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Related Questions
ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!!
I'LL GIVE 30 POINTS AND A BRAINIEST:)
Answers
Answer: 1, magnesium & mg
2, two energy shells
Explanation:
Many of the lunar craters are due to volcanic eruptions true or false
Answers
Answer:
false
Explanation:
Craters on the Moon are caused by asteroids and meteorites colliding with the lunar surface. The Moon's surface is covered with thousands of craters. ... It also has very little geologic activity (like volcanoes) or weathering (from wind or rain) so craters remain intact from billions of years.
How many chlorine atoms are on the products side of the reaction 2 Li +
MgCl2 → 2 LiCl + Mg?*
Answers
Answer:
2 chlorine atoms on the product side.
A coffee cup calorimeter contains 153.21 g of water at 22.50 °C. A 65.454 g piece of iron is heated to 101.62 °C. The piece of iron is added to the coffee cup caloriemter and the contents reach thermal equilibrium at 25.68 °C. The specific heat capacity of iron is 0.449 Jg·K and the specific heat capacity of water is 4.184 Jg·K. How much heat, , is lost by the piece of iron?
Answers
Answer:
Q = 2232J
Explanation:
In the system, the energy that is lost by the iron is:
Q = S*ΔT*m
Where Q is heat, S is specific heat of iron ΔT is change in temperature and m is mass of the piece of iron.
S = 0.449J/gK
ΔT = 101.62°C - 25.68°C = 75.94°C
m = 65.454g
Q = 0.449J/gK*75.94°C*65.454g
Q = 2232J
Can someone answer this pleasee it’s free 15 points
Answers
have a great day :)
I don’t know
but thank u for the points
I need points hehe
Did you know?
Hawaii is the Widest State in America!!!!!!!
help me please i need help cuz its due today
Answers
Answer:
I believe the answer is a. I hope this helps
________ is defined as average kinetic energy.
A. temperature
B. volume
C. heat
D. pressure
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what describes a property of all elements
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I NEED HELP RN 40 POINTS
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Answer:
B.) Adding a source of carbon dioxide to the water.
Explanation:
I had that question too.
1. Two substances, both solids, start at the same temperature. You transfer
the same amount of energy into both solids, but substance 1 becomes a
liquid before substance 2. Which substance has a stronger molecular
attraction?
A Substance 1
B Substance 2
Please help I will give you Brainlyest
Answers
Answer:
B substance 2
Explanation:
1. Two substances, both solids, start at the same temperature. You transfer
the same amount of energy into both solids, but substance 1 becomes a
liquid before substance 2. Which substance has a stronger molecular
attraction?
A Substance 1
B Substance 2
Please help I will give you Brainlyest
Substance 2 has a stronger molecular attraction.
What are solids?Solid is one of the four fundamental states of matter. The molecules in a solid are closely packed together and contain the least amount of kinetic energy. A solid is characterized by structural rigidity and resistance to a force applied to the surface.
Both solids are supplied with an equal amount of energy. Out of both substances, substance 2 has a stronger molecular attraction due to which it can not easily change into a liquid while substance 1 has a lesser molecular attraction so supplying of few amounts of heat will change substance 1 into a liquid state.
Hence, Substance 2 has a stronger molecular attraction.
To learn more about solids, click here:
https://brainly.com/question/14424882
what should we use in soap making process:-
a) potassium hydroxide
b) sodium hydroxide (lye)
Explain why it should be used
Answers
Sodium hydroxide, with the formula NaOH, is usually used in products as a pH adjuster. It's also used in soap-making to turn fats and oils into soap. You can find sodium hydroxide (also called caustic soda or lye) in its pure form in the cleaning aisle, since it's also really handy for clearing up clogged drains.
help help help plsss
Answers
Answer:
4.58×10^3
3.72×10^7
Explanation:
3.8×10^2 =380
+ 4.2×10^3=4200
= 4580 = 4.58×10^3
The diagram below shows the energy conversions of the Krebs cycle, which is part of cellular respiration. The U-shaped
arrows that show changes for NAD, FAD, and ADP molecules represent energy conversions. From each glucose
molecule, two acetyl-CoA molecules are made for the Krebs cycle.
NADH
NAD+
FADH2
FAD
Acetyl-CoA
СС
COA
COA
Citric Acid
4-carbon
compound
CCCC
co&Co
ADP
ATP
CO2
NADH
NAD+
5-carbon
compound
CCCCC
NAD+
NADH
CO.
How many energy conversions occur when both acetyl-CoA molecules go through the Kerbs cycle
A 5
B 6
C 10
D 12
Answers
Answer:
b
Explanation:
Which of these statements accurately describes monomers?
Monomers are macromolecules.
Monomers contain double bonds.
Monomers are made of repeating units.
Monomers contain bonds between metals.
Answers
Answer:
Monomers contain bonds between metals
Answer:
B: Monomers contain double bonds
Explanation:
I got it right on Edge
What is the amplitude ?
Answers
Answer: The amplitude is a measure of the strength or intensity of the wave
Explanation: when looking at a sound wave, the amplitude will measure the loudness of the sound.
6. Which of the following molecules has a central atom with precisely two unshared
pairs of electrons?
methane, CH4
ammonia, NH3
hydrocyanic acid, HCN
water, H20
CLEAR ALL
Answers
Answer:
water, H20
Explanation:
From the given choices, only water has two unshared or lone pairs of electrons in its central atom.
The formula of water is:
H₂O
H is hydrogen with 1 electron
O is oxygen with 8 electrons and 6 valence electrons
To form the covalent bond, the 6 valence electrons are involved. Two out of the 6 bonds with the two oxygen.
The remaining 4 gives the two lone pairs.
What is the mass in grams of 10 moles of ammonia, NH3?
A.
?
1.7 grams
B.
?
27 grams
C. ?
170 grams
D
?
0.587 grams
Answers
Answer:
C. 170 g.
Explanation:
multiply given moles by the molar mass of ammonia.
