True.
The Mass Undergoes change only in ( Solid state to liquid state ) Ice Cube to Water .
Mass changes from mg to litre.
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The amount of energy required to separate 1 mole of ions in a crystalline solid into separate gaseous ions is called _____ energy. This energy provides a measure of the strength of a(n) _____ bond, since the stronger the bond, the _____ the amount of energy required to break it.
Answer: A) Are you asking for the production of "ions" from a solid? Or are you asking for the formation of gases. For gases, this is called "energy of vaporization."
B) "Lattice," I am guessing.
C) Greater
Explanation: Most molecules enjoy their existance as solids (not all) due to the intermolecular forces that attract the molecules to each other. These are largely hydrogen and ionic bonds. Hydrophobic compounds don't always share this enthusiam to stick together. Gasoline is happy to leave it's relatives behind and it's Up, Up, and Away.
Suppose you mix red-tinted oil (density = 0.90 g/mL) with a liter of blue-tinted seawater (density =
1.025 g/mL). After sealing the container, you shake the mixture and then let it settle. What do you
see? Why?
The oil will separate from the seawater when the the mixture is left to settle.
A mixture is a combination of two or more substances that are not chemically combined together.
The red-tinted oil and blue-tinted seawater represents a mixture since the two substances do not combine chemically.
When the oil and seawater are mixed and the mixture is agitated, the oil appears to be all mixed up with the seawater.
After a while, the oil separates from the seawater and floats on top of the seawater because oil is less dense than seawater.
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10) Convert 0.075 km to mm.
hi <3
for this conversion, you need to multiply by 10^6
thus, your answer would be 75000 mm
hope this helps :)
A cubic centimeter is equal in volume to a _____.
liter
milliliter
deciliter
gram
Answer:
milliliter
Explanation:
Answer:
B milliliter
Explanation:
Express the following quantities in scientific notation. A. 5,453,000m B. 300.8kg C. 0.00563ng D. 0.0120325km E. 34,800s F. 332,080,000cm G. 0.0002385ms H. 0.3048mL
Answer:
uu
Explanation:
uwu 44
The standard scientific notation is expressed as A * 10^n where:
A is an integer between 1 and 10
n is an integer
Given the value 5,453,000, expressing in standard form is expressed as:
5,453,000 = 5.453 * 10⁶ m(Note that the decimal point at the back was shifted backwards 6 times)
B) 300.8kg
In this case, the decimal point will be shifted backwards 2 times to have:
3.008 * 10² kg
C) 0.00563ng
In this case, the decimal point will be shifted to the front 3 times to have:
5.63 * 10⁻³ng
D) For 0.0120325km
In this case, the decimal point will be shifted to the front 2 times to have:
1.203 * 10⁻²km
E) For 34,800s
In this case, the decimal point will be shifted backwards 4 times to have:
3.48 * 10⁴s
F) For 332,080,000cm
In this case, the decimal point will be shifted backwards 8 times to have:
3.32 * 10⁸cm
G) For the value 0.0002385ms
In this case, the decimal point will be shifted to the front 4 times to have:
2.385 * 10⁴ms
H) For the value 0.3048mL
In this case, the decimal point will be shifted to the front 1 time to have:
3.048 * 10¹mL
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A piece of metal has a volume of 30.0 cm and a mass of 252 g . What is its density?
What metal do you think this is?
density = mass/volume
252/30 = 8.4 g/cm3
The metal is likely to be Nichrome
What is Density?
The Density of a material is the mass per unit volume
say the mass is m kg
and the volume is v cm^3
Then the density is
Density = mass/volume
Given data
Mass = 252g gram
volume = 30 cm^3
Hence the density can be calculated as
Density = 252/30
Density = 8.4 g/cm^3
From the value, this corresponds to the density of Brass
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What is the overall charge of the
nucleus?
A. positive
B. negative
C. neutral
Which statement best explains why hydrogen's atomic number is equal to its mass? (1 point)
O Hydrogen is in the first row and the first column of the periodic table.
O Hydrogen has one electron and one proton.
O Hydrogen does not have any neutrons.
O Hydrogen is stable, with two electrons in its outer shell.
We have that The Mass atomic number is equal to its mass number of Hydrogen because it bears no Neutrons .
The Mass atomic number is equal to its mass number of Hydrogen because it bears no Neutrons .The Hydrogen atom is devoid of any neutron.The hydrogen atom is made up of one electron and one proton.
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Answer:
1. A mental can be hammered into thin sheets and nonmetals are brittle
2. C vanadium
3. C silicon
4. B hydrogen does not have neutron
5. B francium has few valence electrons but they are in a higher energy level
annnoymousheyy avatar
6. A.
protons = 31
neutron = 39
electron = 28
7. C isotopes that are naturally occurring and unstable always exist in trace amount
8. C atomic number
9. B electrons move freely in curved paths around the nucleus
10. A low energy alpha particles passing through a field of high mass number particles
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11. C on the right side of the periodic table
12. A nitrogen
13. A fluorine , chlorine , and iodine
14. C an ionic bond is likely because they will want to give away two valence electrons in order to become stable
15. D -2
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16. The change in atomic number from 10 to 11
implies a change from a noble gas to a highly
reactive group 1 element. As a result of this,
reactivity increases. The atomic number of an element tells us the group to which the element belongs in the
periodic table.
annnoymousheyy avatar
An atomic number of 10 shows a filled outermost shell which is characteristic of the noble gases. Hence, as we move from this atomic number of
10 to an atomic number of 11, reactivity increases
positively. Atomic number 11 corresponds to a highly
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17. The periodic table shows a correlation between the strength of the ionic connection and the position of the elements on the table. Because metals are positively charged and non-metals
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are negatively charged, if you start on the left side of the periodic table and work your way right, the ionic charge and radius will gradually decrease and the charge will lessen.
To clarify, oxygen is a nonmetal with a little negative charge, whereas lithium is a metal with a positive charge
Explanation:
Which is mot matter _1. air 2.Bread 3.cold 4.Doll
Answer:
Cold
Explanation:
Cold is not matter.
Answer:
3
Explanation:
cold is not matter it is the absence of heat within matter
All the following process produces hematite except
A roasting of siderite
B oxidation of iron
C oxidation of magnetite
D drying of limonite
E no correct answer
Answer:
D)driying of limonite these is the answer
Nate and Vic are trying to determine the atomic mass of the atom shown below. Nate thinks it has an atomic mass of 11 u, while Vic thinks it has an atomic mass of 6 u. Who is correct and why?
A. Nate is correct. An isotope’s atomic mass is based on the number of protons and neutrons in the nucleus.
B. Vic is correct. An isotope’s atomic mass is based on the number of electrons in the electron cloud.
C. Vic is correct. An isotope’s atomic mass is based on the number of protons in the nucleus.
D. Neither is correct. The atomic mass is based on the number of neutrons in the nucleus. This isotope’s atomic mass is 5 u.
Answer: A is correct. I don't see the "element shown below," but it isn't needed to answer this question.
Explanation: By definition, the atomic mass is based on the sum of protons (1 AMU each) and neutrons (1 AMU each). Electrons are assigned a value of 0 AMU.
Cual es la masa atómica del fósforo si tiene 16 neutrones?
Answer:
nbfuhbcuwcbevbeufvhev
Explanation:
jejfihfirhugv
If zinc has an atomic number of 30 and a mass number of 65 what is the correct number of protons neutrons and electrons ?
Answer:
protons 30
neutrons 35
electrons 30