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4 years ago

Is filling up beakers with 200ml of water bad

Chemistry

1 answer:

iogann1982 [59]4 years ago

6 0

Answer:

Explanation:

Filling a beaker 200ml of water is not bad because Each beaker's capacity may vary according to the size of different beaker.

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Complete the unit conversion by entering the correct numbers A= B= C=

Alexus [3.1K]

Answer: A=1, B=3, C=12

Explanation:

For this problem, you will need to know your unit conversions. There are 3 ft in 1 yard. Knowing this, we can find A, B, C.

For A and B, we know that we want to cancel out ft so the answer can be in yards. To do so, we need to put B=3 and A=1.

Now that we know the unit conversion, we can directly solve.

36 ft×(1 yd/3 ft)=12 yd

Our final answer is A=1, B=3, C=12.

5 0

3 years ago

Write the chemical formula for Potassium Nitride

quester [9]

Answer:

KNO lower case 2

Explanation:

8 0

3 years ago

Read 2 more answers

3) How many moles are in 22 grams of argon?

professor190 [17]

Answer:

4) 0.5507 Mol Ar

5) 44.548 Mol AgNO3

6) 2.16107 Mol Li

Explanation:

Divide = grams to mol and mol to molecules

Multiply = molecules to mol and mol to grams.

3) 22 g of Ar 1 mol 22

-------------------- * ---------------------- = ------------ (turn to decimal) = 0.5507 Mol Ar

39.948 g of Ar 39.948

4) AgNO3 = (Ag; 39.948) (N; 14.007) (O^3; 48)

39.948 + 14.007 + 48 = 101.955

7.4 x 10^23 Mc 6.02 x 10^23 Mc

---------------------- * ------------------------- = 44.548 Mol AgNO3

1 mol

15g 1 Mol 15

------- * ------------------- = --------- (turn to decimal) = 2.16107 Mol Li

6.941 g of Li 6.941

7 0

2 years ago

Calculate the work done when a force of 4 N pulls a box along the floor for a distance of 0.3 m.

Yuki888 [10]

Answer:

<h2>1.2 Joule</h2>

solution,

Force=4 N

Distance=0.3 m

Now,

 $work = f \times d \\ \: \: \: \: \: \: \: \: \: \: \: = 4 \times 0.3 \\ \: \: \: \: \: \: \: \: \: \: \: = 1.2 \: joule$ 

hope this helps...

Good luck on your assignment....

8 0

4 years ago

Zinc is used as a coating for steel to protect the steel from environmental corrosion. If a piece of steel is submerged in an el

sweet [91]

Answer:

A) 3.17 g of Zn

Explanation:

Let's consider the reduction of Zn(II) that occurs in an electrolysis bath.

Zn⁺²(aq) + 2e⁻ → Zn(s)

We can establish the following relations:

1 min = 60 s
1 A = 1 C/s
The charge of 1 mole of electrons is 96,468 C (Faraday's constant).
When 2 moles of electrons circulate, 1 mole of Zn is deposited.
The molar mass of Zn is 65.38 g/mol

The mass of Zn deposited under these conditions is:

$24min \times \frac{60s}{1min} \times \frac{6.5C}{s} \times \frac{1mol\ e^{-} }{96,468C} \times \frac{1molZn}{2mol\ e^{-}} \times \frac{65.38g}{1molZn} = 3.17 g$

3 0

3 years ago