Answer:
strength and vitality required for sustained physical or mental activity
Explanation:
Answer:
energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
A gas container has an initial temperature of 348 K with an unknown pressure. When the temperature changes to 506 K the pressure is found to be 1.55 atm. What was the initial pressure in atm?
Answer:
1.06 atm
Explanation:
We are given the following variables to work with:
Initial pressure (P1): unknown
Initial temperature (T1): 348 K
Final temperature (T2): 506 K
Final pressure (P2): 1.55 atm
We are asked to find the initial pressure (P1). We want to choose a gas law equation that relates initial pressure and temperature to final pressure and temperature. Gay-Lussac's law does this:
[tex]\frac{P_{1}}{T_1} =\frac{P_{2}}{T_2} \\[/tex]
We can rearrange the law algebraically to solve for [tex]P_{1}[/tex].
[tex]{P_{1}} =\frac{(T_1)(P_{2} )}{T_2} \\[/tex]
Substitute your known variables and solve:
[tex]{P_{1}} =\frac{(348 K)(1.55 atm )}{506 K} \\ = 1.06 atm[/tex]
Given two objects, the object with the _______________ mass will be pulled to the object with the _______________ mass.
Given two objects, the object with the least mass will be pulled to the object with the most mass.
Answer:
the answer is simple the object with the lower mass would be pulled to the object with the bigger mass
Explanation:
hope i helped
Which of the following is a true statement?
A. Water breaking apart rocks by freezing and thawing is an example of physical weathering.
B. Water moving pieces of rock from one place to another is an example of chemical weathering.
C. Glaciers carrying rock from one place to another is an example of chemical weathering.
D. Glaciers carrying rock from one place to another is an example of physical weathering.
Answer:
B. Water moving pieces of rock from one place to another is an example of chemical weathering!
hope it helps
please mark as the brainliest!
What is the chemical formula for oxygen tetrabromide?
(15 POINTS) arrange the conversion factors in order as displayed in the pic
Answer:
3,1,2
Explanation:
3 bc u go get liters
1 because ur going from C3H8 to CO2
2 because ur getting CO2 liters
CAN SOMEONE PLEASE HELP ME?!
Answer:
no
Explanation:
because
why are the first bubbles of oxygen prduced not collected?
Answer:
because I don't know the answers sorry maam
What is the rate of effusion of Xenon (Xe) gas if the rate of Chlorine (Cl) gas escaping
through a fluorescent light fixture is 2.5 L/min?
i really need these solved, it’s asking for half equations!!
Answer:
Net equation: Cu + 2Ag+ ⇒ 2Ag + Cu2+
Explanation:
Cu + 2N03- + 2Ag+ ⇒ 2Ag + 2NO3- + Cu2+
The 2NO3- cancel out since they're spectator ions
∴ Cu + 2Ag+ ⇒ 2Ag + Cu2+
Half equations are:
Cu ⇒ Cu2+
2Ag+ ⇒ 2Ag
Balancing both sides of each equation with electrons will lead back to the Net equation.
Which of the following is a population
Chemistry: Atoms and elements. having trouble figuring out how to find out what element these atoms represent any help will be apreciated.
Answer:
Elements are types of atoms that have a unique number of protons. In fact, from left to right, the periodic table is arranged by the number of protons that each element contains. oms make up matter. An atom is the smallest unit of matter that retains all of the chemical properties of an element.
Explanation:
to find the number of atoms look at the number known as the________. Please help.
Answer:
molar mass or AMU
Explanation:
A 34 kg child has 190 J of kinetic energy after sledding down a hill. What is the child’s velocity in meters per second at the bottom of the hill?
Answer: 3.34 meters
Explanation:
If the kinetic energy formula states that 1/2mv^2= KE then we are solving for v. We already know mass and Joules so the equation becomes
[tex]\frac{1}{2}[/tex](34)[tex]v^{2}[/tex]=190
17v^2=190
v^2=190/17
v=3.34
Solve for V
V=3.34
7
Jacob has a bucket of ice. He covers the bucket with a lid and sets it in the sun. The ice melts into liquid water. How does the mass
of the ice compare with the mass of the water?
OA
The mass of the ice is less than the mass of the water
ОВ.
The mass of the ice is more than the mass of the water
OC.
The mass of the ice is the same as the mass of the water.
OD
There is no way to determine this from the information given.
Answer: (C) the same
Here's what I'm thinkin: Since the bucket has a lid, then no water was evaporated thus the mass wouldn't decrease. Also, Jacob didn't add any substances to the bucket of ice, so the mass wouldn't increase. You know? Sorry if this is wrong, but that's how I figured the answer.
Explanation:
Trust Milky. Milky smart.
Qué sucede al disolver una tableta de ALKA-SELTZER en agua caliente?
Answer:
FREE POINTS CUZ I DON'T UNDERSTAND
Explanation:
Can someone please help with this one question
Which statement compares you tractive forces that hold particles together
Answer:
Metallic and covalent bonds are strongly attractive; hydrogen bonding and Van der Waals forces are weakly attractive.
Explanation:
cause
What are the concentrations of urea
Answer: In general, the non-renal causes of increased plasma/serum urea result in a mild to moderate increase (usually no greater than 10.0 mmol/L (BUN 28 mg/dL). Concentration in patients with renal dysfunction can range from mildly increased to severely increased, depending on severity of disease.
Explanation:
A rock sitting on the surface of the Earth is pushed down deep into the Earth over time and is exposed to tremendous heat and pressure over time. Although the rock does not melt, it does change into a new type of rock.
Answer:
The rock changes into a Metamorphic rock
Explanation:
Usually, metamorphic rocks start out as some other type of rock, either igneous, sedimentary or even a metamorphic rock. The process of transformation is known as Metamorphism.
When a rock sitting on the surface of the earth is pushed down deep into the earth over time and is exposed to tremendous heat and pressure over time and does not melt, it changes into a metamorphic rock.
A metamorphic rock is formed from a combination of factors such as tremendous heat, high pressure, hot fluids rich in minerals which are all found deep down in the earth.
the difference between GDP and GNP
What is a wind turbine used for?
Please help
Answer:
it used to generate mechanical power or electricity
Boiling is an __
process.
Answer:
Boiling is a process whereas evaporation is a process in respect to the speed of the process.
PLLZZZZ HELPPPP IT IS A TIME ASSIGNMENT !!!
Answer:
plato is the answer
Explanation:
that what i think it it is
When NH4SCN is added to a solution of Fe3+ ions, the solution changes from yellow to orange. What is the best explanation for this color change?
Answer:
The iron present in the solution is reduced because of the presence of SCN⁻ ions in solution
Explanation:
The clue in this problem is the color of the solution:
A solution of Fe³⁻ is yellow but when the Fe³⁺ is reduced by an oxidant to Fe²⁺ the solution change to orange color.
The SCN⁻ ion is a reducing agent than, in presence of a substance that can be reducted as Fe³⁺ ion will promote the reaction. That means the best explanation is:
The iron present in the solution is reduced because of the presence of SCN⁻ ions in solutionWhat does the steepness of the line on the graph represent?
Answer:
The steepness of a hill is called a slope. The same goes for the steepness of a line. The slope is defined as the ratio of the vertical change between two points, the rise, to the horizontal change between the same two points, the run.
In a chemical reaction between copper metal and silver nitrate, 12.7 g of copper(II) and 64.5 g of silver nitrate react, and 38.1 g of Silver is produced. 21) Predict the products and write the balanced equation and include the physical state of each. 22) What type of chemical reaction is this? 23) Which is the limiting reactant? You must include the work for this to receive full credit. 24) What mass of excess is used up, and what mass is left over? 25) Calculate the percent yield.
Answer:What should you do if you realize during research that your original theory is wrong
Explanation:
i need help!! i need to make it like 3:2
Answer:
use visual studio code and put in this print{3:2}-1
Explanation:
EASY!!!!! ILL MARK BRAINLIEST!!!!!!!!
why does measured current differ from calculated current
Answer:
No component is perfect. All have tolerances that can vary. If you construct a simple circuit where a 10 volt power supply feeds a 10 ohm resistor, you would expect to measure a current of one ampere. BUT - the wiring has some resistance too. This adds perhaps 0.1 ohms to the circuit. The resistor has a +-5% tolerance. If it is 5% high, it may measure 10.5 ohms. That's a total circuit resistance of 10.6 ohms. The power supply may have a tolerance of +-1%. Suppose it's 1% low. That's an output of 9.9 volts in real life. So you have 9.9 volts dropped across 10.6 ohms. you will measure closer to 0.934 amps instead of 1.000 amps. To make matters worse, most electronic components have a temperature coefficient, that is, their values change with different temperatures. You may get a completely different reading tomorrow if the temperature is different! Finally, with current measurements in particular, you are inserting the ammeter in series with the circuit under test. Ammeters have some inherent resistance too, so by putting the ammeter in the circuit, you are changing the very current you are trying to measure (a little)! Oh yeah, the ammeter has a tolerance too. Its reading may be off a little even if everything else is perfect. Sometimes you have to wonder how we get a decent reading at all. Fortunately the errors are usually fairly small, and not all tolerances are off in the same direction or off the maximum amount. They tend to cancel each other out somewhat. BUT - in rare circumstances everything CAN happen like I said, and the error can be huge.
Explanation:
What is the pOH of a substance when [H+] = 5.4 x 10^-8 M
Answer:
pOH = 6.73
Explanation:
First, calculate pH = -log[H+] = -log(5.4 x 10^-8) = 7.27
pOH + pH = 14, so pOH = 14 - 7.27 = 6.73
2. C5H10O5 + O2 ---> CO2 + H20
A. Single Replacement
B. Double Replacement
C. Decomposition
D. Synthesis
E. Combustion
Answer: E. Combustion
Explanation:
D-ribulose + Dioxygen = Carbon Dioxide + Water
