Answer:
Lead I think is one I'm not completely sure but I know they're similar in some ways
Write Four Facts About COMPOUNDS:
balance
AI(NO3)3 +
H2SO4 →
Al2(SO4)3 +
HNO3
Answer:
2Al(NO3)3 + 3H2SO4 → Al2(SO4)3 + 6HNO3
Explanation:
i just looked up how to balance it, i dont really know how to balance it exactly
Which two organ systems work together to provide cells with oxygen and to remove carbon
dioxide from the body?
(5 Points)
Answer:
Lungs
Explanation: The two organ systems that work together to provide the cells with oxygen and remove carbon dixoide from the body are the lungs.
Circulatory system and Respiratory system work together to provide cells with oxygen and to remove carbon dioxide from the body. So, the correct options are (C) and (D).
What is Respiratory System ?Respiratory system is a biological system which consists of specific organs and structures. It helps to breathe. It consists of lungs, airways, blood vessels and some muscles with work together with lungs are also the part of Respiratory system. It helps to move out the oxygen throughout the body and helps to remove the carbon dioxide from the body.
Functions of Respiratory System:
1. It allows to smell
2. It delivers oxygen to the cell
3. It removes carbon dioxide from the body.
4. It protects the airways from the harmful substance.
The respiratory system has many different parts that work together to help you breathe. It includes:
1.Mouth and nose
2. Sinuses
3. Pharynx (throat)
4. Trachea (Windpipe)
5. Bronchial tubes
6. Lungs
Thus, Circulatory system and Respiratory system work together to provide cells with oxygen and to remove carbon dioxide from the body. So, the correct options are (C) and (D).
Learn more about Respiratory System, here:
https://brainly.com/question/1968554
#SPJ2
I’ve been struggling could someone help ?
Answer:
Telophase
Explanation:
During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
I hope this helps! (If not, I am very sorry!)
0/40
What is the volume of the two red spheres? (Hint: new
volume old volume)
6 ml
2 ml
4 ml
8 ml
Answer:
can you show me a picture of the two spheres thanks!!
The blank is the temperature at which a material changes from a liquid to a gas while the blank is the temperature at which a material changes from a solid to a liquid
Which labels belong in the cells marked X and Y? X: High Y: High X: High Y: Low X: Low Y: High X: Low Y: Low
Answer:
hello your question is incomplete below is the missing part of the question
Keisha makes a table to compare plasmas and solids.
Plasma
Solid
Kinetic energy
X
Density
Y
Which labels belong in the cells marked X and Y? X: High Y: High X: High Y: Low X: Low Y: High X: Low Y: Low
answer : X: High Y:High
Explanation:
The labels that belong in the cells are ; X: High Y:High this because when comparing Plasma and Solids the variables; X and Y have positive correlation hence when X is High, Y will be High as well
Answer:
a
Explanation:
if you needed to produce 2.5 moles of CO2 for your volcano, how much baking soda (NaHCO3) should be used (anwser in grams)
Answer: Help
Explanation:
.
You start with 1 L of CO2 at standard temperature and pressure in a closed container. If you raise the temperature of the gas, the pressure will
Increase
Remain the same
Decrease
Answer:
Increase
Explanation:
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
If the initial temperature and pressure is standard,
Pressure = 1 atm
Temperature = 273.15 K
then we increase the temperature to 400.0 K, The pressure will be,
1 atm / 273.15 K = P₂/400.0K
P₂ = 1 atm × 400.0 K / 273.15 K
P₂ = 400.0 atm. K /273.15 K
P₂ = 1.46 atm
Pressure is also increase from 1 atm to 1.46 atm.
If a reaction vessel initially contains 5 mol S and 10 mil O2, how many moles of S will be in the reaction vessel once the reactants have reacted as much as possible
Answer:
Explanation:
2S + 3O₂ = 2SO₃
2moles 3 moles
2 moles of S react with 3 moles of O₂
5 moles of S will react with 3 x 5 / 2 moles of O₂
= 7.5 moles of O₂ .
O₂ remaining unreacted = 10 - 7.5 = 2.5 moles .
All the moles of S will exhausted in the reaction and 2.5 moles of oxygen will be left .
A gas has a volume of 1.50mL at 1.89atm. What is the volume when the pressure is 2.75atm? What is the name of the gas law used to solve this problem?
Explanation:
.........................:)
The final volume of the gas at the final pressure can be determined using Boyle's law. The volume of the gas at a pressure of 2.75 atm is 1.03 ml.
What is Boyle's law ?Boyle's law states that, at constant temperature, the volume of a gas is inversely proportional to the pressure of the gas.
Hence, PV = a constant.
Let P1 and V1 be the initial pressure and volume and P2 and V2 be the final pressure and volume then we can write it as,
P1 V1 = P2 V2.
Given that, P1 = 1.89 atm
P2 = 2.75 atm
V1 = 1.50 ml
V2 = P1 V1 / P2
V2 = 1.89 atm × 1.50 ml/ 2.75 atm
= 1.03 mL.
Therefore, the volume of the gas at a pressure of 2.75 atm is 1.03 ml.
Find more on Boyle's law:
https://brainly.com/question/1437490
#SPJ2
3.5mL converted to cm
Answer:
3.5 cubic centimeters
Explanation:
3. Roger ran 50 meters to the left, turned around and ran 100 meters to the right, and then turned around once more and ran 10 meters to the left. Determine his total displacement and distance traveled from the starting point.
Answer:
Distance=160 meters, Displacement = 40 meters right
Balance the equation for aluminum burning in oxygen to form aluminum oxide. ____Al + ____O2 ----> Al2o3
Answer:
4Al + 3O2 → 2Al2O3
Explanation:
HELPPP!! ASAP PLEASEEEEEE
15. Name one benefit and two risks of nuclear power (3)
Benefit:
Risk 1:
Risk 2:
Plss anwser all I’m doing a test
Answer:
good: We can reuse the fuel from nuclear energy projects.
bad 1: There is always the threat of an accident when working with nuclear energy
bad 2: Exposure to nuclear materials or uranium can create health problems
Explanation:
Answer:
benefits: lots of energy produced from small amounts of uranium it also does not pollute the air
risks: A nuclear power accident can make an entire region unlivable, have a negative effect on the environment for years to come, kill thousands of people, create a spike of cancer rates within nearby communities, kill off endangered fish populations (depending on their location), destroy local food supplies, etc.
Nuclear energy can also be turned into explosive devices that can be used to create powerful yields Nuclear energy creates harmful waste. Nuclear energy burns cleanly, which is seen as an advantage. It also creates radioactive waste that is toxic to the environment and dangerous to humans. If this waste is not disposed of properly, then the damage it causes may last for hundreds, if not thousands, of years. In the United States, damages that are directly associated with the storage of nuclear waste materials is estimated to be at least $38 billion. Politico reports that the costs could be as high as $65 billion.
Explanation:
Which volume of 4.00 x 10-2 mol/L solution
of barium nitrate, Ba(NO3)2(aq), contains
2.00 x 10-2 mol of nitrate ions?
0.25 L Barium nitrate solution contains 0.02 mol nitrate ions
Further explanationGiven
0.04 M Barium nitrate, Ba(NO₃)₂(aq)
Required
The volume of Barium nitrate
Solution
Ionization of Barium nitrate in 1 L solution :
Ba(NO₃)₂ ⇒ Ba²⁺ + 2NO₃²⁻
mol :
0.04 0.04 0.08
There is 0.08 mol of nitrate ions in 1 L solution
So for 0.02 mol nitrate ions :
= 0.02/0.08 x 1 L
= 0.25 L
use the periodic table to determine the molar mass of each of the following elements. Use the correct number of significant figures. Potassium
Answer: Potassium is 39.10 g/mol
Explanation: The numbers below the element are the molar mass.
Answer: Potassium(K): 39.10 g/mol
Explanation:
how many molecules are in 100 grams of ammonia
Answer:
17.03052 or 17 for a whole number
Explanation:
How many moles are in 1.204 x 10^24 molecules of Bromine
Answer:
2.2876e+24 or 2.2876000000000000000000000000 (same thing)
Explanation:
First we can do the exponents first
When there is an exponent on top of a number, it means that we need to multiply that number by the amount that the exponent says by itself.
10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 = .....
1E24 or 1,000,000,000,000,000,000,000,000
1,000,000,000,000,000,000,000,000 × 1.204 = ......
2.2876e+24 or
2.2876000000000000000000000000
~ 2.2876 r 2.288 or 2.28, or 2.3
Depends on how much you want to round it up to.
2)A container has an unknown quantity of gas at a pressure of 61.6 kPa, a volume of 3.9 liters, and a temperature
of 90 °C, how many moles of gas do I have?
Answer:3
Explanation:
Help me with this pls
Short leg trait would be transmitted to the next generation through????
Answer:
genes I believe???? like genes transmitted from past relatives
Explain the difference between naming an ionic compound and a covalent (molecular) compound.
Answer:
The main difference between the Ionic and Covalent Compounds is the methodology of formation. One of the atoms in the bond shall lose an electron to initiate the bond to form an ionic compound while the Covalent compound is formed by sharing the electrons among the atoms.
Explanation:
can someone help me plz
Apsidal precession—The major axis of Moon's elliptical orbit rotates by one complete revolution once every 8.85 years in the same direction as the Moon's rotation itself.
To reach a decision in a criminal case, jurors must talk to the lawyers. review the evidence. question the witnesses. create final summaries.
Answer:
B. review the evidence
Explanation:
To reach decision in criminal case,jurors must review evidence as it may contain some important information which could help in decision such as investigation of hairs,nails, etc which contain DNA through which decision making would be easy.
What is DNA?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
Learn more about DNA,here:
https://brainly.com/question/28481425
#SPJ5
What happens in an oxidation half-reaction?
ОА. .
Elements gain electrons.
OB.
Elements lose electrons.
Ос. .
Oxygen is added.
OD. Oxygen is lost.
Answer:
Elements lose electrons.
Explanation:
How can moisture in storms from Hawaii reach California?
Answer:
Atmospheric Rivers a.k.a. The pineapple Express
What is the specific heat capacity of copper metal if 25.00 g loses 18 °C, when the metal is placed in 15 g of water and the water temperature rises 2.8 °C?
The specific heat capacity of copper metal : 0.390 J/g °C
Further explanationGiven
25 g metal
Δt metal = 18°C
15 g water
Δt water = 2.8 °C
Required
The specific heat capacity of copper metal
Solution
Q out = Q in
Q releases by metal = Q absorbed by water
m.c.Δt metal = m.c.Δt water(c water = 4.184 J/g °C)
25 x c x 18 = 15 x 4.18 x 2.8
c = 0.390 J/g °C
Convection currents are driven by differences in?
•Mass
•Volume
•Density
•Weight
Answer:
Density
Explanation:
The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume
Answer: Density
Explanation: Convection usually happens when an object heats up, which causes its density to change, such as a lava lamp.
When the wax in a lava lamp heats up, the wax's density decreases due to the energy from the heat, causing it to rise in the liquid to the top, where it cools down and becomes more dense, then falls back to the bottom.
