Answers
Related Questions
23)
A reaction between an alcohol and an organic acid is classified as
A)
fermentation
B)
saponification
C)
esterification
D)
substitution
Answers
Answer:
it's esterification reaction
Choose all the answers that apply.
Fluorine (F) has an atomic number of 9 and an atomic weight of 18.99. Fluorine has _____.
at least one isotope
10 neutrons
18 electrons
9 protons
an atomic mass of 19
Answers
Answer:
9 protons
Explanation:
By looking at the periodic table, you will see that Fluorine has 9 protons. Since the number of electrons equal the number of protons, Fluorine has 9 electrons as well. Meanwhile, it's mass number of 19, minus 10 neutrons, gives you 9 protons or electrons. Hence, the atom would be Fluorine.
hope u make me brainlesst ʘ‿ʘ
Answer:
i think so for this i will 9 protons . atomic mass is 19. 10 neutrons
Copper (II) Oxide (CuO) has atoms that form which type of bond?
Answers
Answer:
Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+). Cupric oxide, or copper (II) oxide, is an inorganic compound with the chemical formula CuO.
Explanation:
I hope that helps you.
A student has 475 mL of a 4.5 M HNO3 solution. He leaves the top of the container Monday morning the volume of solution is now 347 mL. What is the conventtration of the solution now
Answers
Answer:
6.1 M
Explanation:
Step 1: Calculate the moles of HNO₃ in the initial solution
A student has 475 mL (0.475 L) of a 4.5 M HNO₃ (4.5 mol HNO₃/ L) solution.
0.475 L × 4.5 mol HNO₃/ L = 2.1 mol HNO₃
He leaves the top of the container open, so water will evaporate, but the moles of HNO₃ will remain the same.
Step 2: Calculate the final concentration of the solution
2.1 moles of HNO₃ are in 347 mL (0.347 L) of solution.
[HNO₃] = 2.1 mol / 0.347 L = 6.1 M
How will nuclear fusion change as the sun ages?
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Answer:
It won't be good.
Explanation:
In the core of the sun, hydrogen is produced by nuclear fusion. when the sun ages, it starts to run out of the hydrogen. when it runs out, nuclear fusion can't generate heat, and then the sun expands, becoming a red giant.
Helppppppppp DON’T GUESSS
Answers
Answer:
A. For every mole of carbon dioxide consumed, one mole of water is consumed
Explanation:
The photosynthetic equation is given as follows:
6CO2 + 6H2O → C6H12O6 + 6O2
The coefficient in front of each reactant and product is used to represent the number of moles needed for each compound/element in the reaction.
Based on this, this means that 6 moles of CO2 (carbon dioxide) needs to react with 6 moles of H2O (water) to form the products.
In a simpler form, this also means that for every 1 mole of carbon dioxide (CO2) consumed, one (1) mole of water (H2O) is consumed.
When iron combines with oxygen gas and forms rust, the total mass of the products...
is the same as the mass of the reactants.
is less than the mass of the reactants.
depends on the reaction conditions.
is greater than the mass of the reactants.
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Someone Please HELP Me
2C4H10(g) + 13O2(g) → 8CO2(g) + 10 H2O(g)
How many liters of O2 are required to produce 3.15g of carbon dioxide?
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Pls hurry
Light is the fastest known entity in our universe.
O True
O False
Mark this and return
Save and Exit
Answers
Answer:
True
Explanation:
Answer:
true
Explanation:
source(s): trust me bro
2
CuCl2 +4KI -> 2 Cul + 4 KCI + 12
Answers
Answer:
Explanation:
This is an example of a limiting reactant question, and is very common as a general chemistry problem.
We first see the balanced equation, that is:
2CuCl2+4KI→2CuI+4KCl+I2
We first need to find the limiting reactant
We see that 0.56 g of copper(II) chloride (CuCl2) reacts with 0.64 g of potassium iodide (KI) . So, let's convert those amounts into moles.
Copper(II) chloride has a molar mass of
134.45 g/mol . So in 0.56 g of copper(II) chloride, then there exist
0.56g134.45g/mol≈4.17⋅10−3 mol
Potassium iodide has a molar mass of
166 g/mol . So, in 0.64 g of potassium iodide, there exist
if it wrong i am sorry
Can someone please help with this 4 mark question!
Answers
Answer:
6.941 u
Explanation:
I really need help please.
NaOH + AlCl3 --> Al(OH)3 + NaCI.
How many grams of AlCl3 are needed to produce 100.0 g NaCl?
Answers
Answer:
Grams of AlCl₃ ~ 80 grams (1 sig. fig.)
Explanation:
Write and balance given equation.
Coefficients should be in smallest whole number ratios. => called ‘The Standard Equation’ and is assumed to be at 0˚C & 1atm. pressure.
3NaOH + AlCl₃ => Al(OH)₃ + 3NaCI
Write below compound what’s given and what’s needed, i.e., to be calculated.
Rxn: 3NaOH + AlCl₃ => Al(OH)₃ + 3NaCI
Given: --------- (?g) -------- 100.0g
Rxn Moles: 3 moles 1 mole 1 mole 3 moles
Calc’d Moles: --------- (? Moles) -------- 100.0g/58g∙molˉ¹
= 1.724 mol NaCl
Calculate moles AlCl₃ needed using mole ratios:
(? moles AlCl₃/1 mole AlCl₃) = (1.724 moles NaCl/3 moles NaCl)
=> ? moles AlCl₃ = (1.724 moles NaCl x 1 mole AlCl₃) / (3 moles NaCl)
=> ? moles AlCl₃ = (1.724 x 1 / 3) mole AlCl₃ = 0.575 mole AlCl₃ needed
Convert moles AlCl₃ needed to grams AlCl₃ needed:
Grams AlCl₃ needed = calculated moles AlCl₃ x formula wt. AlCl₃
= 0.575 mole AlCl₃ x 133.34 grams AlCl₃/mole AlCl₃
= 76.6705 grams AlCl₃ needed (calculated answer)
Express answer in appropriate number of sig. figs.
Number of sig. figs. for answer = the given measured data having the least number of sig. figs.In this case, grams of NaCl = 100.0 grams (measured data) contains only 1 sig. fig. (Do not use conversion factors or universal constants)Therefore the final answer => Grams of AlCl₃ ~ 80 grams (1 sig. fig.)Imagine that you meet with the team of scientists who assembled the graphs in part B. What questions would you ask the team about the data presented?
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Answer:
They made this graphics, how they measured the gas and how this affected the climate change horribly.
They created these images to show how the gas was measured and how the climate change was adversely affected the greenhouse gases.
What is greenhouse gases?A greenhouse gas is a gas that produces the greenhouse effect by both absorbing and emitting radiant energy at thermal infrared wavelengths. The five main greenhouse gases in the atmosphere of Earth are ozone, carbon dioxide, methane, and water vapor.
The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere.
The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.
Therefore, how the climate change was adversely impacted the greenhouse gases must ask the team.
Learn more about greenhouse gases, here:
https://brainly.com/question/13093450
#SPJ2
which element dissolves readily in water to form an alkaline solution?
pls help
Answers
Answer:
An alkaline solution can be formed when a metal oxide is dissolved in water. An acidic solution can be formed when a non-metal oxide is dissolved in water. For example, magnesium oxide dissolves to form alkaline solutions.
79.4 grams of C3H8 are consumed with an excess of oxygen in the reaction 1 C3H8 + 5 O2 --> 3 CO2 + 4 H2O. How many moles of oxygen (O2) are consumed in this reaction?How many moles of carbon dioxide (CO2) are formed in this reaction? &
How many moles of water (H2O) are formed in this reaction?
Answers
Answer:
II would say there is co2 so i would say 30.4
Explanation:
Hope this helps
If I have 0.070 moles of gas at a pressure of 0.20 atm and at a temperature of 8.00°C,
what is the volume of the container that the gas is in?
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Answer:
PV=nRT
0.20×v = 0.070×8.00
0.20V= 0.56
0.20v÷0.20v = 0.56÷0.20v
= 2.8
Carbohydrates are found in ..... Question 5 options: water alcohols plastics starchy sugar-filled foods mutil choice
Answers
starchy sugar filled foods contain carbohydrates since carbohydrates are sugar chains
answer asap
Food caught on fire on a restaurant's stove. How much thermal energy was present?
A. only a little compared to the total amount of energy
B. a lot of the energy was thermal
C. none of the energy was thermal
D. it was mostly potential energy, not thermal
Answers
what are some of the Differces between normal cells and cancer cells?
Answers
Answer:
Normal cells are either repaired or die (undergo apoptosis) when they are damaged or get old. Cancer cells are either not repaired or do not undergo apoptosis.
Explanation:
What are the parts of the glowstick? What are the chemicals inside?
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In what way is psychology connected to the natural sciences and different than other social sciences?
a. It explores the influences of society on individuals and their behavior.
b. It explores the influences of society on group behavior.
c. It explores biological explanations for human behavior.
d. It proved that human behavior is the result of biology
Answers
It explored the influences of society on individuals and their behavior
A child receives a balloon filled with 47 L of helium from a vendor at an amusement park. The temperature outside is 320 K. What will the volume of the balloon be when the child brings it home to an air-conditioned house at 295 K? Assume that the pressure stays the same. Answer in units of L.
Answers
Answer:
43.3 L
Explanation:
Applying,
V/T = V'/T'................... Equation 1
Where V = Initial volume of the ball0on, T = Initial temperature of the balloon, V' = Final volume of the balloon, T' = Final Temperature of the balloon.
make V' the subject of the equation
V' = VT'/T................ Equation 2
From the question,
Given: V = 47 L, T = 320 K, T' = 295 K
Substitute these values into equation 2
V' = (47×295)/320
V' = 43.3 L
When Earth’s axis points away from the sun, the _________ Hemisphere has the longer days of summer.
Nort
Answers
Answer: northern hemisphere
Explanation: I looked it up. Plus I took a test with this question and when the teacher went over the answer i got it right.
an evacuated cylinder has a volume of 50 liters. if 20 liters of nitrogen fas and 20 liters of oxygen gas are pumped into this evacuated cylinder, how much of the cylinder is filled with the two gasses?
Answers
The nitrogen gas and the oxygen gas will both occupy 50 liters.
Volume of a gasLet us recall form the kinetic theory of gases that a gas is in constant random motion. The gas does not have a specific volume but takes on the volume of the container since it will expand and fill the container.
The volume occupied by the two gases will be the same as the volume of the container. Hence, the nitrogen gas and the oxygen gas will both occupy 50 liters.
Learn more about volume of a gas: https://brainly.com/question/4519953
Answer:
B. The entire container because gases will expand to fill it.
Explanation:
I took to test, plus it directly says this in the lesson
help please this is a major grade (my birthday is next week) if i dont pass i wont celebrate my birthday please help!
Answers
Answer:
The answer to the question is C
what is the atomic radius of sulfur?
Answers
Answer:
16
Explanation:
Atomic mass: 32.065 u
Electrons per shell: 2,8,6
Symbol: S
what is the proper formulanGaseous Butane (C4H10) that reacts with Gaseous Oxygen (O2) in a combustion reaction to form Carbon dioxide Gas and Gaseous Water (Dihydrogen monoxide).
Answers
Answer:
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Explanation:
The balanced equation for the reaction between butane and oxygen to produce carbon dioxide and water can be written as follow:
C₄H₁₀ + O₂ —> CO₂ + H₂O
Next, we shall balanced the equation. This is illustrated below:
C₄H₁₀ + O₂ —> CO₂ + H₂O
There are 4 atoms of C on the left side and 1 atom on the right side. It can be balance by writing 4 before CO₂ as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + H₂O
There are 10 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 5 before H₂O as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + 5H₂O
There are 2 atoms of O on the left side and a total of 13 atoms on the right side. It can be balance by writing 13/2 before O₂ as shown below:
C₄H₁₀ + 13/2O₂ —> 4CO₂ + 5H₂O
Multiply through by 2 to express in whole number ratio.
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Thus, the equation is balanced.
At the Sprite bottling plant where the temperature is at 235K, each bottle can hold 3.80 atm of pressurized carbon dioxide gas (to make the soda fizzy). At room temperature 298K what is the new pressure?
Answers
Answer:
P2 = 4.76 atm
Explanation:
Given:
T1 = 235K. P1 = 3.80 atm
T2 = 298K. P2 = ?
Here, we use Gay-Lussac's law:
P1/T1 = P2/T2
Solving for P2, we get
P2 = (T2/T1)P1
= (298K/238K)(3.80 atm)
= 4.76 atm
Which statement best explains what causes the phase change from solid ice to liquid water?
a.Heat is released as ice turns into liquid water.
b.The mass increases when ice turns into liquid water.
c.Heat is absorbed as ice turns into liquid water.
d.The hydrogen bonds prevent the absorption of heat.
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In a symbolic equation, chemical names are used for reactants and product. True or false
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Answer
false
Explanation:
hope it helps.......
This is a false statement!
In the symbolic equation, chemical formulas are used instead of chemical names for reactants and products, while symbols are used to indicate the phase of each substance. It should be apparent that the chemical shorthand method is the quickest and clearest method for writing chemical equations.