The effective nuclear charge of a neutral atom aluminum, Al with atomic number 13 is
Answer:
wala hindi ko yan alam ty
Shontal compared some of the properties of a marble to a piece
of wood. She placed a marble and a piece of wood in a bucket filled
with water. Shontal observed the wood floating on top of the water,
but the marble sank to the bottom of the bucket. Which statement
best explains why the marble and piece of wood acted differently in
the water?
Answer:
I can't see your answer choices, but it would be something that related to density of the marble vs. wood.
Explanation:
Density is mass divided by volume. A marble with a greater density than water will sink, and wood with lower density than water will float.
Which statement about the organisms whose fossils are found in the rock is correct?
A.) Organism W existed much before Organism Y.
B.) Organism Y existed over the longest period of time.
C.) Organism Y and Organism U were alive over the same time span.
D.) Organism W existed over a shorter period of time than did Organism X. The table below shows the fossils of organisms found in various layers of an undisturbed rock:
Answer:
a?
Explanation:cause if organism w is a fossil and organism y is a rock the rock is way older than a fossil so a
Answer:
the answer is C
Explanation:
just did the test and Y, and U are in the same layer...so both were alive over the same time span.
If 120 g of potassium chloride are mixed with 100 g of water at 80°C, how much will not dissolve?
Answer:
yes
Explanation:
How many grams of KCl will dissolve in 1 liter of H2O at 50 °C? 5. 58.0 g of K2Cr2O7 is added to 100 g H2O at. 0 °C. With constant stirring, to what temp-.
What is an example of quantity of the resource being used by humans that affected
Answer:
1. Healthy and well educated people contribute to their societies in positive way
2. Malnourished and illiterate people cannot contribute much to their respective societies.
Explanation:
All human body systems works together m. What would happen to someone if one of their systems becomes inefficient?
Answer:
lol this is what you get for stealing my points
Explanation:
Please help me with dis
Answer:
c
Explanation:
I will give any one Brainliest, Thanks, & a 5 rating who can Guess my Top 2 Phobia's.
I will give 1 hint for each though...
1st phobia hint is we creep & crawl everywhere we may be small but some people get scared.
2nd phobia hint is things that life is gone and no longer breathes
Answer:
scared of bugs and dead things, or death itself?
Answer:
scared of bugs and dead things, or death itself?
Explanation:
A compound containing 5.93% H and 94.07% O has a molecular mass of 34.02 g/mol determine the empirical and Molecular formula Of this compound
Answer:
7% 4)2(10
Explanation:
beacouse if you divide it you can get the answer
What is a disadvantage for reasons undergoing asexual reproduction
Ms. Gratz went outside last night and saw a full moon as shown:
Which moon phase would she see next?
what would happen if organ systems failed to work together
Answer:
If the organ systems do not work together, then homeostasis is not maintained. If homeostasis is not maintained, the cells of the body will not work properly. As a result, the body will not work properly.Feb 4, 2017
Explanation:
Answer:
If the organ systems do not work together, then homeostasis is not maintained. If homeostasis is not maintained, the cells of the body will not work properly. As a result, the body will not work properly.
Explanation: Edge 2020 :)
1. Define action energy.
Answer:
In physics, action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action. ... Action has dimensions of energy⋅time or momentum⋅length, and its SI unit is joule-second.
Explanation:
hope it helps
Answer:
Action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action.
Explanation:
_________deep-sea currents that occur because of differences between the salinity and temperature characteristics of water masses
Lesson 2.12
Question 3 options:
Density
Thermohaline currents
Salinity
Polar ice caps
Answer:
its B) Thermohaline currents Sorry if its wrong but im sure this could be it
Explanation:These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice.
Thermohaline currents deep-sea currents that occur because of differences between the salinity and temperature characteristics of water masses
What is thermohaline currents?Thermohaline currents is also known as 'the ocean conveyor belt' or 'the global conveyor belt'. It is a part of the large scale ocean circulations.
As the name thermohaline suggested that, 'thermo' means heat and 'haline' refers to the salt content. So, when there is a great difference in the temperature and the salt content deep sea currents occur.
Hence option (2) is correct i.e. thermohaline currents occur due to temperature and salinity difference.
To learn more about thermohaline currents, visit below link:
https://brainly.com/question/21899024
what is the noble gas configuration of V+3
Answer:
Ar 3d3 4s2
Explanation:
Describe a time in the group discussion when you referred to the notes you took, the graphic organizer you filled out, and your position paper.
Answer:
To back up any statements I make.
To refute any errors presented.
Explanation:
During a group discussion, you look at your notes to point out an error or when you want to flesh out a point you made.
What is a group discussion?The term group discussion has to do with learners talking about a topic in a manner ion which each learner takes a turn to explain a portion of the topic.
During a group discussion, you look at your notes to point out an error or when you want to flesh out a point you made.
Learn more about group discussion:https://brainly.com/question/11940982
#SPJ2
When thermal energy is removed from matter, what happens to the molecules?
Answer:
Figure it out.
Explanation:
can someone explain in detail how molar mass, Avogadro's number, and volume are all connected through moles? Im so confused :(
Answer:
See Explanation
Explanation:
By definition, 1 mole is the mass of substance (or, formula mass in grams) containing 1 Avogadro's Number (N₀ = 6.02 x 10²³) of particles. That is ...
1 mole of hydrogen atoms (H) = 1.00794 grams
1 mole of molecular hydrogen (H₂) = 2.01588 grams
1 mole of any substance = 1 formula weight in grams
1 mole = 1 Avogadro's Number (N₀) = 1 formula weight in grams
In the concept of 'gas laws' 1 mole of any (all) gas at STP conditions ( => 0°C & 1 atmosphere pressure) occupies 22.4 Liters & is known as the 'molar volume' of a gas at STP. If the temperature &/or pressure change the volume will not be 22.4 Liters.
For reactions whose coefficients are balanced to the lowest whole number values (i.e., no fractional coefficients) the equation is known as the 'standard reaction' and conditions are assumed to be STP and the coefficients of gas phase components indicate molar volumes. Example ...
Given N₂(g) + 3H₂(g) => 2NH₃(g) is assumed to be at 0°C; 1 Atm pressure.
Molecular Nitrogen = 1 molar volume = 22.4 Liters of N₂(g)
Molecular Hydrogen = 3 molar volumes = 3 x 22.4 Liters of H₂(g) = 67.2 Liters of H₂(g)
Molecular Ammonia = 2 molar volumes = 2 x 22.4 Liters of NH₃(g) = 44.8 Liters of NH₃
C1 Progress quiz: Atomic structure 2 - test
4 The atomic radius of a silicon atom is 1.1 x 10-10 m. Calculate its atomic radius in
nanometres.
O
11 nm
o
0.011 nm
0.11 nm
1.1 nm
Answer:
0.11 nm
Explanation:
1.1 x 10-10 m
The goal is to convert the atomic radius from meters (m) to nanometres (nm). We do this by multiplying the value by 10^9.
This is given as;
[tex]1.1 * 10^{-10} * 10^{9}\\1.1 * 10^{-10 + 9}\\1.1 * 10^{-1}\\0.11[/tex]
Someone help with this question
Answer:
the answer is D the dominant over powers the resecive traits
True or False: The amount of water has and will always remain about the same?
Answer:
In the world? I would say no, but at the same time there are a lot of variables to consider in this. But I'd say no. Just my opinion.
Explanation
Answer:
False the amount of water on earth has decreased over the years
Explanation:
2. What is forensic odontology ? Why is this area helpful for investigators?
Explanation:
forensic odontology is the study of dental applications in legal proceedings. which may include bite marks.
it is helpful as it allows for the identification of unknown bodies through dental records.
Answer:
Also called forensic dentists, forensic odontologists are typically called in to: Identify human remains that cannot be identified using face recognition, fingerprints or other means. Identify bodies in mass fatalities, such as plane crashes and natural disasters. This area is helpful for investigators as it helps find more evidence for each case.
What is the specific heat capacity of an unknown metal if 75.00 g of the metal absorbs 418.6J of heat and the temperature rises 25.0°C?
Answer:
The specific heat capacity of the unknown metal is 0.223 [tex]\frac{J}{g*C}[/tex]
Explanation:
Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
There is a direct proportional relationship between heat and temperature. The constant of proportionality depends on the substance that constitutes the body as on its mass, and is the product of the specific heat by the mass of the body. So, the equation that allows calculating heat exchanges is:
Q = c * m * ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case, you know:
Q= 418.6 J c= ? m= 75 g ΔT= 25 CReplacing:
418.6 J= c* 75 g* 25 C
Solving:
[tex]c=\frac{418.6 J}{75 g*25 C}[/tex]
c= 0.223 [tex]\frac{J}{g*C}[/tex]
The specific heat capacity of the unknown metal is 0.223 [tex]\frac{J}{g*C}[/tex]
Calculate:for each object, substitute the values you know into the gravitational potential energy equation to solve for weight. Record each object's weight in the fourth column.
Answere:No sé esto jeje lo siento no soy tonta pero simplemente no sé esto
Explanation:
what is a food chain OR web, and what is it useful for?
Answer:
-
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Food webs can be used to study bottom-up or top-down control of community structure.
Explanation:
Food chains are important because they show the intricate relationships in ecosystems. They can reveal how each organism depends on someone else for survival. Food chains also display what happens when a problem occurs and a producer or consumer is lost.
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3.3 mol Fe(OH)3 and 6.3 mole H2SO4react according to the equation 2Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 6H2O.
If the limiting reactant is Fe(OH)3, determine the amount of excess reactant that remains. Answer in units of mol.
Answer and Explanation:
2 mol of Fe(OH)3 produces 1 mol of Fe2(SO4)3 then 2.1 mol of Fe(OH)3 will produce (1)/(2) x 2.01 = 1.05 mol of Fe2(SO4)3 amount of H2O = (6)/(2) * 2.01 = 6.03 mol HO2
What causes heat or the transfer of energy from one object to another
Answer:
The answer is kinetic energy
1. A sample of naproxen has 6.022x10^23 naproxen molecules. How many moles is this?
Answer:
0.99997661 moles
Explanation:
Answer:
ysys7sbssiej hsbed hdbd hdbd
Need help with the balancing one
is lime flavor ionic or covalent
Answer:Calcium carbonate (CaCO3), essentially, is an ionic compound having the bivalent calcium and carbonate ions. But the carbonate anion is a polyatomic species. The carbon atom is bonded to all the three oxygen atoms by covalent bonds - two carbon-oxygen single bonds and one carbon-oxygen double bond.
Explanation:So it's ionic hope this helps u. Btw may i have brainlist plz.