suppose you use a pitcher to to estimate 1.25 qt of water ( experimental volume) . You later measured the volume more precisely and found it to be 1.34 qt (accepted volume) what is the percent error in your initial measurement. be sure to report your answer to the proper number of significant figures ​

Answer:

D

Explanation:

Took the test

Answer:

D

Explanation:

Got it right on my test

Answer:

[tex] \huge \sf \boxed d[/tex]

The strength of an acid depends on the concentration of the hydronium ions present in a solution.

The the molarity 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution is 0.063 moles per liter of the solution.

The molarity of a solution is the number of moles of solute present is per liter of a given solution which can be effected by the change of any temperature it is denoted by M is known as molarity of a solution.

Here,

Molarity = number of moles of solute / volume of solution in liiters.

Molarity = mass of solute / molar mass of solute ×   1000/ volume in ml

molar mass of  lead (IV) nitrate = 331.2

Substituting the value in formula,

Molarity = 9.82 / 331.2 ×  1000/ 465 ml

Molarity = 0.063 moles pe liter.

Therefore, the molarity 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution is 0.063 moles per liter of the solution.

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Answer:

Five main characteristics of sedimentary rocks are: ... Sedimentary rocks are largely found on the Earth's surface. They cover 75% area of the Earth. These rocks are generally not crystalline in nature. They are soft and have many layers as they are formed due to the deposition of sediments

Explanation:

-bro look it up

Answer:

pkw= pH + pOH.

Explanation:

As. [H3O+]  equals [OH-] then pH  must equal pOH because  they are just negative logs of the  respective concentration, which are equal.

Answer:

C. NaHCO3 → Na2CO3 + H2O + CO2

Explanation:

» For a balanced equation, the number of atoms of reactants and products must be equal.

» In equation C, the reactant side has one sodium atom while ptoduct side has 2 sodium atoms.

» The balanced equations mus be;

[tex]{ \rm{ 2NaHCO _{3(aq)} → Na _{2}CO _{3(s)}+ H _{2} O _{(l)} + }CO _{2(g)} }[/tex]

Answer:

Option C

Explanation:

Let's balance that

[tex]\\ \tt\hookrightarrow 2NaHCO_3\longrightarrow Na_2CO_3+H_2O+CO_2[/tex]

On reactant side

On products side

Answer:

(1) Ca (3) Mg(2) K (4) Zn

Explanation:

will react most rapidly

Answer:

Ultraviolet Waves

Explanation:

Because these waves have higher frequencies then

visible lights so they carry more energy

Answer:

A) 6.2*10^6

B) 3.7*10^-4

Explanation:

We have that the  two significant redox processes  is given as

reduction reaction

From the question we are told

identify two significant redox processes in biochemical systems​

Generally the the are two name that comes to mind when redox reaction is mentioned

And these makes two significant Redox processes in biochemical systems​

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Taking into account the definition of oxidation number, the oxidation numbers of S in H₂SO₃ is 4.

The oxidation number is the charge that an atom has; is an integer that represents the number of electrons an atom puts into play when it forms a given compound.

In other words, the oxidation number of an element is a value that indicates the number of electrons that element gains or loses when it combines with another.

To determine the oxidation state of different elements it is necessary to know that:

On the other side, the sum of the oxidation numbers of the existing elements in a chemical formula must add up to zero.

Then, considering the oxidation numbers of each element, multiplying it by the number of existing elements in the chemical formula and adding it and equaling it to zero, the value of the missing oxidation number can be obtained.

In this case, the oxidation numbers of S in H₂SO₃ is calculated as:

2× (+1) + oxidation numbers of S + 3×(-2)= 0

2 + oxidation numbers of S -6= 0

oxidation numbers of S -4= 0

oxidation numbers of S= 4

Finally, the oxidation numbers of S in H₂SO₃ is 4.

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Answer:

51.61% of O in C₂H₆O₂

Explanation:

First find the total mass: C = 12 , H = 1 , O = 16

total mass of C₂H₆O₂ = 12 * 2 + 1 * 6 + 16 * 2 = 62

so total mass of oxygen, O₂ in this is: 16 * 2 = 32

⇒ ( 32 / 62 ) * 100

⇒ 51.61%

Answer:

A. the muscles in her leg relax and contract to move the bones (is the answer)

Explanation:

Answer:

the answer is 5,3,4

Explanation:

it balances the eqaution

Answer:

Bones are the correct answer.

Answer:

They fluff their feathers for warmth.

Explanation:

It was in the explanation on Edge.

Tufted titmouse migrate for the winter that allows it to stay in broadleaf forest year round. Hence, option b is correct.

The Tufted Titmouse is a little, grey bird with an echoing call that is prevalent in eastern deciduous woodlands and a regular feeder visitor.

These birds have huge black eyes, a short, round beak, and a brushy crest, which give them a peaceful yet urgent appearance that complements the way they dart through trees, dangle from twigs, and land at bird feeders.

Tufted Titmice frequently visit backyard bird feeders, particularly in the winter. Although suet, peanuts, and other seeds are also acceptable, they prefer sunflower seeds.

The tufted titmice live in a variety of environments, such as disturbed areas, semi-open areas, and deciduous and mixed woods. They are a frequent visitor to bird feeders and are prevalent in residential settings with trees. Hence, option b is correct.

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Answer:

jesus

Explanation:

Jesus is always the answer LOL

Answer:

uhm I'm not sure if this is the right answer? sorry D:

5.95e-6

Answer:

0.0595 decimeter(dm)=0.00000595km

Explanation:

Answer:

When it comes to how to measure sugar, you need the right measuring tools. All sugar varieties are considered a dry ingredients so use dry measuring cups and measuring spoons.

Explanation: well there are only a few things you can use to measure things that aren't water so this only makes sense.

Answer: Some of the highest mountain ranges in the world are Himalayas, Andes, Rocky, Mountains can be of different types depending upon the process of origin.

Explanation:

Just trust me

Answer:(i) Voltaic cell

A voltaic cell is a device that uses a chemical reaction to produce electrical energy.

a. Electron flow

b. Voltmeter or lightbulb

c. Electron flow

d. Cathode or Cu

e. Cu²⁺(aq) and NO₃⁻(aq)

f. Salt bridge

g. Zn²⁺(aq)

h. Anode or Zn

Answer: Yes

Explanation:

It is all to do with the nature of sunlight and how it interacts with Earth's atmosphere.The sun's light appears to be white but it is made up of all the colours of the rainbow. When the light travels through our atmosphere it is scattered in all directions by all the gases and particles in the air.The blue light is scattered more than other colours because it travels in smaller and shorter waves, this is why the most prominent colour in the sky is blue. 

Answer:

45.20mL

Explanation:

Hello!

To find the volume of a cube given mass and density, we can use the equation [tex]p=\frac{m}{V}[/tex]

p=density

m=mass

V=volume

Let's rearrange the equation so it's equal to volume.

[tex]v=\frac{m}{p}[/tex]

Let's add in the numbers. m is 55.6g and density is 1.23g/ml

v=(55.6g)/(1.23g/mL)

v=45.20mL

Statement:

The mass of cube is 55.6 g and the density is 1.23 g/ml.

To find out:

The volume of the cube.

Solution:

[tex] \sf \: density = \frac{mass}{volume} \\ \sf \: = > volume = \frac{mass}{density} [/tex]

[tex] \sf = \frac{55.6}{1.23} ml \\ \sf= 45.2 \: ml[/tex]

Answer:

The volume of the cube is 45.2 ml.

Hope you could understand.

If you have any query, feel free to ask.