Answer:
3 sometimes 4
Explanation: there are usualy
3 layers of paint but sometime manufacterers add paint protection film to bring the total up to 4
What causes warm air to rise?
a. The fact that it's less dense than cold air.
b. The fact that it weighs more than cold air.
c. The fact that it has higher pressure than cold air.
d. The fact that it's more dense than cold air.
Why does heating an object increases its thermal energy?
Answer:
the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air
Most chemical reactions have what
Answer:
The first one
Explanation:
Hope it helps
Answer:
I think it would be: have starting substances that collide with each other
Explanation:
Two or more reactants interact to create different substances called products.
23. Which element is most likely to be malleable?
a. Bromine b. Radon c. Nickel d. Carbon
A nucleus emits an alpha particle. What happens to the mass
number and the atomic number of that nucleus?
Answer:
the mass number decreases by 4 and the atomic number decreases by 2
What are two ways that convection currents in the oceans distribute the Sun's energy? A. Icebergs are carried from the poles to the equator. B. Warm water is carried from the equator to the poles. C. Living things swim in cool and warm parts of the ocean. D. Nutrient-rich water is brought to the ocean surface
Answer:c
Explanation:
No cap
The answers are in the picture. this us the question, An increase in carbon dioxide production has led to an increase in global temperatures, which is causing glaciers to melt faster. If this trend continues, how will animals living in the polar regions be affected?
Answer:
D
Explanation:
because if there is no land for them they wont survive in only water
The increase in global temperature melts the ice in polar regions. This worsely affects the animals living there. Hence, they will migrate to other areas but this is in fact not possible for their adaptation in other areas and they may subject to extinction.
What is global warming ?Global warming is the rise of temperature of earth surface all over the world. The significant reason for global warming is green house effect. Gases like carbon dioxide, methane gas etc. are intensely absorbing temperature that is radiating back from earth.
Hence, these gases are increasing the atmospheric temperature in earth. Global warming have very serious impacts that going up to the major discussion to solve nowadays.
The melting of polar icebergs and rising of sea level definitely leads to the extinction of animals living in polar region. They cant be adopted to other regions and migrating to other areas does not save them. Hence, they will extinct from earth. Therefore, option d is correct.
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9. Scientists are studying cellular respiration in a jungle ecosystem that has plants,
animals, and decomposers (which consume dead things). Which group or groups of
organisms in the jungle carry out cellular respiration?
plants
animals and decomposers
all organisms in the jungle
animals.
Answer:
all organisms in the jungle
Explanation:
Scientists are studying cellular respiration in a jungle ecosystem that has plants, animals and decomposers, so all organisms in the jungle carry out cellular respiration.
What is cellular respiration?Cellular respiration is a process in which organism use the oxygen molecule for the conversion of their food materials to get the chemical energy by the product of water and carbon dioxide.
This respiration process is done by all living organism like plants, animals, insects, bacteria, etc. to get energy for the other cellular functions. So, in the ecosystem of jungle plants, animals and decomposers all will perform cellular respiration.
Hence, option (c) is correct i.e. all organisms in the jungle.
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Which phase of matter will take the shape of its container?
Answer:
Liquid
Explanation:
All liquids take the shape of the container
Home can use ____to distribute warm air from a sunroom
Answer:
Solarpannels? I honestly don't know I'm just trying to be helpful.
How does energy play a role in different rock types forming? I had this question another time in my test and it's asking the same thing again.
Answer:
Yes
Explanation:
Yes, there are many energy forces that directly affect the formation of rocks and other substances. The Sun itself provides both energies in the form of heat/radiation and magnetic energy. Heat can get so intense when combined with pressure from being so far underground that it causes rocks to melt and become magma, which combines with other minerals and forms new types of rocks when they cool in the future. Magnetic energy helps push and pull the waves and wind on Earth which ultimately break down rocks into sand over the years.
during a heating or cooling process, how are changes in enthalpy and temperature related?
Answer:
answer this and ill answer that
Explanation:
during a heating or cooling process, how are changes in enthalpy and temperature related?
2. The air pressure inside a submarine is 0.56 atm. What would be the pressure in
mmHg?
What is the mass of 7.5 x 10^24 molecules of NaCl?
Answer:
Molar mass of NaCl = 58.44277 g/mol
This compound is also known as Sodium Chloride.
Convert grams NaCl to moles or moles NaCl to grams
Molecular weight calculation:
22.98977 + 35.453
Explanation:
3
Question 6 (2 points)
An increase in the level of carbon dioxide in the atmosphere would result in:
Answer:
Air pollution
Explanation:
Carbon(IV)oxide is sometimes harmful to man but good for plant in other to manufacture their food
A car accelerates from 20 m/s to 40 m/s in 4 seconds. What is the car’s acceleration?
Answer:
40 - 20 = 20
20/4 = 5m/s
The difference in velocity divided by the rate = acceleration.
Someone help please!
Answer:
D
Explanation:
please help with both of these lol
Answer: 1. Unbalanced
2. Atoms cannot be created or destroyed only rearranged
Explanation:
what happens when u mix blood and water
Answer:
Blood and water
Explanation:
FB and were to bond the difference in electronegativity would be
and we would expect the bond to be
ionic covalent, poler covalent)
ASAP quick
What causes Earth’s major wind patterns?
Question 1 options:
Radiant energy from the sun strikes Earth unevenly.
The density of ocean water changed wind patterns
The latitudes of different areas
The Earth is spinning
Answer:
A.
Explanation:
The sun unevenly hits the Earth, causing wind to form and move around the poles; never constant.
Answer:
A is correct i just took the quiz and got it right
Explanation:
b) Why is aluminium extracted using electrolysis and not carbon?
Answer:
Aluminum is more reactive than carbon so it must be extracted from its compounds using electrolysis.
Explanation:
Even though aluminum is more abundant than iron in the Earth's crust, aluminum is more expensive than iron. This is mainly because of the large amounts of electrical energy used in the extraction process.
Which have a mass of 0 amu?
A. Protons
B. Neutrons
C. Electrons
D. Protons and neutrons
E. Protons and electrons
F. Neutrons and electrons
I give Brainliest!
Answer:
c
Explanation:
Answer:
C. electrons. They also have a charge of -1
How many moles are in 3.24 x 1020 particles of lead? (show work plz)
0.000538 mol Pb
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
3.24 × 10²⁰ particles Pb (lead)
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
Set up: [tex]\displaystyle 3.24 \cdot 10^{20} \ particles \ Pb(\frac{1 \ mol \ Pb}{6.022 \cdot 10^{23} \ particles \ Pb})[/tex]Multiply/Divide: [tex]\displaystyle 0.000538 \ mol \ Pb[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
Our final answer is in 3 sig figs, no need to round.
If you roll a bowling ball and a marble at the same
speed, which one has more Kinetic Energy?
Answer:
The marble
Explanation:
Even though they both have kinetic energy, the marble has more since the weight of the bowling ball is heavier, leaving it to stop faster than the marble itself.
march 10
march 3
february 16
february 22
your answer will be March 3
GUYS QUICK HELP!
is a soda pop bottle a invention or an innovation?
Answer:
Invention
Explanation:
!Hope This Helps!
How many moles are there in 17.6g NaOH?
Answer:
The answer is 39.99711. We assume you are converting between grams NaOH and mole. You can view more details on each measurement unit: molecular weight of NaOH or mol This compound is also known as Sodium Hydroxide.
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 0.44moles are there in 17.6g NaOH.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.
Mathematically,
number of moles of NaOH =given mass of NaOH÷ molar mass of NaOH
Molar mass of 1 mole of NaOH= 40 g/mol
mass of NaOH= 17.6g
Substituting all the given values in the above equation, we get
number of moles of NaOH = 17.6g ÷ 40 g/mol
number of moles of NaOH =0.44moles
Therefore, 0.44moles are there in 17.6g NaOH.
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Unbend a paper clip such that
you have
a long, straight piece of metal. Bend one of the initially straight sections
back and forth several times. Does it become easier or harder to bend
the paper clip in the same spot? What happens if you keep bending the
paper clip back and forth?
uz RS nyodag
Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter, causing the metal to stiffen and fracture. This is known as metal fatige. The bending causes that to occur.
What is metal ?A metal is a substance that has a shiny look when freshly processed, polished, or shattered, and conducts electricity and heat rather effectively. Generally speaking, metals are malleable and ductile.
These characteristics are the outcome of the metallic link that exists between the metal's atoms or molecules.
The earth's crust is where most pure metals are found. They are discovered in ores, which are solid materials from which metals and minerals may be extracted. The majority of the planet's iron mass, which makes up over a third of its mass, is located in its core.
Thus, Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter.
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