Have ya helped anybody out today, how? And good job!

Answers

Answer 1

Answer:

I helped take care of my baby cousin :)

Explanation:


Related Questions

Question 18 (5 points)
(03.06 MC)
Which statement is true about oxygen and rocks? (5 points)
a
Both are mixtures.
Both are pure substances.
Oxygen is a mixture and a rock is a pure substance.
d
Oxygen is a pure substance and rocks are mixtures.

Answers

Answer:

d. oxygen is a pure substance and rocks are mixtures

Answer:

A rock is a mixture and oxygen is a pure substance

Explanation:

Oxygen is just O O O O O O and rocks have many things in it like minerals, fossils and rock stuff. I'm not a geologist

Solve and use correct sig figs AND units: (Example of how to type: 3.26 m2)
The density of mercury is 13.6 g/mL. What is the mass of 3,426 mL of mercury?

Answers

Answer:

m = 46593.6 g

Explanation:

Given data:

Mass of mercury = ?

Volume of mercury = 3426 mL

Density of mercury = 13.6 g/mL

Solution:

Formula:

d = m/v

d = density

m = mass

v = volume

by putting values,

13.6 g/mL = m/ 3426 mL

m =  13.6 g/mL × 3426 mL

m = 46593.6 g

2C3H7OH + 9O2 --> 6CO2 + 8H2O

Determine the number of grams of CO2 produced from the reaction of 5.55 moles of C3H7OH?

a
1466 g

b
16.7 g

c
367 g

d
12.2 g

e
733 g

Please show work

Answers

Answer 12.2g is the answer

What is the mass of 2409793.03 particles of N2?

Answers

ANSWER



ANSWER

EVIDENCE

what is 1/4 of 12 pleas i need help

Answers

Answer:

3

Explanation:

It's basically saying what number goes into 12 four times, I think.

An example of a high explosive is what?

Answers

Answer:

High explosives do not need to be contained to make their bang. Nitroglycerine, trinitrotoluene, and RDX are high explosives.

Explanation:

Write the chief ore of sodium and potassium respectively?

Answers

Answer:

K-sylvite

Na-rock salt

Explanation:

Sylvite is a colourless or white mineral consisting of potassium chloride, occurring typically as cubic crystals(Oxford dictionary). It is the primary ore of potassium metal. It appears colorless, sometimes with a shade of red.

Rock salt is a primary ore of sodium. It is found in rocks, seas etc. Rock salt is sometimes commonly called halite. It usually appears white in colour and is rich in sodium.

when 45mL of 0.25mol/L sulfuric acid is mixed w/ 25mL of 0.58mol/L Calcium hydroxide, the solution has a?

Answers

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong. Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

What is the balanced equation for the manufacture of ethanol from glucose

Answers

Answer:

C6H12O6 → 2C2H5OH + 2CO2

Explanation:

Glucose is an organic molecule, specifically a sugar, with the formula C612O6 while ethanol is another organic molecule with formula; C2H5OH.

However, as rightly said in this question, ethanol can be got from glucose via a process called fermentation in the presence of a catalyst called YEAST. The balanced equation is as follows:

C6H12O6 → 2C2H5OH + 2CO2

Questions
1. How would you describe life and why?​

Answers

boring. To be honest we all die at the end of the day

a sample of an unknown metal has a mass of 21.6g and volume of an 8.00cm3 calculate the density of the unknown metal

Answers

Answer:

2.70 g/cm³

Explanation:

The density of a substance can be found by using the formula

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

From the question we have

[tex]density = \frac{21.6}{8} \\ = 2.7[/tex]

We have the final answer as

2.70 g/cm³

Hope this helps you

What if I’m not really living just surviving

Answers

So it would be 100$ per 5 giftcard
( I do this not to get banned :)

Which HTML tag is used to create a heading on a web page? (5 points)

Answers

HTML headings are defined with the <h1> to <h6> tags. <h1> defines the most important heading.

hope this helps ^^

a compound consists of 81.8% C and 18.2% H by mass. What is its empirical formula?​

Answers

Answer:

Empirical formula of 81.8 carbon and 18.2 hydrogen

Steps

Find the empirical formula of a compound that has 81.8% of Carbon (C), 18.2% of Hydrogen (H).Divide by fractional component of each mole value: C=1.5354936431103, H=4.0709872862205Round to closest whole numbers: C=2, H=4 Combine to get the empirical formula: C2H4

Most of the carbon in the rocks that form Earth's mantle and crust was stored there when Earth formed. The rest of Earth's carbon is stored and exchanged in many ways.In a model of the carbon cycle, which process does NOT contribute directly to the storage of carbon within sediment?

Answers

Answer:

Photosynthesis.

Explanation:

In photosynthesis process, carbondioxide gas enters into plant leaves from which plant produces organic molecules such as glucose. This glucose helps the plant to increase it growth and complete development stages and finally the plant dies and buried in the soil so due to decomposition process, the carbon present in the plant body releases in the soil and become part of sediments. So indirectly photosynthesis process provides carbon to the soil.

USE LETTERS FOR ANSWERS, NO NEED TO EXPLAIN
a) Substitute symbols and formulas for words.
b) Predict the products. If no reaction occurs, write “NR” after the --> sign. c) Include abbreviations for the physical state.
d) Write out and balance the equation.

6. Mercury is poured into an aqueous solution of zinc nitrate.

7. Solutions of potassium iodide and lead (II) nitrate are mixed. The resulting lead compound is a precipitate.


thank you! :)

Answers

Answer:

Ok:

Explanation:

6a) [tex]Hg + Zn(NO_3)_2\\[/tex]

b) NR

c) [tex]Hg_{(l)} + Zn(NO_3)_2 {(aq)}=> NR[/tex]

d) Welp, no reaction so i don't know.

7a) [tex]KI + Pb(NO_3)_2[/tex]

b) [tex]PbI_2 + KNO_3[/tex]

c) All are aqeuous except for PbI2 which is solid

d) [tex]2KI _{(aq)}+ Pb(NO_3)_2_{(aq)} => PbI_2_{(s)} + 2KNO_3_{(aq)}[/tex]

Check if that is ok or if my work has any issues :).

PLEASE HELP I'M BEING TIMED!! Which type of star system has the most stars?
A. Open Cluster
B. globular cluster
C. Eclipsing binary
D. binary star system ​

Answers

Answer:

Hi! It's B - globular cluster

Answer:

B Globular Cluster

Explanation:

Sorry if I am wrong :)

What are two types of matter are pure substances

Answers

Answer:

Elements and compounds are two types of pure substances.

Explanation:

You push 100kg door with force of 200 with what force does the door push back on you

Answers

Answer:

for every action there is equal and oposite reaction so door als pushes us back with same force. ie;200N.

What happened to your heart rate? What does the increased heart rate tell us about the circulatory system? Why do you think the circulatory system was pumping blood faster when you were running?
Pls help ill give brainliest

Answers

What the person above me said is correct

How many grams of potassium phosphate (K3PO4) will be formed if you react 20.16 grams of potassium hydroxide (KOH) with excess phosphoric acid?

3 KOH + H3PO4 → K3PO4 + 3 H2O

_ grams of K3PO4 (round to 3 sig figs)

a) 234
b) 25.4
c) 64.5
d) 58.7

Answers

I think it’s a or b I tried

25.4g of potassium phosphate (K3PO4) are formed.

What is potassium phosphate?

Potassium phosphate is an inorganic salts of potassium and phosphate.

How to convert mole to grams?Calculate the number of moles mentioned in the questionFind the molar mass of the substance.Multiply both the values.

3 KOH + H3PO4 → K3PO4 + 3 H2O

Step 1: Convert from grams to moles using the molar mass.

Step 2: Use the molar ratio to determine moles of other substance.

Step 3: Convert from mole to grams using the molar mass.

Convert grams to moles using the molar mass

25.4g KOH (1 mol KOH/56.098g KOH)

= 0.3593mol KOH

Mass of H3PO4 produced

0.3593 mol KOH ( 1 mol H3PO4/3 mol KOH)

= 0.1197 mol H3PO4

converting mole to grams

0.1197 mol H3PO4 (98g H3PO4/1 mol H3PO4)

= 11.730g H3PO4

Mass of K3PO4 produced

0.3593 mol KOH (1 mol K3PO4/3 mol KOH)

= 0.1197 mol K3PO4

converting mole to grams

0.1197 mol K3PO4 (212.267g K3PO4/1 MOL K3PO4)

= 25.408g K3PO4

Hence, option b is the correct answer.

To learn more about mole to gram conversion here

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Shonda’s car gets an average of LaTeX: 27 miles per gallon. Gas costs $LaTeX: 2.25 per gallon and she drives LaTeX: 892 miles to get from Baltimore, MD to Orlando, FL. What are the conversion factors she could use to calculate the cost of gas to get from Baltimore to Orlando? How much will she spend on gas?

Answers

The conversion factors she could use to calculate the cost of gas : 33.037 gallon from Baltimore to Orlando

She will spend $74.33 on gas

Further explanation

Given

Shonda’s car : 27 miles per gallon

Gas cost = $ 2.25/gallon

Distance Baltimore to Orlando = 892 miles

Required

Cost of gas

Solution

Total gallon needed to get from Baltimore to Orlando :

892 miles : 27 miles/gallon = 33.037 gallon

Cost of gas :

33.037 gallon x $2.25/gallon = $74.33

On any given day or night, what determines the visible phase of the moon

A. how much of the sunlit side of the moon is visible

B. the time of day or night that we look at the moon

C. how far the moon has rotated on its axis

D. how much of the moon is lit by the sun

Answers

Answer:

i think the answer is D if not its A

1. __N2 + __H2-> __NH3

2. __Fe + __HCl-> __H2 + __FeCl3

Answers

Answer:

N2+ 3H2-> 2NH3

2Fe + 6HCl -> 3H2 + 2FeCl3

9. How long will it take 120 grams of Strontium-90 to decay to 7.5 grams?
with steps pls​

Answers

Answer:

116 years

Explanation:

To solve this, we will use the half life equation;

A(t) = A_o(½)^(t/t_½)

Where;

A(t) is the amount of strontium left after t years;

A_o is the initial quantity of strontium that will undergo decay;

t_½ is the half-life of strontium

t is the time it will take to decay

We are given;

A(t) = 7.5 g

A_o = 120 g

From online values, half life of strontium-90 is 29 years. Thus, t_½ = 29

Thus;

7.5 = 120 × ½^(t/29)

Divide both sides by 120 to get;

7.5/120 = ½^(t/29)

0.0625 = ½^(t/29)

In 0.0625 = (t/29) In ½

-2.772589 = (t/29) × (-0.693147)

(t/29) = -2.772589/(-0.693147)

t/29 = 4

t = 29 × 4

t = 116 years

What is a part's structure related to?

Answers

huh i need you to be more specific

Balance the chemical reaction for the combustion of methanol by adding the correct coefficients below

__CH3OH +__O2(little box)__CO2 +__H2O

Answers

Answer:

[tex]2~CH_3OH+3~O_2\rightarrow2~CO_2+4~H_2O\\[/tex]

The coefficients would be 2, 3, 2, and 4.

Explanation:

If we want to check this we would multiply the coefficient by each element. What we want is to have the same number of atoms on each side.

Reactant side:

# of carbon atoms: 2# of hydrogen atoms: 8# of oxygen atoms: 8

Product side:

# of carbon atoms: 2# of hydrogen atoms: 8# of oxygen atoms: 8

And that's it!

chemistry between people is the stongest like mine and urs right?

Answers

Answer:

..sure....

Explanation:

Answer:

hmm i dont see it homie sike gimmi that bootiy

What is a cation and where can you find it on the periodic table?

What is an anion and where can you find it on the periodic table?

Answers

Answer:

A cation is an ion with fewer electrons than protons. Therefore, it has a positive charge. The electric charge on a proton is equal in amount to the charge on an electron. Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Explanation:

An anion and cation cannot be specifically found on the periodic table.    

The chemical elements are shown in tabular form on the periodic table, sometimes referred to as the periodic table of the elements. It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.

What is an anion?

An ion with fewer electrons than protons is known as a cation. It is hence positively charged. Protons and electrons both have the same amount of electric charge. Atoms or radicals (groups of atoms) that have gained electrons are known as anions. Anions now have a negative charge because they have more electrons than protons.

Alkali metals and alkaline earth metals always produce cations, while halogens always produce anions. Iron, silver, and nickel are among the most common non-metals that create cations, whereas the majority of other metals do the same (e.g. oxygen, carbon, sulphur).

The periodic table does not clearly list an anion or cation.

To learn more abut Periodic table refer to:

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What is the [H+] if the pH of a
solution is 1.65?

Answers

Answer:

So the concentration of hydrogen in solution of 1.65 pH is 2.2 × 10⁻²

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