Answers
Answer:
Explanation:
i think it is the last one. hope it is correct
Related Questions
what is chemicle reaction
Answers
Answer:
a process that involves rearrangement of the molecular or ionic structure of a substance as distinct from a change in physical form or a nuclear reaction
Explanation:
please mark brainlest
19. Which of the following is NOT a function of proteins?
a. provides structural support for cells
b. long term energy storage
c. speeds up reactions
d. movement and transportation
Answers
What is the vertex of the parabola in the graph?
1
19
6
4
2
X
-6
-2
-2
-4
Answers
Answer:
(-3, -4)
Explanation:
The vertex is the point/dot that is in the middle of the graph. Imagine a vertical invisible line splitting the U in half, equal parts.
The molar mass of an element is numerically equal to:.
Answers
Answer:
the molar mass of an element is numerically equal to atomic mass in grams-
why stone is not a combustable and insolouble in water
Answers
Answer:
Stone does not have organic matter in it to burn in presence of air. Hence, it is a non combustible.
Rocks are quite bundled up together. Hence, they are very difficult to get mixed together.
Answer:
because stone is not have any holes to in the heat inside the stone and the water is dont have oxygen thats why the fire is not allowed to water
you need the heat oxygen and fuel to made a fire
Is SO2 a ionic bond?
Answers
Answer:
Explanation:
So ,SO2 molecules are covalent. ... Covalent is two non-metals sharing electrons while Ionic is a metal and a nonmetal where one takes an electron and changes both of the elements charges for example Nitrogen and Oxygen would be covalent while Iron and Oxygen would be Ionic. So ,SO2 molecules are covalent.
What is the number of neutrons in silicon-30
Answers
Answer:
16 neutrons
Explanation:
A metal object has a density of 4 g/ml and is placed in a graduated cylinder
with 400 ml of water. The water rises to 416 ml. What is the mass of the
metal object?
Make sure to include the correct unit for your answer.
Answers
Answer:
Mass of metal = 64 g
Explanation:
Given data:
Density of metal = 4 g/mL
Volume of water = 400 mL
Volume of water + metal = 416 mL
Mass of metal = ?
Solution:
First of all we will calculate the volume of metal
Volume of metal = (Volume of water + metal) - volume of water
Volume of metal = 416 mL - 400 mL
Volume of metal = 16 mL
Mass of metal:
d = m/v
4 g/mL = m/ 16 mL
m = 4 g/mL ×16 mL
m = 64 g
Can someone help me with 14-16 fill in the blank
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15.inference
16-invention
ay tone, if dis molten material pourin from da trade towa is aluminum, den how come dey ain't silva nor like a watery liquid?
Answers
Answer:
can you please type english?Explanation:
how many molecules of nitrogen dioxide are there in 2.00 moles of nitrogen dioxide ? Show steps please!
Answers
Answer:
2 moles of NO₂ contain 12.044 × 10²³ molecules of NO₂
Explanation:
Given data:
Number of moles of NO₂ = 2.00 mol
Number of molecules of NO₂ = ?
Solution:
It will be solve through Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ molecules
2.00 mole NO₂ × 6.022 × 10²³ molecules of NO₂ / 1 mol of NO₂
12.044 × 10²³ molecules of NO₂
Thus, 2 moles of NO₂ contain 12.044 × 10²³ molecules of NO₂ .
Define pure substance and give an example
Answers
In the more general sense, a pure substance is any homogeneous mixture. That is, it is matter that appears uniform in appearance and composition, no matter how small the sample size. Examples of pure substances include iron, steel, and water. Air is a homogeneous mixture that is often considered to be a pure substance. (got the answer from google hehe)
what is the percent composition of sulfur in FeSO4
Answers
Answer:
36.8%
Explanation:
Ferrous sulfate has the composition 36.8% Fe, 21.1% S and 42.1% O.
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How do invertebrates affect the oxygen levels of compost and soil?.
Answers
Invertebrates affect the oxygen levels of compost and soil by reducing it.
How respiration works?Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.
Every living organism undergoes the process of cellular respiration and make use of oxygen molecules in the process.
This means that invertebrates will make use of the oxygen gas present in compost and the soil for respiration, hereby reducing it.
Learn more about respiration at: https://brainly.com/question/480297
Answer: Burrows create spaces for oxygen to flow through the soil.
Explanation:
I just took the test
chemical reactions amplify 1.1 pre assessment
Answers
Chemical reactions are the various types of permanent changes which occur in substances and which produce new substances .
What are chemical reactions?Chemical reactions are changes which occur in the arrangement of atoms in a substance resulting in the formation of new substances.
There are many types of chemical reactions such as:
combination reactionsdisplacement reactionsdecomposition reactionsoxidation reactionsdouble displacement reactionsThe various types of chemical reactions that occur contribute to the numerous compounds and substance in existence today.
Learn more about chemical reactions at: https://brainly.com/question/26018275
Which elements can be found in SiCl4?
O sulfur and chlorine
O silicon and chloride
sulfur and chloride
silicon and chlorine
Answers
how many grams of ice can be melted with 15 j of heat
Answers
Answer: A 15-gram ice cube absorbs 5000 j of heat as it melts
Explanation:
How do reactants and products participate in a chemical reaction?
A. One reactant and one product react to form a new reactant and a new product.
B. The reactants are compounds that react to form new compounds (the products).
C. The products react with each other to form new compounds (the reactants).
D. A product is broken down in a chemical reaction to form reactants.
Answers
Answer:
B. The reactants are compounds that react to form new compounds (the products).
Explanation:
yessirski what he said is what im doing. Thanks, guys! #BrainlyPremium
What feature of Earth helps to stabilize our temperatures by keeping a balance of the right amount of the Sun’s light energy reaching us?
Answers
Answer:
The earth-atmosphere energy balance is achieved as the energy received from the Sun balances the energy lost by the Earth back into space. In this way, the Earth maintains a stable average temperature and therefore a stable climate. ... Shortwave radiation reflected back to space by clouds.
Explanation:
hope this helps have a good day
i made it easier to see the answer
Answer:Greenhouse effect
Explanation:
The greenhouse effect causes the atmosphere to retain heat
When sunlight reaches Earth's surface, it can either be reflected back into space or absorbed by Earth. Once absorbed, the planet releases some of the energy back into the atmosphere as heat (also called infrared radiation).
The change in the free energy of a reaction(ΔG) is equal to
1. TΔH - ΔS
2. TΔH + ΔS
3. ΔH - TΔS
4. ΔH + TΔS
Answers
Answer:
The answer is Third one
car travels 67 miles at a speed of 45 mi/hr. How long did it take?
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Answer:
Speed = Distance/time
Let's take 't' to be the time
45 = 67/t
45t = 67
t = 67/45
t = 1.48
PLEASE ANSWER NOW!!!
A train travels 200 miles at an average speed of 50 miles per hour. How long does it take the train to travel this distance?
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Answer:
The answer is 100 m/p/h because you divide the total 200 miles and the 50 speed and you get about 100 m/p/h
Explanation:
Explain all of the conversations of kinetic and potential energy from point A to D.
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Potential energy (PE)= mass• gravitational acceleration • hight
KE depends on the velocity and PE on the hight.
The picture is not clear so I will assume that at point (A) the velocity = 0
So there is no KE , all the energy in the PE form
At point (B), the hight is not = 0 so there is PE. Also the object will have a velocity so there is KE
Similarly with c and d
Hope this helps.
HELP ASAPP WILL MARK BRAINLIST
Matter can be measured in many ways for specific purposes. Which measurement depends on the force of gravity and is not a reliable measurement?
A. Mass
B. Weight
C. Volume
D. Temperature
Answers
Answer:
A. Mass
Explanation:
Mass because ,mass is not a reliable measurement unlike the other ones.
BALANCE THE EQUATION PLEASE 50 POINTS
Answers
Answer:
2C3H8S +13O2 =6CO2+8H20+2SO3
Answer:
ningwa answered it
Explanation:
get from (4,1) to (2,9) go up 8 and over 2 left (-2) - (4 - 2, 1 + 8), do this again (2 - 2, 9+8) and end up at (0,17) which is the y how do you change 7x+3y=3 into slope intercept form.
Choose the answer that best describes how Mount Everest and Death Valley differ. Mount Everest is flat, and Death Valley is the highest point on Earth. Mount Everest is the highest point on Earth, and Death Valley is a smaller mountain. Mount Everest is the highest point on Earth, and Death Valley is relatively flat.
Answers
Answer:
Mount Everest is the highest point on Earth, and Death Valley is relatively flat.
Explanation:
Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert. It is one of the hottest places on Earth, along with deserts in the Middle East and the Sahara, Mount Everest is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point.
Answer:
Last one
Explanation:
Why does dry ice scream when pushed onto metal?
Answers
Answer:
i thought you said dry ice cream
what type of plate boundary would form where there is a mountain range present, known earthquake activity, but no trenches present?
continental-continental convergent boundary
divergent boundary undersea
oceanic-oceanic convergent boundary
oceanic-continental convergent boundary
Answers
Answer:
continental-continental convergent boundary
Explanation:
When two continental plates converge, they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.
Answer:
continental-continental convergent boundary
Explanation:
A piece of metal has a mass of 200 g and a volume of 2cm^3. What is its specific gravity?
a) 0.01
b) 2
c) 100
d) 400
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Just like the terrestrial inner planets, which are made of rock and metal, the gas planets have solid surfaces covering mantles and cores.
A. True
B. False
Answers
Answer:
B. False
Explanation:
The gas planets are called so because they are composed of gases and solid materials. Therefore, they cannot have solid surfaces covering mantle and core as they cannot exist.