All categories

1 year ago

12 Which is an example of a pulley? A.shoes B.fork C.stairs D. a stapler

Chemistry

1 answer:

k0ka [10]1 year ago

3 0

The correct answer is c, stairs. because it makes the most sense, correct me if i’m wrong though please :)

You might be interested in

Consider the reaction: A(aq) + 2B (aq) === C (aq). Initially 1.00 mol A and 1.80 mol B

liraira [26]

Answer:

Explanation:

Step 1: Calculate the needed concentrations

[A]i = 1.00 mol/5.00 L = 0.200 M

[B]i = 1.80 mol/5.00 L = 0.360 M

[B]e = 1.00 mol/5.00 L = 0.200 M

Step 2: Make an ICE chart

A(aq) + 2 B(aq) ⇄ C(aq)

I 0.200 0.360 0

C -x -2x +x

E 0.200-x 0.360-2x x

Then,

[B]e = 0.360-2x = 0.200

x = 0.0800

The concentrations at equilibrium are:

[A]e = 0.200-0.0800 = 0.120 M

[B]e = 0.200 M

[C]e = 0.0800 M

Step 3: Calculate the concentration equilibrium constant (K)

K = [C] / [A] × [B]²

K = 0.0800 / 0.120 × 0.200² = 16.6 ≈ 17

6 0

2 years ago

Write the general electron configuration of a transition element(b) in Period 6.

aksik [14]

The general electronic configuration of transition element is (n−1)d1−10ns1−2.

<h3>What are the transition element in period 6?</h3>

The period 6 transition metals are;

Lanthanum (La), Hafnium (Hf), Tantalum (Ta), Tungsten (W),

Rhenium (Re), Osmium (Os), Iridium (Ir), pPatinum (Pt),

Gold (Au), and Mercury (Hg).

As a rule, period 6 elements fill their 6s shells first, then their 4f, 5d, and 6p shells, in that order.

However, there are exceptions, such as gold.

To learn more about transition element, refer

https://brainly.in/question/27629573

#SPJ4

6 0

1 year ago

What can you infer about particle's size?

gayaneshka [121]

Answer:

particle size analysis, particle size measurement, or simply particle sizing is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.

Explanation:

8 0

2 years ago

Look at the reaction below and state which direction the reaction would shift: A closed container of water and its vapor at equi

Burka [1]

Answer:

According to Le Chatelier's principle, adding additional reactant to a system will shift the equilibrium to the right, towards the side of the products. ... If we add additional product to a system, the equilibrium will shift to the left, in order to produce more reactants.

6 0

2 years ago

How many years old are you if you have lived 1 billion seconds 31 years round this answer to 3 sig figs

stich3 [128]

Answer:

age = 63.2 years

Explanation:

Given data

Number of years = 31

number of seconds = 1 billion

Age = ?

Solution

First we convert seconds to minutes

minutes = 1000000000 / 60

minutes = 16666666.667

Now convert minutes to hours

hours = 16666666.667 / 60

hours = 277777.778

Now convert hours to days

days = 277777.778 / 24

days = 11574.074

Now convert days to months

months = 11574.074 / 30

months = 385.802

Now convert months to years

years = 385.803 / 12

years = 32.15

Now add these years with given years

age = 31 + 32.15

age = 63.2 years

5 0

3 years ago

12 Which is an example of a pulley? A.shoes B.fork C.stairs D. a stapler​

12 Which is an example of a pulley? A.shoes B.fork C.stairs D. a stapler