Answer:
Increases
Explanation:
The main reason of increase earth's temperature is the increase of CO2 gas in the air which causes global warming and the ice burgs in the poles are getting melted and it results in the increase of the sea water level.
This is the main our problem in the future.
The reaction of an acid and a base will always produce what kind of salt?
A.
a combination of the cation from the acid and the anion from the base
B.
a combination of the cation from a strong base and the anion from a weak acid
C.
neutral salts from the cation of a strong base and the anion from a weak acid
D.
basic salts from the cation of a strong base and a strong acid
E.
depends on the strength of the acid and the base
Explanation:
E maybe i am not sure or C
ALL THE THINGS YOU SAID ALL THE THINGS YOU SAID RUNING THROUGH MY HEAD RUNNING THROUGH MY HEAD HELPPPP
Answer:
Gamma rays and X-rays
Explanation:
All the things she said
All the things she said
Running through my head
Running through my head
Running through my head
All the things she said
All the things she said
Running through my head
Running through my head
All the things she said
This is not enough
This is not enough
I need help with this ASAP PLEASE
439.3 g CO2
Explanation:
First find the # of moles of CO2 that results from the combustion of 3.327 mol C3H6:
3.227 mol C3H6 × (6 mol CO2/2 mol C3H6)
= 9.981 mol CO2
Use the molar mass of CO2 to determine the # of grams of CO2:
9.981 mol CO2 x (44.01 g CO2/1 mol CO2)
= 439.3 g CO2
which term best described energy stored in batteries and food
Answer:
energy stored is potential.
Explanation:
A 600-ml solution of alcohol contains 350 mL of water. What
is the mass percent of alcohol?
answer options:
41.7 % alcohol solution
71.4 % alcohol solution
2.5 % alcohol solution
40% alcohol solution
To determine the molar mass of an element, one must know the element's
a. number of isotopes.
b average atomic mass
c avogradro constant
d atomic number
Answer:
d
Explanation:
from you know the atomic number it should be easy to find
To determine the molar mass of an element, one must know the element's atomic number. Therefore, option D is correct.
What is the atomic number ?An element's atomic number (Z) is the number of protons in the nucleus of each atom of that element. This means that the number of protons is the feature that distinguishes each element from all others. Elements differ based on their atomic number.
Because the combined masses of protons and neutrons account for nearly all the mass of a given atom, the atomic mass of a single atom can be calculated by adding the total number of protons and neutrons of that particular isotope.
The atomic mass of any element on the periodic table can be used to calculate its molar mass.
Thus, option D is correct.
To learn more about an atomic number, follow the link;
https://brainly.com/question/16858932
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pls help me guys please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please
5) B
6) C
7) B newland, law of octaves
8) A)
Which of the following processes
release energy?
A. Water evaporating
B. Ice melting
C. steam condensing
D. wax melting
What does a nucleus look like
Answer:
Explanation:
The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
5.(08.02 MC)
A 0.680 M Ca(OH)2 solution was prepared by dissolving 55.0 grams of Ca(OH)2 in enough water. What is the total volume of the solution formed? (4 points)
O 1.09 liters
0 1.23 liters
2.01 liters
O 2.18 liters
Answer: 1.09 Liers
Explanation:
I did the problem and got it correct.
Answer:
A. 1.09
Explanation:
I did the Chemistry Exam
Isotopes with unstable nuclei are __1__ and are called __2__. The __3__ of radioisotopes decay to __4__nuclei plus emission of large amounts of __5__ . The radiation may be alpha, __6__, or gamma. __7__ radiation consists of alpha particles (positively charged __8__ nuclei) that are easily stopped by a sheet of paper. Beta radiation is composed of fast-moving particles, which are __9__. Beta radiation is more penetrating than alpha radiation; it is stopped by __10__. __11__ radiation is electromagnetic radiation. Gamma radiation has no __12__ or electrical charge. It is extremely penetrating. __13__ bricks and __14__ reduce the intensity of gamma radiation but do not completely __15__ it.
Answer:
Following are the solution to the given question.
Explanation:
Isotopes are radioactive with unstable nuclei, called radioisotopes.Radioisotopes' cores decay into the stable core, with enormous quantities of radiation emissions.It could be either alpha, beta, or gamma.Alpha radiation is made up of alpha particles, that are easy to halt with such a piece of paper.Beta spread spectrum of quickly shifting, electrical electrons.Beta radiation permeates upwards of alpha radiation; metal foil gets halted.Electromagnetic radiation is gamma energy.There is also no electrical or mass radiation. It's also quite insightful.Lead brick and concrete lessen, but just don't stop, the strength of gamma radiation.Answer:
radioisotopes is the answer.
Explanation:
HELP PLEASE
1. Locations where volcanoes form far from plate boundaries are called
A. islands
B. hot spots
C. divergent zones
explain how lithium atom is positive charge
What is the molar mass of Na2CO3?
60.0 g/mol
O 106.0 g/mol
118.0 g/mol
141.0 g/mol
Answer:
The required molar mass is 106.0 g/mol
Explanation:
We know,
Molar mass of Na = 23 g/mol
Molar mass of C= 12 g/mol
Molar mass of O= 16 g/mol
∴Molar mass of Na2CO3 = {(23 X 2) + 12+ (16 X 3)} g/mol
= (46 + 12 + 48) g/mol
= 106 g/mol
So, the required molar mass is 106.0 g/mol
29.) What charge would you expect from a Group 1 atom when it becomes an ion?
a.) 2-
b.) 2+
c.) 1-
d.) 1+
Answer:
d
Explanation:
It is 1+ because when the periodic table is drawn well into there groups become cations
Suggest a substance that can be used to neutralise sulfuric acid.
answer this please
Sodium Carbonate, Sodium Bicarbonate or Sodium Hydroxide.
How does the overall charge of oxygen of -16 compare to the overall charge of oxygen -17 and oxygen -18?
Answer:
-2
The charge on an oxygen ion is -2. An oxygen atoms contain six electrons in its valence electron shell.
Explanation:
21.) This substance consists of two or more nonmetal elements in a fixed ratio.
a.) element
b.) mixture
c.) molecule
d.) compound
Answer:
Molecule
Explanation:
when two or more than two non-metal elements are combined then it form Molecule.
One of your classmates asks you why an ice cube melts in water. Which of the following
would be your best explanation?
a.) The ice cube transfers energy to the air.
b.) The ice cube transfers energy to the water.
c.) Energy is transferred from the ice to the water and from the water to the ice.
d.) The water transfers energy to the ice cube.
Answer:
the answer is B
Explanation:
the ice puts 8ts cold into the water taking it away from the ice
If a sample of a gas occupies 5.22 L at 235 oC, what will its volume be at 75 oC if the pressure remains the same?
Answer:
1618.2
Explanation:
235+75=310×75=1618.2
Lee and some other students working with Dr. Yung were conducting an experiment and ended up with some confusing results. In the experiment, each student combined sodium and hydrogen chloride, but, as shown in the table below, each student ended up with different results. Lee is trying to determine what happened.
In a few minutes, you will see a video of what happened when Lee combined two substances. Before you watch the video, see if you can predict why each student ended up with different results.
Student's name Starting substances Ending substances
Lee sodium and hydrogen chloride hydrogen and sodium chloride
Vera sodium and hydrogen chloride hydrogen, sodium chloride, and sodium
Domingo sodium and hydrogen chloride hydrogen, sodium chloride, and hydrogen chloride
Why do you think Vera and Domingo ended up with three substances after the chemical reaction while Lee only ended up with two?
Answer:
chung long
Explanation:
cause 3 plus 2 =9
what is the best definition of energy?
A. The capacity to measure heat.
B. The capacity to measure mass
C. The capacity to exert strength
D. The capacity to do work
Answer:
D. the capacity to do work
Explanation:
the basic definition of energy is the ability to do work
propose 3 solutions that address that sources of global warming
Answer:
The correct answer is - reduce carbon emission, decrease deforestation snd increase plantation, use renewable energy.
Explanation:
Global warming is the process that is caused by human activities to increase the temperature of the earth. It increases the heat of the climate of the earth that leads to a negative impact on the environment. Increasing the greenhouse gas emission leads to trapping heat and cause global warming.
The three major solutions are:
1. reduce carbon and greenhouse gases: The main cause of global warming is the emission of greenhouse gases and an increase in carbon in the atmosphere, so reduce these gas emissions by avoiding fossil fuels that release carbon.
2. reduce deforestation and increase the plantation: trees take carbon dioxide from the environment, So prevent them from cutting and planting new trees will help reducing carbon from the environment.
3. Using renewable energy will help them to not depend on fossil fuels or water waste that will help in reducing global warming.
Which structure shows the correct electron arrangement in CC14?
Answer:
second one
Explanation
How GM food are produced?
What is genetic modification (GM) of crops and how is it done? GM is a technology that involves inserting DNA into the genome of an organism. To produce a GM plant, new DNA is transferred into plant cells. Usually, the cells are then grown in tissue culture where they develop into plants.
Answer:
GM is a technology that involves inserting DNA into the genome of an organism. To produce a GM plant, new DNA is transferred into plant cells. Usually, the cells are then grown in tissue culture where they develop into plants. The seeds produced by these plants will inherit the new DNA.
Is all the biomass consumed by a primary consumer, such as a brine shrimp, transferred to the secondary consumer, such as a gull, when the brine shrimp is eaten? For instance, if a brine shrimp eats 10 g of algae in its life before the gull eats it, does the gull get 10 g of biomass when it eats the brine shrimp? Why or why not?
Write the chemical reaction happening in self heating cans …..
[tex]\huge\mathsf{\red{\underline{\underline{Answer}}}}[/tex]
[tex]{\green{\dashrightarrow}}[/tex]Self-heating cans work through an exothermic chemical reaction between two chemicals. Popular combinations are aluminum and silica, calcium oxide and water, and copper sulfate and zinc. When the two substances combine, the reaction produces enough heat to raise the temperature of the can.
Which process is represented by the label a?
Answer:
Sediment to sedimentary rock (and vice versa) is Compactation and Cementation.
Explanation:
This happens via Lithification, which is the compacting of sediments under pressure.
A metal object with mass of 29.0 g is heated to 97.0 °C and then transferred to an insulated container containing 95.8 g of water at 20.5 °C. The water temperature rises and the temperature of the metal object falls until they both reach the same final temperature of 23.7 °C. What is the specific heat of this metal object? Assume that all the heat lost by the metal object is absorbed by the water.
Answer:
0.603J/g°C is the specific heat of the metal object
Explanation:
To solve this question we must know the heat given by the metal is equal to the heat absorbed by the water. The change in heat follows the equation:
Q = m*S*ΔT
Where Q is heat in Joules, m is the mass of the substance, S its specific heat and ΔT change in temperature
The equation to solve the problem is:
m(Object)*S(Object)*ΔT(Object) = m(Water)*S(Water)*ΔT(Water)
Where:
m(Object) = 29.0g
S(Object) = ??
ΔT(Object) = (97.0°C - 23.7°C = 73.3°C)
m(Water) = 95.8g
S(Water) = 4.184J/g°C
ΔT(Water) = (23.7°C - 20.5°C = 3.2°C)
29.0g*S(Object)*73.3°C = 95.8g*4.184J/g°C*3.2°C
S (Object) * 2125.7g°C = 1282.6J
S(Object) = 0.603J/g°C is the specific heat of the metal object
the molar mass of CCI2F2
Answer:
The molar mass and molecular weight of CCI2F2 is 315.8271.
Explanation: