Answer:
The claim is: Therefore Mitosis requires less energy than sexual reproduction does.
Explanation:
Sodium chloride is dissolved in water.
Which ions are present in the electrolyte?
Answer:
Na+
Cl-
H+
OH-
Explanation:
NaCl + H2O -----> Na+. Cl- + H+ OH-
Help me answer these questions
Answer:
3.
a.climate
4.
c.average measurements of temperature and rainfall over many years
What are the standard temperature and pressure conditions enthalpy is usually measured under?
The correct answer is D: 100kPa and 298 K.
The enthalpy of a system is a thermodynamic quantity which can be regarded as the total energy content of the system.
The enthalpy of a system is measured under standard conditions. The standard conditions include;
100kPa298 K1 M (for aqueous solutions)Hence, the standard temperature and pressure conditions enthalpy is usually measured under are 100kPa and 298 K.
https://brainly.com/question/1657608
Use the bond dissociation energies of H2 (435 kJ/mol) and of a typical carbon–carbon bond (347 kJ/mol) to decide which bond is stronger. Explain your reasoning.
Answer:
H2 bond is stronger
Explanation:
In this question, we are trying to make a connection between bond dissociation energy and the strength of a bond.
First of all, we must know that any bond that is quite stable must have a large bond dissociation energy. This means that more energy is supplied in order to cleave the bond.
A high bond dissociation energy actually implies that a bond is of low energy and consequently stable.
What are protons, neutrons, and electrons made of?
Answer:
quarks and gluons
A 20 kg box of rocks is held out over a cliff at a height of 10 m. How much gravitational potential energy does the box of rocks have?
What is the number after an element in a chemical equation called? Example: H2
a. subscript
b. coefficient
c. atom
d. equation
Answer:
the answer to your problem is A.Subscript...BRAINLIEST
CH4 + 202 → CO2 + 2H2O
How many grams of O2 needed to produce 36 grams of H2O?
Answer:
Mass = 64 g
Explanation:
Given data:
Mass of water produced = 36 g
Mass of oxygen needed = ?
Solution:
Chemical equation:
CH₄ + 2O₂ CO₂ + 2H₂O
Number of moles of water produced:
Number of moles = mass/molar mass
Number of moles = 36 g/ 18 g/mol
Number of moles = 2 mol
Now we will compare the moles of water and oxygen.
H₂O : O₂
2 : 2
Mass of oxygen:
Mass = number of moles × molar mass
Mass = 2 mol × 32 g/mol
Mass = 64 g
How many moles of helium are contained in 9.85 x 1023 atoms?
9.85 x 1023 atoms
Answer:
10076.55
Explanation:
PLEASE HELP! this is a science test/quiz I’m pretty sure the answers are on the bottom if not please comment so I can tell you them
Given 7.3 moles of Ethane Gas (C2H6) and Excess Oxygen, how many moles of CO2 would be produced in the following combustion reaction? Round to 1 decimal place. Assume 1 Mole Ethane = 30.07 g of Ethane
2C2H6 + 7O2 --> 4CO2 + 6H2O
Answer:
Explanation: Find moles of product formed when C2H6 is burned in excess oxygen? Mass percent of ethane in a mixture before it goes through combustion with propane. Combust to create water and co2. Using gas stoichiometry find the volume of sulfur burned in excess of oxygen: Gas pressure inside a vessel: 1.60 grams of methane (CH4) is combusted.
6CO2 + 6H2O → C6H12O6 + 602
How many molecules of CO2 are present
Answer:
12 hydrogen + 12 hydrogen = 24 hydrogen
Hydrogen was transferred from sugar and water on the left to water on the right releasing
Explanation:
if you have 3 dozen pennies how many ml of water would they displace
The mass of the displaced fluid can be expressed in terms of the density and its volume, m = ρV. The fluid displaced has a weight W = mg, where g is acceleration due to gravity. Therefore, the weight of the displaced fluid can be expressed as W = ρVg.
Which characteristic is common of cnidarians
A- They live only in the oceans
B- They have four legs
C- They live at the surface of the water
D- They have tentacles
Answer:
it's -C......................
PLEASE ASAP
HELP!!!!!!!!
Answer:
sec explanation: It is because it goes by order sec, min, day, month, and year etc
Answer:
sec
Explanation:
Can someone help?
Apparently you couldn’t see the picture in the previous question. Hopefully it will now.
Answer:
ummm sugar is the answer ;-;
help me please!!!!!!!!!
You’ll get marked as brainlist I think because that’s what happened last time (:
Answer:
both are physical, caused by heating
Explanation:
Is Fire a gas, liquid, or solid...
Answer:
gas
Explanation:
fire is a gas not liquid or soild
The visible light is a short segment of the electromagnetic spectrum.
Yes or No
Answer:
Yes
Explanation:
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view.
someone help pls :,)
Answer:D
Explanation:
Cause I literally just did this
Solve you will get brainliest and23 points
Explain why reactivity increases by linking increase in atomic number, number of shells with the shielding of outer most electron
which statement accurately describe stars
Which of the following is a molecular compound?
F) NO2
G) Ca(NO3)2
H) H2SO4
J) NaOH
Answer: H
Explanation:
Please help me in Q3 it’s not understandable to me
Answer:
A- mixture
B- element
C- compound
Explanation:
A mixture is composed of two or more substances. Since it is not entirely homogeneous throughout, then it can not melt or boil at a fixed temperature.
An element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. This describes substance B.
A pure chemical element has a fixed melting and boiling point.
A compound is composed of one or more chemical elements. A compound may be broken down into its components by certain processes.
Pleassseee Answerrrrr
Light waves can travel through a vacuum (empty space), while sound
waves cannot travel through a vacuum.
True or False
Answer: True
Explanation:
True. Sound does not have the required energy or speed to travel through a vacuum. Light can exist almost anyplace.
Zachary adds 9.7 g to 1.114 g.
How many significant figures should his answer have?
What is wrong with writing the electron configuration of a ground state atom as 1s2 2s2 2p6 3s2 3p6 4s2 4d1?
Answer:
4d - orbital makes the given electronic configuration wrong.
Explanation:
The order of electronic configuration is written as;
1s²
2s² 2p⁶
3s² 3p⁶ 3d¹⁰
4s² 4p⁶ 4d¹⁰ 4f¹⁴
5s² 5p⁶ 5d¹⁰ 5f¹⁴
6s² 6p⁶ 6d¹⁰ 6f¹⁴
7s² 7p⁶ 7d¹⁰ 7f¹⁴
In order of energy level from the lowest to the highest, the configuration of the given atom in ground state can be written as;
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹, when compared to the given configuration, 4d orbital makes the given configuration wrong, because the next orbital after 4s is 3d.
Bonding Story Mini Project
You can choose to show ionic bonding, covalent bonding (polar or nonpolar), or both, but your story must do the following:
1. Explain the type or types of bonding you are showing - this does not need to be explicit, but it needs to be somehow worked into the story.
2. Show at least 2 different bonds forming (e.g. 2 different compounds)
3. Show the valence electrons of the atoms and how they meet the octet rule
