The total mass of the reactants is equal to the total mass of products. this is known as the conservation of what?

What is the first step of a ladybug during the growth and development process

Sunny_sXe [5.5K]

Answer:

Damian here! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

The newly hatched larva is in its first instar, a developmental stage that occurs between molts. It feeds until it grows too big for its cuticle, or soft shell, and then it molts. After molting, the larva is in the second instar. Ladybug larvae usually molt through four instars, or larval stages, before preparing to pupate.

Explanation:

hope this helps? :))

7 0

3 years ago

What is the most important factor in determining climates.

Ira Lisetskai [31]

Latitude - Many factors influence the climate of a region. The most important factor is latitude because different latitudes receive different amounts of solar radiation. The maximum annual temperature of the Earth, showing a roughly gradual temperature gradient from the low to the high latitudes.

4 0

3 years ago

Fill in the coefficients that will balance the following reaction: a0Hg(CO3)2 + a1AgCl → a2HgCl4 + a3Ag2CO3

My name is Ann [436]

$a_{0}=1 \\ \\ 
 a_{1}=4 \\ \\ 
 a_{2}=1 \\ \\ 
 a_{3}=2 \\ \\$

The explanation is shown in the image attached with

3 0

3 years ago

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The meniscus of mercury in a glass capillary tube is convex because of

AnnZ [28]

Answer:

D

Explanation:

Firstly in deciding whether the meniscus of a liquid in a glass capillary tube will be convex or concave, we need to understand 2 forces that are in play here. These are the adhesive and cohesive forces.

The cohesive forces are the forces between the molecules present in the liquid. It can be seen as the force of attraction between the molecules of the liquid

The adhesive forces are the forces between the molecules of the liquid and the molecules of the glass.

The reason why mercury has a convex meniscus is because the cohesive forces between the mercury molecules is greater than the adhesive forces between the molecules of the glass and molecules of mercury.

What we are saying in essence is that the intramolecular force of attraction between mercury molecules is greater than the intermolecular force of attraction between the molecules of the glass and water.

Hence we say mercury does not wet glass as the cohesive forces of attraction are greater than the adhesive attraction forces

6 0

3 years ago

Sulfur dioxide and nitrogen dioxide react at 298 K via the reaction

tatiyna

O₂ reacts increasing the NO₂ to 0.718 moles. At the return to equilibrium,

the amount SO₃ in the container approximately 0.931 moles.

<h3>How can the equilibrium values indicate the amount of SO₃?</h3>

The equilibrium constant for the reaction aA + bB ⇌ cC + dD is presented as follows;

$K_c = \mathbf{\dfrac{[C]^c_{eq} +[D]^d_{eq} }{[A]^a_{eq} +[B]^b_{eq} }}$

The equilibrium constant for the reaction, whereby the volume is same for the contents is therefore;

$K = \dfrac{0.654 \times 0.718}{0.369 \times 0.369} \approx 3.45$

Given that the NO reacts with the O₂ as follows;

2NO + O₂ $\longrightarrow$ 2NO₂

We have;

The number of moles of NO₂ added = 0.718 moles

The new number of moles are therefore;

$K = \mathbf{ \dfrac{(0.654 + x) \times (0+ x)}{(0.369-x) \times (0.369 + 0.718-x)}} \approx 3.45$

Which gives;

0 = (0.654 + x) × x - 3.45 × (0.369 × (0.369 + 0.718)

2.45·x² - 5.6772·x + 1.384 = 0

$x = \dfrac{5.6772 \pm \sqrt{(-5.6772)^2 - 4 \times 2.45 \times (1.3834)} }{2\times 2.45}$

x ≈ 0.2768 or x ≈ 2.04

The possible number of moles of SO₃ in the container after equilibrium is reestablished is therefore;

n ≈ 0.654 + 0.2768 ≈ 0.931

The number of moles of SO₃ in the container after returning to equilibrium is 0.931 moles

Learn more about equilibrium constant here:

brainly.com/question/10444736

6 0

2 years ago