Answer:
Fe
Explanation:
. Which of the following statement is false?
D. Metalloids are conductors.
B. The least reactive elements are on the right side of the periodic table.
C. Metals are most reactive on the left hand side of the periodic table.
A. Most metals are solids.
Answer:
B
Explanation:
Answer: hey im here, whats up?
Explanation:
What state had the fewest farms? Wisconsin Georgia Illinois
What is the name of this safety equipment?
Answer:
eye wash station
Explanation:
What is happening in this diagram?
4 iterations of the following structure: 2 carbons double bonded to each other, each bonded to H above, the left C bonded to H below and the right to R below. The chain begins with an I and a dot. A curved arrow points from the dot to the space before the first structure above; curved arrows point left and right from the double bonds to the spaces before and after the structures. Arrow points to a long chain of carbons, I at the beginning of the chain. The carbons are all bonded to H above, and alternate bonding to H and R below.
Polymers are forming large monomers.
Monomers are forming large polymers.
Polymers are breaking down into monomers.
Monomers are breaking down into polymers.
ANSWER:
Monomers are forming large polymers.
Answer:
It’s B: Monomers are forming large polymers
Explanation:
Answer:
B. Monomers are forming large polymers.
Explanation:
safe laboratory practices should be followed by all chemists and other scientists true or false
Answer:
True
Explanation:
Answer:
True
Explanation:
An object with a mass of 7 kg accelerates 5 m/s2 when an unknown force is 1 point
applied to it. What is the unknown force? F=ma
Answer:
the unknown force is 35kg/m/s²
does anyone know what convection,conduction,radiation??
Answer:
Conduction is the transfer of thermal energy through direct contact. Convection is the transfer of thermal energy through the movement of a liquid or gas. Radiation is the transfer of thermal energy through thermal emission.
When atoms share electrons, the electrical attraction of an atom for the shared electrons is called the atom's
True or False Each layer has different properties
HELPPP
Answer:True
Explanation:
There is 5 different type of layers i think
Answer:
true I'm pretty sure sry if I get it wrong
what are unicellular organism?
Answer:
Single celled organism
Explanation:
They fall under two categories:
Eukaryotes and prokaryotes.
Eukaryotes: Evolved from prokaryotes, they are larger and more complex. Unlike prokaryotes, they have a nucleus. Can be single celled or multicellular.
Prokaryotes: Oldest cell type, small and simple. They do not have a nucleus. Open unit with no compartments.
which part of the human body is more complex your heart of the circulatory system
what are the orbitals present in the fifth principal energy level
Answer:
what are the orbitals present in the fifth principal energy level
Explanation:
Answer: the fifth principal energy level has the s, p, d, and f orbitals so the answer is letter d
Explanation:
help me with science for brainiest:)
Answer:
The answer is C. Plasma
How does the density of a 4-g sample of copper compare to that of a 12-g sample of copper?
What kind of spectra was analyzed to determine atomic
numbers of elements?
Answer:
Optical Atomic Spectroscopy
Explanation:
...
The kind of spectra used to measure the atomic number of elements is X-ray spectra.
The atomic number of elements is the number of protons in the nucleus of the element. According to the modern periodic law, the properties of elements is a periodic function of their atomic numbers.
In 1913, Mosely demonstrated that the atomic number of elements can be obtained from the X-ray spectra of elements. Using this method, he arranged the elements in order of increasing atomic number.
Learn more: https://brainly.com/question/11177736
Tropical fossils in now cold places is evidence for climate change.
True
False
Answer:
True
Explanation:
Finding tropical fossils in now-cold places is evidence for climate change. This indicates that the site at which the fossils were found once had a tropical climate.
Help me with this please
A runner can run at a speed of 4km/h in 2 hours. What distance will she
cover in that time? Remember to put the correct units too. *
Answer:
Distance cover = 8 km
Explanation:
Given:
Speed of runner = 4 km/h
Time taken = 2 hour
Find:
Distance cover
Computation:
Distance = Speed x Time
Distance cover = Speed of runner x Time taken
Distance cover = 4 x 2
Distance cover = 8 km
Which grouping lists the states of matter in order of increasing distance
between particles?
O1. gas, liquid, solid
O2. liquid, solid, gas
O3. solid, gas, liquid
O4. solid, liquid, gas
HELP WITH REAL ANSWER OR GET REPORTED
GOOD ANSWER = BRAINLIEST
Answer:
The answer is 10.8 g of lH2.
Explanation:
As per the equation, let us calculate the mole ratio.
N2+3H2→2NH3
As per the equation one mole of nitrogen reacts with 1 mol of hydrogen.
In terms of mass. 28.01 g of nitrogen needs 3 mol of hydrogen or 6.048 g of hydrogen.
We can set up the ratio:
28.01 g of lN2 needs 6.048 g of lH2
1 g of lN2 needs 6.048 / 28.01 g of lH2
50.0 g of lN2 needs 6.048×50.0 28.01 lg of lH2
=
10.8 g of lH2
Hope this helps!! ;)
Can someone please help !!
Answer: the sugar ge hotter??
Explanation:
write the number 874.591 correct to 2 decimal places
Answer:
874.59
Explanation:
The number after 9 is 1
1 is lower than 5 so we leave the previous number the same
The number 874.591 correct to 2 decimal places is 874.59.
What is a decimal number?A decimal is a fraction written in a special shape. as opposed to writing 1/2, for example, you could express the fraction because the decimal 0.5, where the 0 is inside the one vicinity and the 5 is within the tenths vicinity. Decimal comes from the Latin phrase decimus, meaning tenth, from the root phrase decem, or 10.
What are the types of decimals?terminating Decimal Numbers, non-terminating Decimal Numbers, recurring Decimal Numbers, non-recurring Decimal Numbers.Learn more about decimals here: https://brainly.com/question/703656
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If an atom has 9 protons and 10 neutrons, how many electrons would it have if the atom is neutral?
Explanation:
it will have 9 electrons because atomic number is equals to number of protons and number of protons is equal to number of electrons in an atom
mark me as brainliest kindly if you find this answer perfect
A particular power source releases kinetic energy that is used to move giant
magnets. These giant magnets are rotated to create electron flow. This
process describes which power source?
A. An electric generator
B. An electric motor
C. An electric reactor
D. Electromagnetism
Answer: an electric generator
Explanation:
The answer is A) An electric generator.
What is kinetic electricity in easy phrases?Kinetic power is the strength of the movement, observable as the motion of an item, particle, or set of debris. Any item in motion is using kinetic electricity: someone on foot, a thrown baseball, a crumb falling from a desk, and a charged particle in an electric field are all examples of kinetic power in paintings.
There are 3 subcategories of kinetic energy: vibrational, rotational, and translational. Vibrational kinetic strength is, unsurprisingly, a result of items vibrating. Rotational kinetic power is created with the aid of shifting items, while translational kinetic power is due to gadgets colliding with one another.
Something at domestic that moves are an instance of kinetic energy. this can be a cue ball rolling on a billiards table, a fan circulating air on a warm day, or glass shattering on the floor after it falls from the counter. electrical gadgets that are becoming on use kinetic energy as do humans transferring about the residence.
Learn more about kinetic energy here: https://brainly.com/question/25959744
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Why will carbon and hydrogen share electrons equally?
Explanation:
Carbon has four electrons in its outermost shell and needs four more to fill it.These elements share the electrons equally among the carbons and the hydrogen atoms, creating a nonpolar covalent molecule. Figure 1. Whether a molecule is polar or nonpolar depends both on bond type and molecular shape.
What occurs when a molecule combines with oxygen and produces heat?
Answer:
It combusts
Explanation:
what does density have to do with atoms?
A: density describes how many atoms are in a substance
B:Density describes how closely the atoms of a substance are packed together
C: density describes how atoms float
Answer:
B
Explanation: Density by definition is the amount of matter per given volume.
Given that a particular photon has a frequency of 2.2 x 10'7 Hz, calculate the photon's energy. Submit your answer in
scientific notation, rounded to two significant figures.
The energy of the photon is
X10
Answer:
E = 15×10⁻²⁹ J
Explanation:
Given data:
Frequency of photon = 2.2× 10⁷ Hz
Energy of photon = ?
Solution:
Formula:
E = h.f
h = 6.63×10⁻³⁴ Js
by putting values,
E = 6.63×10⁻³⁴ Js × 2.2× 10⁷ s⁻¹
E = 14.586 ×10⁻²⁹ J
E = 15×10⁻²⁹ J
The energy of photon is 15×10⁻²⁹ J.
tate whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting of iron 4 electrolysis of water
Answer: Physical change : tearing of paper, fixing of wtaer
Chemical change: rusting of iron , electrolysis of water, Rancidification
Explanation:
Physical change is a change in which there is no rearrangement of atoms and thus no new substance is formed. There is only change in physical state of the substance.
Example: tearing of paper, fixing of wtaer
Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.
Example: rusting of iron , electrolysis of water, Rancidification
Water falls into the ground,lakes,oceans,rivers,and lakes. But how?
Answer:
By precipitation (rain)
Explanation:
Water at the surface of the ocean, rivers, and lakes can become water vapor and move into the atmosphere with a little added energy from the Sun through a process called evaporation. Snow and ice can also become water vapor through a process called sublimation..
