Answer:
Ba is a metal while F is non metal
. Which of the following statements about solutions is false?
a. All solutions are mixtures.
b. All solutions are homogeneous.
c. All solutions contain two or more compounds.
d. All solutions contain at least two substances.
Answer:
B
Explanation:
The statement false about solution has been that all solutions are mixtures. Thus, option A is correct.
The solution can be defined as the dissolution of two or more substances. Thus, all solutions are been considered as dissolution of the solute and solvent molecules.
The solution has generally been the homogenous mixture as there has been the complete dissolution of the substances. However, the mixture can be defined as the combination and not the complete dissolution of the substances.
Thus, all solutions have not been considered as mixtures. Thus, option A is correct.
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a compound has an empirical formula of C6H6NO. what is its molar formula, if its molar mass is 216.2 g/mol
Answer: C12H12N2O2
Explanation:
Apt A piece of chalk becomes shorter as it is used. Which of the following is NOT true of the shorter piece of chalk?
A. Its mass has changed.
B. Its shape has changed.
C. Its volume has changed.
D. Its characteristic properties have changed.
NEED HELP ASAP!
What makes Carbon-14 so useful in “carbon dating” or “radiodating”?
Answer:
Because carbon-14 decays at this constant rate, an estimate of the date at which an organism died can be made by measuring the amount of its residual radiocarbon. ... The carbon-14 method was developed by the American physicist Willard F. Libby about 1946.
Explanation:
HELP!!! WILL MARK BRAINLIEST!!!
Which of the following metals is paramagnetic?
Question 5 options:
A)
Calcium
B)
Magnesium
C)
Sodium
D)
Beryllium
Answer:
A , B, C
Explanation: D is a Diamagnetic
The metals that are paramagnetic are Calcium, Magnesium, and Sodium. The correct options are A, B, and C.
What is paramagnetism?A weak magnetic field supplied externally can weakly attract some materials, which then create internal magnetic fields that are directed in the same direction as the applied magnetic field. This phenomenon is known as paramagnetism.
Despite not having an unpaired electron, the metal magnesium exhibits paramagnetic behavior. Sodium is also paramagnetic.
Atoms that have their electrons coupled are said to be diamagnetic, whereas those that don't are said to be paramagnetic. However, despite having no free electrons, calcium is said to be paramagnetic.
Thus, the correct options are A, Calcium, B, Magnesium, and C. Sodium.
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when u walk your dog ur using energy from the sunlight to power this activity explain (ANSWER PLESSSSSSSSSSSSSSZZZ)
Answer:
When you walk your dog, you are using energy from the sunlight to power the activity. Explain. The energy you use is transferred from glucose, which got it directly from sunlight.
Explanation:
Sixth-grade students study the relationship between potential and kinetic energy.
Which statement gives an example of potential energy converting into kinetic energy?
A.
A soccer player kicks a stationary ball toward the goal.
B.
A rollercoaster at the top of an incline and a rollercoaster rolling down an incline.
C.
O
A bow and arrow pulled back and the string on the bow and arrow released.
D.
All of the above
i think it is D
ffffffffffffffffffffffffffffffffffffffuuuuuuuuuuuuuuuuuuuuuuuuuunnnnnnnnnnnn
Which of the following is NOT true about a C-14 atom?
it contains 6 electrons
its atomic number is 6
it contains 6 neutrons
it contains 6 protons
Answer:
option C. it contain 6 neutrons.
Explanation:
What are weather balloons?
Answer:
A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde
Explanation:
Answer:
A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.
Explanation:
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HELP PLEASE!! I WILL GIVE YOU 22 POINTS!! (would mark brainliest but it’s not showing up on mine)
1) explain how the type of bonding between metals accounts for the malleability and ductility?
2)write the formula of the compound found between ammonium and sulfate.
3) what is the name of the compound that forms when silver transfers one electron to nitrogen
4) write the formula for the compound produced when magnesium and nitrate combine
5) write the formula for the compound produced when iron transfers two electrons to phosphorus
Answer:i am not studying chemistry but best of luck to you
Explanation:
What are the three types of protist and how are they similar and how are they different (this is science but there is no tab for it)
Answer:
They are eukaryotic, which means they have a nucleus. Most have mitochondria
What kind of change forms a new substance?
A. A solubility change
B. A chemical change
C. A phase change
D. A physical change
Answer:
B
Explanation:
Can someone tell me a summary of volcanoes and plate tectonics? (Please quickly!)
Answer:
Plate tectonics and how they effect volcanoes
Explanation:
Plate tectonics are when the plates (the seperate pieces of earth's crust)
crash into each other, being the main cause of natural disasters such as earthquakes, however the collision of two plates can push magma from the mantle into a crevice in the crust, forming a volcano.
I hope that this helped you.
Compute the number of ions in 58.5 g oh nacl
Answer: Explanation:
58.5 g of Na Cl = 1 mole 5.85 g ofNaCl = 1 X 5.85/58.5 = 0.1 mole Each molecule of NaCI contains one Na ion and one Cl ion = 2 ions Total moles of ions in 0.1 mole of NaCI = 2 x 0.1 = 0.2 moles
If a student rides her skateboard on a straight road and does not speed up or slow down, she is traveling with a -
Constant acceleration
Constant Velocity
Positive acceleration
Negative acceleration
Answer:
Constant velocity.
Explanation:
Calculate the specific heat of glass from the following data. The temperature of a piece of glass with a mass of 65 g increases by 26°C when it absorbs 840 J of heat energy.
Answer:497J/kg/K
Explanation:
Use the equation: Q=mS◇T
According to specific heat capacity, the specific heat of glass is 0.4970 J/gK.
What is specific heat capacity?Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.
It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.
It is given by the formula ,
Q=mcΔT
Substituting values in above equation, c=Q/mΔT, C=840/65×26=0.4970 J/gK.
Thus, the specific heat of glass is 0.4970 J/gK.
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How many Elements are in the following molecule -CHNaO
Answer:
4 elements
C carbon
H hydrogen
Na sodium
O oxygen
Explanation:
what type of land use can result in nutrient depletion
Question 1
1 pts
What part of our planet protects the planet and traps gases inside of our planet?
O hydrosphere
O Earth surface
O atmosphere
core
Which of these statements accurately describes monomers?
Monomers are macromolecules.
Monomers contain double bonds.
Monomers are made of repeating units.
Monomers contain bonds between metals.
Answer:
Monomers contain bonds between metals
Answer:
B: Monomers contain double bonds
Explanation:
I got it right on Edge
when gaseous water condenses to liquid water,
[a] The water observes energy from the surroundings.
[b] the water releases energy into the surroundings.
[c] the water particles are arranged in a orderly pattern.
[d] particles of hydrogen and oxygen combine to form H20.
Se sabe que un compuesto contiene 33.002% de carbono,9.063% de hidrogeno y el resto de oxigeno. El espectrometro de masas indica que la masa molecular aproximada es de 191g/mol(cual es la formula empirica y molecular probable
Answer:
CH3O
C6H18O6
Explanation:
Porcentaje de masa de oxígeno = 100% - (33,002% + 9,063%) = 57,935%
Divida el porcentaje en masa de cada elemento por su masa atómica relativa;
H- 9.063 / 1, C- 33.002 / 12, O - 57.935 / 16
H- 9.063, C- 2.75, O- 3.62
Dividir por la proporción más baja;
H-9.063 / 2.75, C- 2.75 / 2.75, O- 3.62 / 2.75
H- 3, C-1, O- 1
Fórmula emperical = CH3O
Dado que la masa molecular es 191 g / mol
Sea n el número de cada átomo de la molécula
Por tanto, su fórmula molecular es; (CH3O) n = 191
[12 + 3 (1) + 16] n = 191
31n = 191
n = 191/31
n = 6
Por lo tanto, la fórmula molecular del compuesto es; (CH3O) 6 que es C6H18O6
The energy that plants need for photosynthesis comes from
OA.
minerals,
OB. sunlight
OC.
oxygen
OD.
water.
Answer:
OB sunlight
Explanation:
it grows with it
what should we use in soap making process:-
a) potassium hydroxide
b) sodium hydroxide (lye)
Explain why it should be used
Sodium hydroxide, with the formula NaOH, is usually used in products as a pH adjuster. It's also used in soap-making to turn fats and oils into soap. You can find sodium hydroxide (also called caustic soda or lye) in its pure form in the cleaning aisle, since it's also really handy for clearing up clogged drains.
Select the correct name for each part of the equation
A is the reactant, B is the reaction process (or the name of the option that is hidden), C are the products, D is the coefficient, and E is the subscript.
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Elements in the same column of the periodic table of the elements all
Answer:
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
Explanation:
Answer:
the elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.
~+lil more info +~
The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.
if a sprinter runs across a football field that is 100 yards long, what is the distance in miles?
Answer:
100/20 = 5
Explanation:
Gizmo Student Exploration: Periodic Trends
Does anyone have the answer key?
Answer:
No
Explanation:
I dont at least but you may be lucky
07-PS1-6 In a laboratory experiment that measures heat energy changes in 1 point
a chemical reaction, what is the most essential piece of equipment?*
Triple Beam Balance
Calculator
Hot Plate
Thermometer
Need answer now!
humans are more like animals such as rabbits than plants because ?
Answer:
because we aren't made of gas and it seems we have a common ancestor to all animals some more than others
Explanation:
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