Answer:
A mixture is composed of two or more elements or compounds in a non-fixed ratio, which means you can vary the amount of substance in a mixture. A compound is composed of two or more elements in a fixed ratio, so you cannot vary the amount of each element in a compound
Answer:
mixture retains property of combing substances while compound has new properties that are different from combing elements...
can be separated by physical means whereas compounds can be separated by chemical or electrochemical methods
Fill in the blanks. In this phase, the particles are still in contact, but now move freely past each other. Heating a liquid sample will result in the particles having---- kinetic energy and the temperature of the liquid will ------- until it reaches the point at which there is another phase change, this time to a ------- .
Explain why the metals conduct electricity.
Write in your own words.
Please don't copy-paste from the internet.
Answer:
Metals conduct electricity because they have free Electrons in them which helps the current to move eaisily
1) Write the symbol and charge for each individual ion
2) Balance the charge so that they equal to zero
3)Write the formula based on how many of each ion you used in step 2
11) Beryllium and Phosphorus
12) cesium and Sulfur
13) Lithium and phosphorus
14) fluorine and rubidium
15) Francium and oxygen
Answer:
I'm pretty sure these are correct
11) Be 2+ and P 3- Formula is Be3P2
12) Cs 1+ and S 2- Formula: Cs2S
13) Li 1+ and P 3- Formula: Li3P
14) Rb 1+ and F 1- Formula: RbF
15) Fr 1+ and O 2- Formula: Fr2O
Explanation:
You do the criss-cross method where the charge on one ion becomes the amount on the second
The Law of Superposition states
Hi people senko-San is best wifu change my mind
Answer:dude what are you doing here?
Explanation:also i don’t know if I can lol
Solid potassium chlorate breaks into potassium chloride and oxygen gas when heated up to high temperature. This is an example of a/an _______ reaction.
Answer:
es correcto bro claro eres un crak
Answer:
Decomposition Reaction
Explanation:
You can determine the type of reaction by writing out a balanced equation.
Solid Potassium Chlorate: KClO3
Potassium Chloride: KCl
Oxygen Gas: O2
Balanced Equation: 2KClO3 -> 2KCl + 3O2
By definition, a decomposition reaction is when a single substance decomposes into two more simpler substances. AB -> A + B
Because the solid potassium chlorate is breaking into two substances, potassium chloride and oxygen gas, it is a decomposition reaction.
28 grams of Al react with 30 Oxygen gas (O2) to produce Al Oxide (Al2O3). How many grams of Al Oxide will be produced
Answer:
58
Explanation:
Due to conservation of energy, the sum of the reactants = the sum of the products. So 28 + 30 = 58g
How many valence electrons does Oxygen have:
a) 3
b) 5
c) 13
Answer:
it has 6?
Explanation:
The answer should be 6
Why are the elements in group VIIIA unreactive?
They are all gases.
They have an even number of electrons in their outer shell.
They have a full outer shell of electrons.
They each have a stable nucleus.
The human body has several major systems. Most body systems have multiple functions. Which of the following is NOT a major function of the musculoskeletal system?
A turning food into energy
B helping the lungs take in air
C helping the stomach digest food
D moving the bones of the skeleton
Answer:D
Explanation:
i got it right LOL
Among the given options, the one which is not a major function of musculoskeletal system is helping the lungs take in air. All others including, energy, digestion, movement of bones etc. are its function.
What are the functions of musculoskeletal system ?The musculoskeletal system in human body is composed of muscles and bones. The bones in our body are wrapped by the muscles. Muscles helps for the smooth movement of bones.
Muscles convert the chemical energy from food into kinetic energy and use it for the movement of muscles and bones. Muscles contraction needs intake of energy.
The contraction and relaxation of smooth muscles helps for the easy movement of food through the digestive track. Musculoskeletal system also helps for the movement of other organ system. Hence, option b is not the major function of this organ system.
Find more on musculoskeletal system :
https://brainly.com/question/13837035
#SPJ6
What is the boiling point for butane?
Answer:
30.2°F
Explanation:
Butane, the liquid that can be seen inside a transparent lighter, boils at a temperature slightly under the point at which water freezes. So why doesn't the butane in the lighter boil? Butane does indeed boil at about a degree below 32 degrees Fahrenheit, but this is true only at normal atmospheric pressure. (:
can someone please explain this i will give brainliest
AHHH I need help ASAP what does TAILS stand for in science??
What are Rhodium isotopes used for?
Answer:
Rhodium is used to make electrical contacts, as jewelry and in catalytic converters, but is most frequently used as an alloying agent in other materials, such as platinum and palladium. These alloys are used to make such things as furnace coils, electrodes for aircraft spark plugs and laboratory crucibles.
Explanation:
how many moles of oxygen gas are produced in the decomposition of 5.00g of potassium chlorate?
Given: KClO3= O2+KCl
Answer:
0.0612 moles of O2 produced
Explanation:
First we convert from grams of Potassium Chlorate to moles..
Amu = 122.5
5.00g / 122.5 g = 0.0408163265 moles of Potassium Chlorate
Now we need to use the chemical equation to find the ratio of Potassium Chlorate to Oxygen... But first, we need to balance it
Original Chemical Equation : KClO3 = O2 + KCl
Balanced Chemical Equation : 2KClO3 = 3O2 + 2KCl
Now we will use the balanced chemical equation to find the ratio of Potassium Chlorate to oxygen (in order to convert to moles of oxygen for our answer)
We can see that for every 2 moles of Potassium Chlorate that are decomposing, we have 3 moles of oxygen gas produced.
So, we will set up our conversion factor like this:
0.0408163265 moles KClO3 * 3 moles Oxygen
-------------------------
2 moles KClO3
When we solve for this, we see that there are 0.0612244898 moles of O2 produced, or 0.0612 moles of O2 produced
Which situation is does NOT occur during a chemical reaction?
bonds are formed
bonds are broken
mass is conserved
atoms are destroyed
Two atoms of Nh3 reacts with one N2 how many moles of Nh3 reacts with one 2.00 mole of N2
Explanation:
there are four (4)mole of Nh3 that react with N2
the ____metals are in the first column. each of them has full shells, plus one extra electron sitting in a new, outer shell
A) Alkali
B) Alkali Earth
C) Arthropod
Answer:
The answer is A.
Explanation:
In periodic table, group 1 (1st column) are Alkali metals and group 2 (2nd column) are Alkali Earth metals.
Does anybody know how to find the theoretical yield? you can just do 1 equation
Answer:
its the first part in mass of sodium
Explanation:
:)
Which three phenomena occur during a double slit experiment and support the wave model of light?
A-light bends around the edges of the slit.
B-light passes straight through the slit.
C-dark areas appear on the screen.
D-bright areas appear on the screen.
THERE ARE 3 ANSWERS
This is worth 100 points btw.
Answer:
Option A, A-light bends around the edges of the slit.
Which of the following examples is a chemical property?
Answer:
Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2).
Explanation:
Why is salad dressing a solution?
Explanation:
A prime illustration of sour salad dressing formulas and suspension. Vinegar is also an acetic acid product which is dispersed in water, so we can't even see molecules in the oil. The removal throughout the liquid phase to make a solution.
paano mag ka jowa? any suggestions?
Well just wait for the right time to come, Because if you wait for the right time, you're gonna find someone who you really want- I'm bad at understanding tagalog
Answer:
Time will come
Explanation:
God has a plan for you
What does it mean if a solution is a "weak acid "? Strong acid? Give logical ph values for each
Answer:
A weak acid is an acid that partially dissociates into its ions in an aqueous solution or water. In contrast, a strong acid fully dissociates into its ions in water. At the same concentration, weak acids have a higher pH value than strong acids.
Explanation:
:)
How many calories of heat are required to raise the temperature of 225g of water from 10.5°C to 43.7°C
the number of molecules present in 0.036g of water
Answer:
5
Explanation:
explain how movements along faults generate earthquakes
Explanation:
When a plate moves it shifts the earth, and it can cause an earthquake.
A fault is where two of earth's tectonic plates come together. They can slide against the other, causing earthquakes, they can push against each other causing mountains to form, and they can move apart from each other, causing valleys or trenches.
What is (1.20 x 104 m) x (3.070 x 102m)
In the chemical equation, H202-H2O + O2, the H2O2 is a
reactant
catalyst
product
solid
Answer:
product
Explanation:
Write the word and balanced chemical equations for the reaction between:
Copper + zinc nitrate (zinc is more reactive than copper)
Answer:
Word Equation:
Zinc + Copper (II) nitrate → Copper + Zinc nitrate
Formula Equation:
Zn (s) + Cu(NO3)2 (aq) → Cu (s) + Zn(NO3)2 (aq)
Ionic Equation:
Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s)
Description
A 1 gram granule of zinc metal was dropped into a test tube containing 10 cm
3
of clear blue copper nitrate solution (1 M). The zinc quickly began to react with the solution producing a clear green solution and a darker solid at the bottom of the test tube.
Explanation:
