All categories

3 years ago

1. Two boys balanced steady in a sea-saw game

Chemistry

2 answers:

bonufazy [111]3 years ago

7 0

Answer: Mutual Equilibrium

anygoal [31]3 years ago

4 0

Mutual

They are balanced steadily which means they’re at the same point

You might be interested in

Ethyl ethanoate undergoes following reaction [on the picture]

vichka [17]

<u>Answer:</u> The concentration of ethyl ethanoate at equilibrium is $0.653mol/dm^3$

<u>Explanation:</u>

Given values:

Equilibrium concentration of ethanol = $0.42mol/dm^3$

Equilibrium concentration of ethanoic acid = $0.42mol/dm^3$

$K_c=0.27$

The given chemical equation follows:

$CH_3COOC_2H_5+H_2O\rightleftharpoons C_2H_5OH+CH_3COOH$

The expression of $K_c$ for above equation follows:

$K_c=\frac{[C_2H_5OH][CH_3COOH]}{[CH_3COOC_2H_5]}$

Putting values in above expression, we get:

$0.27=\frac{0.42\times 0.42}{[CH_3COOC_2H_5]}$

$[CH_3COOC_2H_5]=\frac{0.42\times 0.42}{0.27}=0.653mol/dm^3$

Hence, the concentration of ethyl ethanoate at equilibrium is $0.653mol/dm^3$

5 0

3 years ago

The elements in Period 5 on the Periodic Table are arranged from left to right in order of(1) decreasing atomic mass(2) decreasi

RUDIKE [14]

Going from left to right, they are ordered by increase in atomic number

6 0

3 years ago

Read 2 more answers

the volume of a substance must be measured several time during an experiment. which units should be used to measure the volume o

bija089 [108]

Answer:

Volume is often measured numerically using the International System of Units (SI unit), the cubic meter. for example volume of a cube is measured using a cubic centimeter (cm3), the metric system includes the liter (L) as a unit of volume, where one liter is the volume of a 10-centimeter cube.

3 0

3 years ago

Identify the bonds between atoms of each pair of elements as nonpolar covalent, moderately polar covenant, very covalent or ioni

Daniel [21]

In general, bonds with an electronegativity difference of 0-0.5 are nonpolar covalent, bonds with an EN difference of 0.5-2.0 are covalent, and anything above 2.0 is considered ionic.

To determine the bond types of the pairs of elements, we will need their EN values. We can subtract their EN values to find their EN difference.

H and Br: 2.96-2.20=0.76
Therefore a bond between H and Br would be moderately polar covalent.

Cl and F: 3.98-3.16=0.82
Therefore this bond is moderately polar covalent.

K and Cl: 3.16-0.82=2.34
Therefore this bond is ionic.

Li and O: 3.44-0.98=2.46
Therefore this bond is ionic.

Br and Br: Because these are the same element, meaning that they have the same EN value, we automatically know that their EN difference would be zero. Therefore, this bond is very covalent.

4 0

3 years ago

Suppose you use a microspope to look at the skin of an onion. What structure will you see that would not be found in a cell from

Studentka2010 [4]

c cell wall human cells do not have cell walls but do have cell membranes unlike plants that have both

7 0

3 years ago