Answer:
Unbalanced Energy
Explanation:
:p
solid added to liquid and the solid floats down to bottom of container physical or chemical change?
Answer:
Physical change
Explanation:
what is the density of a liquid is 67.1 mL of liquid weighs 55.221 g
Answer:
0.82 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question we have
[tex]density = \frac{55.221}{67.1} \\ = 0.822965...[/tex]
We have the final answer as
0.82 g/mLHope this helps you
Energy that is stored due to a shape is called
energy
What is the mass in grams of 5.90 mol C3H18?
673 g
0.0512 g
19.4 g
389 g
3.55 x 1024
Answer:
319
Explanation:
The molecular mass of C3H18 can be found by adding up the molecular weights of carbon and hydrogen so, (12.01 x 3) For Carbon and (1.008x18) for hydrogen. You will find it is 54.174g/mol.
To find grams muliply g/mol by mols so 5.9 x 54.174= 319 i didnt see any errors with my math so maybe you clicked 8 by accident but i may just be wrong
Can someone please help me with this asap, it’s due today please help me
Answer:
lol I hate chemical but let me give some advice
Explanation:
Please go on Khan Academy or look at your notes and I promise you can figure out! Seriously, I am trying to be helpful not like the annoying teacher that says "figure it out"
3. What is an isotope?
Answer:
one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behaviour but with different atomic masses and physical properties
Explanation:
Answer:
what is an isotope? isotopes are versions of the same element. They have the same number of protons and electrons as the element but different mass numbers and number of neutrons.
Explanation:
hope this helps! :)
Non-red hair is dominant. And Red hair is recessive. What are Josh's genotype and phenotype?
Phenotype = Non-red
Genotype = depends on what genes you are using
Atoms acquire the stability of a noble gas by losing electrons
Answer:Atoms acquire the stable electron structure of a noble gas by losing electrons. An atom of an element in Group 1A has seven valence electrons. Among Group 1A and 2A elements, the group number is equal to the number of valence electrons in an atom of that element.
Explanation: Hope this help have an wonderful day and stay safe! :D
The movement of an object toward earth Soley because of gravity is called
Answer:constant acceleration. A steady change in velocity.
Explanation:
balanced equation for solid magnesium oxide
Answer:
Mg + O2 → MgO
Explanation:
How does the idea of a neutron help address the puzzles about the protons in the nucleus and the mass of atoms?
Answer:
a
Explanation:
find the mass in 3.8 moles of magnesium chloride
Explanation:
34.31+35.45(2)=
27.31+70.90=
95.21g/mol
The mass of an object on the Moon would have _______________ mass if it was moved to Earth.
would it be -
A~ less
B~more
or C~the same
Answer:
I think its A. Because space has no gravity..
Explanation:
5. (03.01 LC)
Which of the following is matter in its liquid form?(2 points)
Animals
Plants
Rain
Sunlight
Answer:
rain
Explanation:
rain drops are water and water us a liquid
which characteristic of nuclear fusion makes it hazardous?
A. it produces new elements from existing elements
B. it only happens in the sun and other stars
C. it destroys all the atomic nuclei that go through the process
D. it releases enough energy to cause great damage to buildings
im leaning towards B but possibly C
Answer: it releases enough energy to cause great damage to buildings
The characteristic of nuclear fusion makes it hazardous is option d. it releases enough energy to cause great damage to buildings.
What is nuclear fusion?It is the process where one or more light nuclei should be fused together for producing the heavier nucleus where there is a mass deficiency that should be released like the energy.
Therefore, based on this we can say that the option d is correct.
And, the rest of the options are considered to be wrong.
Learn more about nuclear here; https://brainly.com/question/24432180
The solubility of a gas is 0.14 g/L at STP. Its solubility at 50.°C and the
same pressure can be:
Answer:
0.12 g/L
Explanation:
We first calculate its molar mass M = solubility at STP × molar volume = 0.14 g/L × 22.4 L/mol = 3.14 g/mol
Using the ideal gas law, PV = mRT/M where P = pressure at STP = pressure at 50°C = 1 atm, V = volume of gas, m = mass of gas, R = molar gas constant = 0.082 atm L/mol-K, T = temperature of gas = 50°C = 273 + 50 = 323 K and M =molar mass of gas = 3.14 g/mol
So, PM/RT = m/V = solubility of gas at 50°C
So, PM/RT = 1 atm × 3.14 g/mol/(0.082 atm L/mol-K × 323 K)
= 3.14 atm g/mol ÷ 26.486 atm L/mol
= 0.119 g/L
≅ 0.12 g/L
pls fill in the blanks
65 POINTS ;))
Blank 1 :- Potential Energy
Blank 2 :- Kinetic Energy
Black 3 :- Potential Energy
Blank 4 :- Kinetic Energy
Blank 5 :- Kinetic Energy
Blank 6 :- Potential Energy
_____________________________________Part 2:1) Kinetic Energy
2) Potential Energy
3) Potential Energy
4) Kinetic Energy
5) Kinetic Energy
6) Kinetic and Potential Energy
7) Kinetic and Potential Energy
_____________________________________DEFINITIONS:_____________________________________Mechanical Energy:It is the type of energy possessed due to the motion or position. The objects do the work done by spending this energy. It is either Kinetic Energy or Potential Energy. It is also sometime referred as Total Energy.
Total Energy = Potential Energy + Kinetic Energy_____________________________________Kinetic Energy:The energy possessed by the object due to its motion.
K.E = [tex]\frac{1}{2}mV^2[/tex]_____________________________________Potential Energy:Energy Possessed or conserved by the object due to its height or position is Potential Energy.
P.E = mghwhere,
m is mass
g is acceleration due to gravity
h is height
_____________________________________Best Regards,'Borz'24 grams of iron is added to a graduated
cylinder containing 45 mL of water. The
water level rises to 48 ml. What is the
density of the iron?
Answer:
d = 8 g/mL
Explanation:
Given data:
Mass of metal = 24 g
Volume of eater = 45 mL
Volume of water + metal = 48 mL
Density of iron metal = ?
Solution:
Volume of metal:
Volume of metal = volume of water+ metal - volume of water
Volume of metal = 48 mL - 45 mL
Volume of metal = 3 mL
Density of metal:
d = m/v
d = 24 g/ 3 mL
d = 8 g/mL
Mole Conversion: find the grams in 1.26 x 10^-4 moles of CH3COOH
How many moles of H3PO4 are contained in 150.0 mL of 18.1 M H3PO4?
Answer:
Number of moles = 2.72 mol
Explanation:
Given data:
Number of moles of H₃PO₄ present = ?
Molarity of solution = 18.1 M
Volume of solution = 150.0 mL (150/1000 = 0.15 L)
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles of solute / L of solution
By putting values,
18.1 M = number of moles / 0.15 L
Number of miles = 18.1 M × 0.15 L
Number of moles = 2.72 mol
what will happen if you put carbon and water together plz answer
Answer:
Carbon dioxide reacts with water and produces carbonic acid (green irregular blob) which produces hydrogen ions. These ions bond to the carbonate ions and create a substance (bicarbonate ion not shown) that the organisms can't use.
Explanation:
i looked it up
Answer:
You get carbonated or fizzy water. The process requires that the cold/cool water be saturated with CO2.
Explanation:
hey i got a question for science its " you throw a rock with a mass of 3.6 kg. the ball leaves your hand with a speed of 10 m/s DO NOT INCLUDE J IN THE ANSWER
it is 3.9 i know tgis because you throw a rock with a mass of 3.6 kg. the ball leaves your hand with a speed of 10
If a force of 1.4N is applied to a block with a mass of 7kg, what is the acceleration of the block in meters per second squared?
Answer:
0.2 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{1.4}{7} = \frac{1}{5} \\ [/tex]
We have the final answer as
0.2 m/s²Hope this helps you
8,394m2 for 7kg with force 1.4
-
PLEASE HELP ME ASAPPP PLS
31. Which compound contains an alkaline earth metal and a halogen?
Cas
RbC1
b. Rhys
d. CaCl,
a.
c.
The compound which contains an alkaline earth metal and a halogen is CaCl₂.
What is a compound ?Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.
Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:
1)Molecular compounds where in atoms are joined by covalent bonds.
2) ionic compounds where atoms are joined by ionic bond.
3)Inter-metallic compounds where atoms are held by metallic bonds
4) co-ordination complexes where atoms are held by co-ordinate bonds.
They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.
Learn more about compound,here:
https://brainly.com/question/13516179
#SPJ6
How many moles of oxygen are needed in 100g of water
About 6.25 moles of oxygen.
write all the physical differences between metals and non-metals
Answer:
Metals shows the property of malleability while non-metals are non-malleable. Metals are generally those substances that have a shiny surface and thus are lustrous. Whereas non-metals have non-shiny appearance and thus falls under the category of non-lustrous substances.
The literature value for the Ksp of Ca(OH)2 at 25°C is 4.68 × 10-6. How does the value you determined in the lab compare with this result? Explain what may have caused your result to differ from this value. (Clearly explain what may have happened. Should you have obtained the literature value? Clearly explain how this could have happened?)
The solubility equilibrium is the constant for the solid solute that gets dissolved in an aqueous solution. The experimental value is higher than the literature value.
What is solubility equilibrium?Solubility or the equilibrium constant (Ksp) is the level at which the solute gets dissolved in a solution and depicts the solubility of the solute.
The percentage error is calculated as:
[tex]\dfrac{(4.50 \times 10^{-3} - 4.68 \times 10^{-6}) \times 100}{4.50\times 10^{-3}} = 99.90\%[/tex]
The higher dilution or unsaturated calcium hydroxide may be the reason for the error and increased solubility of the solute.
Therefore, the experimental is higher than the theoretical value.
Learn more about solubility equilibrium here:
https://brainly.com/question/15241577
2. Does sexual or asexual reproduction produces MORE diversity in offspring?
Answer:
sexual
Explanation:
During asexual reproduction, an organism splits into two separate organisms making them look the same.
An organism that was produced from sexual reproduction can have a number of combinations from both parent. For example if your mm had green eyes and your dad had brown eyes, you could either have brown, green, or hazel eyes. Or you could be a rare person that has one brown eye and one green eye... but like I said, that's rare in a person
Why is a map considered a model?
Answer:
Every map is a representation of reality, thus a model in the broadest sense. Sometimes mapping is distinguished from modelling by stating that mapping is a simple representation of reality, while modelling is trying to cover more complexity in reality.
Explanation:
explain why it is appropriate to group a polyatomic ion in parentheses in a chemical formula, if more than one of that ion is present in the formula
Answer:
See explanation
Explanation:
It is commonplace to put polyatomic ions in parenthesis when they are more than one in a compound. A typical example here is calcium phosphate- Ca3(PO4)2.
When a compound contains more than a single polyatomic ion of the same type,a parentheses is placed around the formula of that ion then a subscript is used to indicate how many of that particular ion are in the compound.
