During a solar eclipse, explain what would an observer
on the Moon see on the surface of the Earth?

Answer:

how many liters of 0.150 m hcl would be required to react completely with 8.00 grams of magnesium hydroxide

Explanation:

please give me brainlist and follow

the answer is gold cause oil wood and glass are electrical insulators

The oceans absorb the most sunlight from the options that we have here.

Seventy-one percent or more of the surface of the Earth is covered by the oceans. The result is that they get a lot of sunshine. The upper layers of the ocean absorb a large amount of the incoming solar energy, which enters the ocean waters.

Solar radiation is efficiently absorbed by water, especially in the visible light spectrum. The ocean heats the water as a result of absorbing sunshine. The oceans' ability to absorb solar energy is vital for driving a variety of marine phenomena, including currents, circulation patterns, and temperature distribution, as well as managing Earth's climate.

Learn more about earth:https://brainly.com/question/12041467

#SPJ1

Answer:

The answer is A. Oceans.

Explanation:

I did the test.

Answer:

Explanation:

A is solid, b is melting, c is freezing, d is liquid, e is evaporating, g is gas, and f is condensation.

Hello Mikaela!

Let's start from the top, letter G. Letter G should be gas. Letter F should be condensation. Letter E should be evaporation. Letter D should be liquid. Letter C should be freezing. Letter B should be melting. And letter A should be solid.

I really hope this helps!!

Answer:

number. so the option is c

Answer:

atomic number

Explanation:

i just know it

Answer:

a)

        Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺    30          2              30             2

#e⁻    30          0              28             2

b) 32

c) 30

d) Zn

Explanation:

There is some info missing. I will add the complete question.

Consider the following oxidation/reduction reaction.

         Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺                                                     2

#e⁻                                                     2

a) Fill in the number of protons and electrons for each product and reactant (two boxes have been filled in for you).

b) Verify that the number of protons on the left side of the chemical equation is equal to the number of protons of the right side. Show your work.

c) Verify that the number of electrons on the left side of the chemical equation is equal to the number of electrons of the right side. Show your work.

d) Which substance is being oxidized?

a) The atomic number of Zn is 30 so it will have 30 protons. Since it ts neutral, it will also have 30 electrons. Zn²⁺ will also have 30 protons but it lost 2 electrons, so it has 28 electrons. The atomic number of H⁺ is 1, so each H atom will have 1 proton (2 in total). But since H has 1 electron, and H⁺ lost 1 electron, H⁺ will have 0 electrons. The complete chart is:

        Zn(s) + 2 H⁺(aq) ⇒ Zn²⁺(aq) + H₂(g)

#p⁺    30          2              30             2

#e⁻    30          0              28             2

b) The total number of protons on the left side is: 30 + 2 = 32.

The total number of protons on the right side is: 30 + 2 = 32.

c) The total number of electrons on the left side is: 30 + 0 = 30.

The total number of electrons on the right side is: 28 + 2 = 30.

d) Zn(s) is oxidized because it loses electrons (from 30 to 28) and its number increases.

Answer:

100 HZ 1,000 HZ 10,000 HZ there you go :)

Answer:

100 hertz, 1,000 hertz, and 10,000 hertz

Explanation:

I took the k12 test :)

Answer: C

Explanation:

he never had evidence in the first place that was nearly enough.

Answer:

Please find equations in the attachment file.  

Explanation:

Answer:

I think the third one

Explanation:

i think

Answer:

electrons that are NOT shared equally

Explanation:

Answer:

Mitochondria

Explanation:

Answer:

Mitochondria

Explanation:

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

200.063

Hope this helps :T

Answer:

they can become smaller or start fall apart or aroud

Explanation:

Answer:

I will have the maths book

Answer:98

Explanation:

Answer:

The right approach is "50 g/l".

Explanation:

The given values are:

Mass or solute or precipitation,

= 0.15 kg

on converting it into "g", we get

= [tex]0.15 \ kg\times \frac{1000 \ g}{1 \ kg}[/tex]

= [tex]150 \ g[/tex]

Volume of solution,

=  3.00 L

Now,

The solubility of X will be:

=  [tex]\frac{Mass \ of \ X}{Volume \ of \ solution}[/tex]

On substituting the values, we get

=  [tex]\frac{150}{3}[/tex]

=  [tex]50 \ g /l[/tex]

Answer:

[tex]T_1=-91.18\°C[/tex]

Explanation:

Hello there!

In this case, given the T-V variation, we understand it is possible to apply the Charles' law as shown below:

[tex]\frac{T_1}{V_1}= \frac{T_2}{V_2}[/tex]

Thus, since we are interested in the initial temperature, we can solve for T1, plug in the volumes and use T2 in kelvins:

[tex]T_1= \frac{T_2V_1}{V_2}\\\\T_1= \frac{(18.00+273.15)K(1.75L)}{(2.80L)}\\\\T_1=182K-273.15\\\\T_1=-91.18\°C[/tex]

Best regards!

Answer:

hello your question is poorly written attached below is the complete question

answer : Kp = 4.75 * 10^-3

Explanation:

Kp = (76.4 * ( 50.3 )^2 )/ ((79.1)^2 * (80.6)^2 )

    = 193298.876 / 40646490.2116

    = 0.00475 ≈ 4.75 * 10^-3

attached below is the beginning part of the solution

[tex]\huge{\mathbb{\tt { QUESTION↓}}}[/tex]

Which of the following is a period 4 representative element?

O A. C

O B. An

O C. Ti

O D. K

[tex]\huge{\mathbb{\tt {ANSWER↓}}}[/tex]

[tex]\color{blue}{\tt {A.C ( Carbon )}}[/tex]

[tex]{\boxed{\boxed{\tt { WHAT \: IS \: CARBON?}}}}[/tex]

#CarryOnLearning

#LetsEnjoyTheSummer

Answer:

Learn how gifted students think. ...

Created tiered assignments for students. ...

Include a variety of levels in your classroom library. ...

Utilize their talents and interests. ...

Explore real-word application.

Answer:

19 °C

Explanation:

Step 1: Given and required data

Step 2: Calculate the temperature change (ΔT)

We will use the following expression.

Q = c × m × ΔT

ΔT = Q/c × m

ΔT = 300.2 J/(0.790 J/g.°C) × 20 g = 19 °C

Answer:

Hello your question lacks some required information attached below is the missing information

answer :

number of moles

Acetic acid = 0.061199 mole

Alcohol = 0.027320 mole

Explanation:

The starting volumes :  2.5mL of either alcohol and 3.5mL of either acid

for the purpose of this solution I will take 2.5 mL of 1-butanol and 3.5 mL of acetic acid

mass of 1-Butanol = 2.5 mL * 0.81 g/mol = 2.025 g

∴ number of moles of 1-butanol = 2.025g / 74.12 g/mol = 0.027320 mole

mass of acetic acid = 3.5 mL * 1.05 g/mol = 3.675 g

∴ number of moles of Acetic acid = 3.675 g/ 60.05 g/mol = 0.061199 mole

Reaction equation

CH3-CH2-CH2-CH2-OH + CH3-COOH + H+ (cat) ↔ CH3-CH2-CH2-CH2-O-CO-CH3 + H2O

Answer:

Decay-the breakdown of dead plants..

Earth- thermal energy comes from deep inside...

Fires- these consume feul...

Explanation:

Answer:

Fires - These consume fuel and covert chemical energy stored in that fuel into thermal, light and sound energy

Decay - The breakdown of dead plants and animals produces thermal energy

Earth - Thermal energy comes from deep inside and is called geothermal energy

Explanation:

Fires, when you burn wood, you convert chemical energy from the wood into thermal (warmth from the fire), light (glow from the fire), sound (crackling sound of wood burning)

Decay - I can't explain that one to you but there are power plants that use decomposition to produce energy

Earth - Beneath the crust there is the mantle, which consists of molten rock which produces a lot of thermal energy. This can be seen in geysers, where the molten rock heats water and hot water can burst out of the surface. Applies to hot springs too

Answer:

526g is the mass of this sample

Explanation:

To solve this question we must, as first, find the molar mass of Al₂(Cr₂O₇)₃ using the periodic table. The molar mass is defined as the mass of this compound per mole. With this value we can find the mass in 0.750 moles as follows:

Molar mass Al₂(Cr₂O₇)₃

2Al = 2*26.98g/mol = 53.96g/mol

6 Cr = 6*51.9961g/mol = 311.9766g/mol

21 O = 21*15.999g/mol = 335.979g/mol

53.96g/mol + 311.9766g/mol + 335.979g/mol

= 701.9156g/mol

The mass of 0.750 moles is:

0.750 moles * (701.9156g / mol) =

Answer:How can you tell how much gas is in these containers?

Small gas tanks are often used to supply gases for chemistry reactions.  A gas gauge will give some information about how much is in the tank, but quantitative estimates are needed so the reaction will be able to proceed to completion.  Knowing how to calculate needed parameters for gases is very helpful to avoid running out too early.

Conversions Between Moles and Gas Volume

Molar volume at STP can be used to convert from moles to gas volume and from gas volume to moles.  The equality of 1 mole = 22.4 L is the basis for the conversion factor.

Sample Problem One: Converting Gas Volume to Moles

Many metals react with acids to produce hydrogen gas.  A certain reaction produces 86.5 L of hydrogen gas at STP.  How many moles of hydrogen were produced?

Step 1: List the known quantities and plan the problem.

Known

86.5 L H2

1 mol = 22.4 L

Unknown

moles of H2

Apply a conversion factor to convert from liters to moles.

Step 2: Calculate.

Explanation:

Answer:

what grade is this?

Answer:

[tex]\boxed {\boxed {\sf 2 K + Cl_2 \rightarrow 2KCl}}[/tex]

Explanation:

The law of conservation of mass states that mass cannot be created or destroyed. The mass of the reactants must equal the mass of the products. Basically, the number of atoms at the beginning is the same as the end.

Count up the atoms on the left and right sides of the arrow. Remember to account for coefficients and subscripts.

1. 2Fe+3O₂⇒Fe₂O₃

Right: 2Fe + 3O₂

Left: Fe₂O₃

2. 2H₂+ O₂ ⇒ 2H₂O₂

Right: 2H₂+O₂

Left: 2H₂O₂

3. 2K+Cl₂⇒ 2KCl

Right: 2K + Cl₂

Left: 2KCl

4. C+O₂ ⇒ 2CO

Right: C+O₂

Left: 2CO

The only balanced equation that follows the conservation of mass is choice 3: 2K+Cl₂ ⇒2KCl

Answer:

B. Ksp = 1.7 × 10¯⁷

Explanation:

Hello there!

In this case, for this solubility equilibrium problem, we first need to set up the chemical reaction describing the dissolution of the involved salt, CuCl:

[tex]CuCl(s)\rightleftharpoons Cu^+(aq)+Cl^-(aq)[/tex]

Next, we write the corresponding equilibrium expression:

[tex]Ksp=[Cu^+][Cl^-][/tex]

Now, we need to calculate the concentrations of copper (I) and chloride ions at equilibrium; thus, given that 0.041 g of this solid is completely dissolved in 1.0 L of solution, we can firstly calculate the moles present in the solution:

[tex]n_{CuCl}=0.041gCuCl*\frac{1molCuCl}{99gCuCl} =4.14x10^-4mol[/tex]

Afterwards, since all the species in the reaction, CuCl, Cu+ and Cl- are in a 1:1:1 mole ratio, we realize that those moles correspond to ions in the solution, so their concentrations are:

[tex][Cu^+]=[Cl^-]=\frac{4.14x10^{-4}mol}{1.0L}= 4.14x10^{-4}M[/tex]

Then, we compute the Ksp by plug this value in the equilibrium expression:

[tex]Ksp=(4.14x10^{-4})(4.14x10^{-4})=1.7x10^{-7}[/tex]

Thus, the answer would be B. Ksp = 1.7 × 10¯⁷.

Regards!