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Virty [35]
3 years ago
10

What is mechanical advantage?

Chemistry
1 answer:
egoroff_w [7]3 years ago
3 0

Answer:

i think its letter d

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1. Determine the acid type for HBr.<br> O Brønsted-Lowry<br> O Ahrrenius<br> O Lewis<br> not a base
Licemer1 [7]

Answer:idk

Explanation:

7 0
3 years ago
Croquet balls must have a mass of 0.50 kg. A red croquet ball, moving at 10
julsineya [31]

The final speed of the  green ball : 8.5 m/s

<h3>Further explanation</h3>

Given

mass of Croquet ball = 0.5 kg

v₁= 10 m/s

v₁'= 1.5 m/s

Required

the final speed

Solution

The law of conservation of momentum

m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)

v₂=0 (at rest)

Input the value :

\tt 0.5\times 10+0.5\times 0=0.5\times 1.5+0.5\times v_2'\\\\5=0.75+0.5v_2\\\\4.25=0.5v_2\rightarrow v_2=8.5~m/s

8 0
3 years ago
Read 2 more answers
2. If you are given the mass of a reactant in grams and want to calculate the mass of
Darina [25.2K]

Answer:

1. Convert given mass of reactant to moles.

2. Convert moles of reactant to moles of product using the coefficients in the balanced equation.

3. Convert moles of product back to grams of product

Explanation:

In order to find out the mass of a given product in grams you would have to convert the grams into moles by multiplying 1 mole over the given mass of the reactant. Then, you would convert the moles of the reactant into moles of the product using mole ratio. And lastly, you would multiply by the mass of the product to calculate the mass back to grams.

Hope this helps!!<3

6 0
3 years ago
Which of the following should have the largest Henry's law constant (kH) in water?
Ostrovityanka [42]

Answer: Option (B) is the correct answer.

Explanation:

It is known that Henry's law is a relation between the concentration of a gas in a liquid (solubility) and the pressure it exerts on the surface of the liquid.

According to Henry's law, the pressure of a gas is directly proportional to the solubility of the gas in a liquid.

Henry's constant is represented by the symbol K_{H}. And, mathematically it is represented as follows.

                      P = K_{H}C  

where,      P = pressure and C = solubility

As the pressure for the given species is the same. Hence, the standard values of solubility of the given species is as follows.

               Gas           Solubility

                Ar          3.025 \times 10^{-5}

               CO         2.095 \times 10^{-5}

               Xe         10.519 \times 10^{-5}

            CH_{3}CH_{3}   4.556 \times 10^{-5}

              CO_{2}   8.21 \times 10^{-4}

As, Henry's constant is inversely proportional to the solubility. Hence, more is the value of solubility lesser will be the value of Henry's constant.

Thus, we can conclude that out of the given options CO have the largest Henry's law constant (K_{H}) in water.

6 0
3 years ago
A gas has a volume of 6.6 L at a temperature of 40 C. What is the volume of
zaharov [31]

Answer:

6.07 L

Explanation:

It appears that the reading has been made at constant pressure .

At constant pressure , the gas law formula is

V/T = constant  V is volume and T is temperature of the gas.

V₁ / T₁ = V₂ / T₂

V₁ = 6.6 L ,

T₁ = 40°C

= 273 + 40

= 313 K

T₂ = 15+ 273

= 288K

V₂ = ?

Putting the values in the formula above

6.6 / 313  = V₂ / 288

V₂ = 6.07 L.

8 0
4 years ago
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