298.16 K

And we <u>solve for n</u>:

  • 1 atm * 5.7x10⁶ L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K
  • n = 4.29x10⁻⁶ mol

Finally we <u>convert moles of helium to grams</u>, using its <em>molar mass</em>:

  • 4.29x10⁻⁶ mol * 4 g/mol = 1.72x10⁻⁵ g

8 0
3 years ago
SOMEONE PLEASE HELP! WILL GIVE BRAINLIEST!
Elis [28]

Answer:

1 At 0C° KNO3 is least soluble

2 Approximately 65 grams

3 About 30 grams

4 yes it increases at the same rate can be explained by straight line graph

Explanation:

3 0
2 years ago
Which element has 4 energy levels and 7 valence electrons
antoniya [11.8K]

Answer:

Beryllium 4 2

Boron 5 3

Carbon 6 4

Nitrogen 7 5

5 0
3 years ago
There are 3 different possible isomers of a dibromoethene molecule. what are these isomers?
olasank [31]

Answer:

1,1-, (Z)-1,2-, and (E)-1,2-dibromoethene

Explanation:

Their structures are shown below.

The 1,2-dibromoethenes (2 and 3) are positional isomers

of 1,1-dibromoethene (1).

(Z)-1,2-dibromoethene (2) and (E)-1,2-dibromoethene (3) are stereoisomers (geometric isomers) of each other.

6 0
3 years ago
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