Answer:
theres no options?
Explanation:
Something that is made out of natural resources for human use is called? Synthetic Resource Natural Resource Materials Living Organisims
Answer:
Natural Resource
Explanation:
A natrual resource is something that was created when Earth was first made. They were intended to fulfill human needs when they needed them. An example of a natural resource can be water, because we will need water to survive.
is pH 6 a weak or strong acid?
Answer:
6 pH is a weak acid
Explanation:
Generally, a strong acid has a pH of about zero to 3.
The pH scale typically ranges from 1 to 14, with lower numbers representing acids, higher numbers, bases. Neutral liquids like water have a pH of 7.
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whoever answers first ill give brainliest! ANSWER QUICK PLS
Mr. B weighs out 22.8 grams of cobalt (II) chloride, then dissolves that CoCl2 in 500 mL of water. What is the concentration of his cobalt (II) chloride solution?
a. 3.51 M CoCl2
b. 0.351 M CoCl2
c. 0.176 M CoCl2
d. 0.0456 M CCl2
thank you so much!
Answer: b
Explanation: had the same question
✨✨What’s 2 similarities and 2 differences between the Earths layers and the atmospheric layers? ✨✨
‼️DONT COPY OFF LINE PLEASE ‼️
Answer:
Differences: Earth's atmosphere has 5 main layers where as atmospheric layers thins out in each higher layer.
Similarities: They both have multiple layers.
Explanation:
Sorry I only have 1 difference and similarity.
⚠️⚠️PLEASE HELPP⚠️⚠️
Describe an every day example of an object that has energy of motion and object that has stored energy
Answer:
Humans
Explanation:
Humans have energy of motion and store energy.
Every object will have any form of energy. For instance, when we are walking we gains a kinetic energy. We use electronic devices where electrical energy is stored and can be converted to mechanical energy to activate any motors.
What is energy transformation?Energy can neither be created nor be destroyed. However it can be transformed to any other forms. Thus, the total energy will conserved always.
We have a lot of example for energy transformation and storage. The energy form stored by virtue of the position of an object is called potential energy. Whereas, when the object starts moving potential energy converts to kinetic energy.
Thus, thermal vibrations of particles, our every day activities all are associated with a kinetic energy. Kinetic energy of each body depends on the mass and velocity of the body. The more the mass and velocity more will be the kinetic energy.
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Jacob walked into a shop to buy cups for his house. He saw the cups shown below. Why does the cup on the right appear yellow? A. The cup absorbs yellow light but reflects all other colors of light. B. The cup reflects yellow light but refracts all other colors of light. C. The cup refracts yellow light but absorbs all other colors of light. D. The cup reflects yellow light but absorbs all other colors of light.
Answer:
D. The cup reflects yellow light but absorbs all other colors of light.
Explanation:
The cup in the shop appears yellow because the cup reflects yellow light but absorbs all colors of light.
Due to the materials the cup is made of, it is able to specifically reflect yellow and absorb other radiation types.
The color we see are products of the part of visible radiations they reflect.
The cup in this instance reflects yellow and absorbs other color.
Which of the following would happen if Earth's moon were half the size that it is now? O The oceans' tidal variations would be smaller because the Moon would exert less gravitational pull on Earth's oceans. O The oceans' tidal variations would be greater because the Moon would exert less gravitational pull on Earth's oceans. O The oceans' tidal variations would be greater because the Moon would exert more gravitational pull on Earth's oceans. The oceans' tidal variations would be smaller because the Moon would exert more gravitational pull on Earth's oceans. & Previous
Answer: A. The oceans‘ tidal would be smaller because the moon would exert less gravitational pull on earths oceans.
Explanation:
i got it right :)
What is the purpose of a catalyst?
Answer:
option c
Explanation:
as catalyst increases the reaction while activation energy is inversely proportional to rate of reaction, so option c is correct
The purpose of a catalyst to lower the activation energy of a reaction.
What is catalyst?A type of chemical that, without becoming consumed by the process, speeding a chemical reaction or reduce the temperature as well as the pressure required to initiate one. The addition of a catalyst to speed up a reaction is known as catalysis.
What is activation energy?The bare minimum additional energy needed by a reactive molecule to transform into a product is considered as activation energy.
The purpose of a catalyst is to lower the activation energy of a reaction.
Therefore, the correct answer will be an option (C).
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protons are one of the heavier pieces of an atom. true or false?
Answer:
true
Explanation:
The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes the air we breathe?
a
element
b
compound
c
mixture
d
none of these
A car left from its initial position at 6 pm. The car arrived at its final position at 11pm. How much time did it take the car to arrive ?
Answer:
5 hours.
Explanation:
Given that,
Initial time, [tex]T_i=6\ pm[/tex]
Final time, [tex]T_f=11\ pm[/tex]
We need to find how much time did it take the car to arrive.
Time = final time-initial time
= 11 pm - 6 pm
= 5
So, it takes 5 hours by car to arrive.
how many atoms are in 7.3 moles of arsenic atoms? 1 mol = 6.02 x 10^23 particles
Answer:
6,9
Explanation:
Newton's first law is demonstrated in what station?
Answer:
hope this helps!
Explanation:
This law states that a still object will stay still unless a force pushes or pulls it. A moving object will stay moving unless a force pushes or pulls it. Gravity and friction are forces that constantly push and pull the "stuff" on earth. So, when we roll a ball, it slowly comes to a stop.
How many moles are 3.21x10^28 moles of N2
Answer:
number of moles =
[tex]53.3 \times 10 {}^{3} mol[/tex]
Explanation:
here's the solution in attachment.
If one mole of an unknown substance is 200.59 g/mole, what is the mass of 0.33 moles of that substance?
Answer: 66.83g
Explanation: (200.59 g/mole = Hg)
0.33 moles = 66.83g
_____ is responsible for bringing gravity into modern science.
Isaac Newton
Galileo Galilei
Albert Einstein
Write chemical name ofNH4Cl, Na2CO3.
Answer:
NH4CI
AMMONIUM CHLORIDE
NA2CO3
SODIUM CARBONATE
A magnet is different from a piece of iron that is not magnetic because
Answer:
Under normal conditions, a magnetic material like iron doesn't behave like a magnet because the domains don't have a preferred direction of alignment. On the other hand, the domains of a magnet (or a magnetized iron) are all aligned in s specific direction.
Explanation:
Why is it important to know the temperature of the water when dealing with ions in
an aqueous solution?
Water does not ionize at higher temperatures.
Water becomes very acidic when at low temperatures.
Temperature affects the concentration of water.
The ionization constant of water is usually given at 25 °C.
Water at a higher temperature will produce more ions than water at a lower temperature.
Answer:
temperature affects the concentration of water
If you are cooking bread, and you weigh the dough before baking and weigh the bread after baking, but they weigh 2 different amounts, how is the law of conservation of mass still being followed?
Answer:
jayfeather friend me
Explanation:
In a toasty kitchen, your dough may proof in as little as an hour (or less!). When the temperatures dip, it can take much longer—upwards of two or even three hours.
HELP! URGENTLY NEEDED! I NEED THIS ANSWER IN 5 MINUTES AND PERSON WHO HELPS GET THE ANSWER RIGHT GETS 25 POINTS!!! PLEASE I AM FAILING THIS CLASS AND NEED SO MUCH HELP!!!!
The coefficient/s will balance the chemical equation CH4 +O2 -------» CO2 + H2O is
a
1, 2, 1, 2
b
2, 1, 1, 2
c
2, 2, 1, 1
d
1, 1, 1, 2
Answer:
hey miss
Explanation:
The coefficients : a. 1,2,1,2
Further explanationGiven
Reaction(unbalanced)
CH4 +O2 -------» CO2 + H2O
Required
The blanced equation
Solution
Give a coefficient
CH4 +aO2 -------» bCO2 + cH2O
Make an equation
C, left=1, right=b⇒b=1
H, left=4, right = 2c⇒2c=4⇒c=2
O, left=2a, right=2b+c⇒2a=2b+c⇒2a=2.1+2⇒a=2
The equation becomes :
CH4 +2O2 -------» CO2 + 2H2O
An 240. mL sample of oxygen at 90.00C and was cooled at constant pressure
until it has a volume of 450.0 mL. What was the final Celsius temperature of this
gas? *
The final temperature : T₂ = 680.625 K
Further explanationGiven
V₁=240 ml
T₁ = 90 + 273 = 363 K
V₂ = 450 ml
Required
The final temperature
Solution
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Input the value :
T₂ = V₂T₁/V₁
T₂ = 450 x 363 / 240
T₂ = 680.625 K
what is haber's process?
Answer:
method for procuring ammonia
Explanation:
In the Haber process, atmospheric nitrogen is converted to ammonia by reacting it with hydrogen (H2)
Please help I will give brainliest
Answer:
Explanation:
c. - vaccine
b. - immunity
d. - phagocyte
f. - b cell
e. - t cells
a. active immunity
pls help 6th grade science
Question 9(Multiple Choice Worth 1 points)
(05.03 LC)
Which of the following stars usually shine with the dimmest of light?
O Dwarfs
O Giants
O Main sequence stars
O Supergiants
True/False: There are about 400 known elements
Answer: false
Explanation:
there are no more then 112 known elements.
Answer:
false
Explanation:
their are only 118 element
research ocean currents and how they relate to heat transfer.
Answer:
The movement of this heat through local and global ocean currents affects the regulation of local weather conditions and temperature extremes, stabilization of global climate patterns, cycling of gases
what volume of 0.20 M NaCl contains 10.0 g
How many molecules are in 10 moles of H2
The number of molecules in one mole of hydrogen gas is 6.02 × 10²³ . The number of molecules in 10 moles of hydrogen gas is then 6.022 ×10²⁴.
What is one mole?Any substance that contains 6.022 × 10²³ number of atoms is called ne mole of that substance. This number is called Avogadro number. Hence, one mole of every elements contains Avogadro number of atoms.
Hydrogen is the first element in periodic table. It is an alkali metal. The number of molecules in one mole of H₂ is equal to Avogadro number. Mass of a molecule with one mole of amount is called its molecular mass.
Number of molecules of H₂ in one mole = 6.02 × 10²³
Then number of molecules in 10 moles is Avogadro number times the number of moles.
= 10 × 6.022 × 10²³ = 6.022 ×10²⁴ molecules
Therefore, 10 moles of H₂ contains 6.022 ×10²⁴molecules..
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