Answer:
The answer is "From Chemical to Mechanical.".
Explanation:
In this question, chemical energy is an organic compound that includes contains energy from certain chains for the exergonic responses that happen when fuels emitters inside the form of heat throughout a chemical process, in which the skin converts the chemical energy in food into mechanical energy and heat.
To balance the reaction what coefficients (numbers) are needed: HBr +KOH ---> KBr + H2O
Answer:
H2Br + 2KOH ----- K2Br + 2H2O
A fully inflated hot air balloon has a volume of 1,840,000 liters at 100˚C. What approximate volume will the balloon have at 50˚C?
Answer:
920,000 liters
Explanation:
i divided by 2
Mg (s) + 2 HCl (aq) --> MgCl2 (aq) + H2 (g)
Use the equation above to determine the number of grams of magnesium chloride, MgCl2 , that can be produced if 4.00 moles of HCl (hydrochloric acid) react. please show all work and record your answer with proper units and significant figures.
Pls help
Answer:
m = 190. g MgCl2
Explanation:
Use a molar ratio to get the # of moles MgCl2 produced from 4.00 mol of HCl:
4.00 mol HCl × (1 mol MgCl2/2 mol HCl) = 2.00 mil MgCl2
So 2.00 moles of MgCl2 will be produced. To find the mass in grams, use the molar mass of MgCl2:
2.00 mol MgCl2 × (95.211 g MgCl2/1 mol MgCl2)
= 190. g MgCl2
Please help this is due soon
What do sex hormones do?
Answer:
Hormones help regulate many bodily processes, such as appetite, sleep, and growth. Sex hormones are those that play an essential role in sexual development and reproduction. The main glands that produce sex hormones are the adrenal glands and the gonads, which include the ovaries in females and testes in males
Explanation:
A ball rolling down a hill will:
keep rolling forever
roll until stopped by a force
gain potential energy
Choose one food chain in the web. Name all of the organisms in that chain. Start with a producer and end with the top level consumer.
Answer:
Sun
↓
Alfalfa
↓
Rabbit
↓
Coyote
Explanation:
To find - Choose one food chain in the web. Name all of the organisms in that chain. Start with a producer and end with the top level consumer.
Solution -
We know that,
A food chain is a series of events in which one organism eats another and obtains energy.
The Food chain is as follows :
Sun
↓
Alfalfa
↓
Rabbit
↓
Coyote
What is DNA. in your own words
Answer: Molecule that stores genetic information in all organisms.
Explanation:
why does styrofoam fall slower than a rock
Answer:
The foam board has a larger gravitational force but it also has a very large air resistance force. The net (total) force on the foam board will give it a smaller acceleration than paper.
Explanation:
The air molecules get knocked away and take some of the kinetic energy away from the object, which makes the object slow down
If Darian contains 3.25 moles of gas in a container with a volume of 60.5 liters and at a temperature of 400 K, what is the pressure inside the container?
PV = nRT
with atm: R = 0.0821 L*atm/(K*mol) with kPa: R =8.31 L*kPa /(K*mole)
Answer:
1.76atm
Explanation:
Using the ideal gas law equation;
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
According to the information provided in this question,
P = ?
V = 60.5 liters
n = 3.25 moles
T = 400 K
R = 0.0821 Latm/molK
Using PV = nRT
P = nRT/V
P = (3.25 × 0.0821 × 400) ÷ 60.5
P = 106.73 ÷ 60.5
P = 1.76atm
Identify Acid-base and conjugate acid-base pair in the following: HCOOH + H20 --> HCOO + H3O+ *
Explanation:
HCOOH (aq) + H2O (l) ⇋ HCOO- (aq) + H3O+ (aq)
acid 1 base 2 base 1 acid 2
How many liters of water would you need to add to 4.36 moles of NaCl to create a 4 M solution?
Explanation:
1 M = 1 mol/L
4.36 mol NaCl ×(1L H20 / 4 mol NaCl) = 1.09 L H20
Answer:
1.09 L of water
Explanation:
4.36 mol NaCl ×(1L of H20 / 4 mol NaCl) = 1.09 L of water
The ____ are a windless zone.
Answer:
sorry I don't know I just came for points
Explanation:
Na+ and P-3 whats the formula and whats the name of it
Answer:
Sodium phosphide is the inorganic compound with the formula Na 3 P. It is a black solid. It is often described as Na + salt of the P 3− anion. Na 3 P is a source of the highly reactive phosphide anion.
Explanation:
How can we use patterns on the periodic table to predict an element’s structure and reactivity?
Answer:
The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.
How do the electron configurations for chlorine explain the steps pls
Answer:
follow the steps
Explanation:
First make a circle and write 17p and 18n below 17 p.Now again make another circle bigger than previous one and make two small circle .Again make another bigger circle and fill it with 8 small circles .Again make another bigger circle than previous ones and make 7 small circles in it .Now write e in small circles .Then write
Chlorine
Atomic number=17
Atomic weight =35
Shell k l m n
no.of e .2 1 × ×
Turtles are cold blooded, meaning they use the Sun to keep warm. A student hypothesizes that his pet turtle will prefer swimming in warm water. He places his turtle on a rock in the middle of the bathtub, and measures how much time the turtle spends off of the rock during a five minute period. He conducts the experiment under four conditions in the bathtub: no water, warm water, cool water , and room temperature water. In this experiment, which is the control group ?
Answer:
Room temperature water
Explanation:
Neither the amount of water nor the temperature of the water has been changed.
About how much evaporation in the water cycle occurs over the ocean?
10 percent
40 percent
86 percent
100 percent
Answer:c
Explanation:
How many moles of oxygen gas are necessary to completely react with 10.6 moles of propane? C3H8(g) + 5 O2(g) --> 3 CO2 (g) + 4 H2O (l)
Answer:
53 moles of oxygen, O₂
Explanation:
The chemical equation for the reaction is presented as follows;
C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O (i)
From the above equation, 5 moles of oxygen, O₂, gas reacts completely with 1 mole of propane gas, C₃H₈
Therefore 10.6 × 5 = 53 moles of oxygen, O₂, will be required to react with 10.6 × 1 mole of propane, C₃H₈
The number of moles of oxygen, O₂, necessary to completely react with 10.6 moles of propane, C₃H₈ is 53 moles of oxygen, O₂
Aqueous aluminum phosphate reacts with solid magnesium to produce solid aluminum and aqueous magnesium phosphate. Write the balanced chemical equation for this chemical reaction using the correct chemical formulas and include conditions (s, l, g, or aq). Put your answer in the box below.
Answer:
2AlPO4(aq) + 3Mg(s) -------> Mg3(PO4)2(aq) + 2Al(s)
Explanation:
The principle of writing balanced chemical reaction equations states that; the number of atoms of each element on the right hand side of the reaction equation must be equal to the number of atoms of the same element on the left hand side of the reaction equation.
The reaction is between aqueous aluminum phosphate reacts and solid magnesium to produce solid aluminum and aqueous magnesium phosphate. The equation is represented as follows;
2AlPO4(aq) + 3Mg(s) -------> Mg3(PO4)2(aq) + 2Al(s)
Define ,'Toxic'.
Ty!!
Answer:
Toxic is a harmful chemical substances which degrades the quality of pure substance .
plz help me get this right and no links
Answer:
Outer planets are significantly colder than other planets! The answer is B.
Explanation:
The main difference between inner and outer planets is that inner planets have a high temperature compared to outer planets.
To make a solution for an experiment, Gunther needs to add 40 g of a solute to 100 g of water. When making the solution at room temperature, he could only add 34 grams before the solute settled out.
What could he do to dissolve the remaining 6 grams of the solute?
Put the solution in an ice bath, dissolve the solute, and let the solution return to room temperature.
Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
Add more water, boil the solution, and dissolve the solute until the some of the water evaporates.
Keep the solution at room temperature, add more water, and dissolve the excess solute.
Answer:
B. Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
Explanation:
What Gunther should do is to heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
A solution is composed of a solute and a solvent. The solubility of a solute in a solvent depends on temperature. Especially for solids, solubility increased when the temperature is increased.
Now, from the question, Gunther needs to add 40 g of a solute to 100 g of water. He added 34 grams before the solute settled out. In this case, he needed to dissolve the remaining 6 grams. What Gunther should do is to to heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
Learn more: https://brainly.com/question/13620168
What do you think could happen with methane gas and CO 2
Answer:
these gases accumulate in the atmosphere and create the heat-reflective layer that keeps the Earth at a livable temperature. These gases form the insulation that keeps the planet warm enough to support life
True or False? In the quantum model of the atom, with its s, p & d orbitals, these circles represent the paths on which the electrons travel as they go around the nucleus
Please i am being timed please help
2. What harmful change/s is/are brought about when a metal reacts or mixes with acids
Answer: hydrogen gas
When metal reacts with acids it produces metal salt and hydrogen gas ( H2 ) . All metals do not react with acids to evolve hydrogen gas . Only those metals react which is more reactive than hydrogen . When metal reacts with acid it forms a salt which is basic in nature and releases hydrogen gas.
Explanation:
Answer:
When metals react with other substances, the gradual wearing away or corrosion of a metal results.This may lead to deterioration of metals
What likely caused these different results?
Answer:
hope help you stay happy
help me get this right no links
2. A dark shadow covers a small part of the Sun's surface.
(HAVE A GOOD DAY!!)
Element 2 is:
A) Cobalt
B)Chlorine
C)Calcium
D)Carbon
Answer:
D: Carbon
Explanation:
Carbon is the sixth element with a total of 6 electrons in the periodic table. Hence the atomic number Z = 6. The ground state electron configuration of carbon is 1s2 2s2 2p2. An excited state electron configuration of carbon is 1s2 2s1 2p3.
Balance the following chemical reaction:
NaF +
Br₂
NaBr +
F2
O A. 3,1,2,1
OB. 1,2,3,4
OC. 2,1,2,1
O D. 1,2,1,2
Answer:
what the freak is thisnenejehey