True
The Cold War & tensions with Russia led to the great Space Race. Getting into space was a goal of the US as well as Russia and whomever got into space would be considered superior in the world's perspective
If you put 8 protons and 8 neutrons, which element did you make?
oxygen
sulfur
berllium
gadolinium
state four difference between the series and parallel connection?
Answer:
1- The components in a series circuit are arranged in a single path from one end of supply to another end. However, the multiple components in a parallel circuit are arranged in multiple paths where the two end terminals of the battery.
2- In the series circuit, different voltage exists across each component in the circuit. Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.
3- The equivalent resistance in case of a series circuit is always more than the highest value of resistance in the series connection. While the equivalent resistance in the parallel circuit is always less than any of the individual resistances in parallel combination.
4- A fault in one of the components of the series circuit causes hindrance in the operation of a complete circuit. As against fault in a single component in a parallel network do not hinder the functioning of another part of the circuit.
The detection of a fault in case of a series circuit is difficult, but it is quite easy in parallel circuits.
there are 20 _______ amino acids (9)
(fill in the blank)
Answer: different
Explanation: There are 20 different amino acids.
How
myny moles are present in 5.6x1022 atoms of Ne? (0.09 moles Ne)
Sot ne10.05
Answer:
mole = no of atoms/ 6.02E23.... so therefore answer= 5.6E22/6.02E23= 0.093✨
Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects
Answer:
I'm pretty sure it's a I'd its wrong I'm sorry
Answer:
developing solutions to questions through scientific research
Explanation:
Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.
Mountain ranges are the result of many different
Answer:
yea that answer he gave is correct
Explanation:
What are some ways you can avoid the health risks of too much radiation
exposure?
Answer: when you go outside protect your skin with sunscreen, protective clothing, a hat, and sunglasses
Explanation:
One of the pieces of evidence supporting energy quantization was the line spectra of elements. Why does this demonstrate energy quantization?
a) Photons are packets of energy that act both as a particle and a wave.
b) The spectra is continuous and shows emission at all wavelengths.
c) There are sharp emission lines demonstrating discrete energy levels.
d) All compounds emit light in the ultraviolet and visible regions specifically.
Answer:
c) There are sharp emission lines demonstrating discrete energy levels.
Explanation:
When an element emits energy in the form of radiation, it produces a spectrum of colors on a photographic plate. This spectrum can either be continuous or discrete. In continuous spectrum the spectrum continues without any discrimination between two regions. This represents the continuous emission of radiation, and thus the continuous emission of energy without any break.
On the other hand, the line spectrum consists of discrete and sharp lines, which shows the emission of radiation in a certain amount in a certain time, with a break between emission. Hence, the line spectra supports the quantization of energy.
The correct option is:
c) There are sharp emission lines demonstrating discrete energy levels.
Which of the following is a natural source of electricity?
A deep mines
B ligthening
C coal
D car batteries
Answer:
c
Explanation:
by burning it we get steam from.it electricity ..........
How does bacteria from a fecal transplant help the patient with an C. difficile infection?
Answer:
difficile infection. By reintroducing a healthy diversity of bacteria, fecal transplantation can re-establish colonization resistance to prevent C. difficile from gaining a foothold and becoming a dominant organism in the environment of the gut.
Explanation:
How is a scientific theory different from everyday theories proposed by random individuals?
A.
Everyday theories can be proven beyond doubt.
B.
Everyday theories are based on facts, not opinions.
C.
Scientific theories must be supported by evidence or data.
D.
Scientific theories are not different from everyday theories.
Which student is responses are correct?
Answer:
Neutrons: Electron cloud
Explanation:
why is diamond hard
The outermost shell of each carbon atom has four electrons. In diamond, these electrons are shared with four other carbon atoms to form very strong chemical bonds resulting in an extremely rigid tetrahedral crystal. It is this simple, tightly-bonded arrangement that makes diamond one of the hardest substances on Earth.
Answer: Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.
Explanation:
On July 8th, I will be 8.51472x108 seconds old. How old will I be in years? (Assume 365 days in a year.)
step by step
Answer:
You will be 27 years old (✿◠‿◠)
How to do ionic equations
Answer:
Write the ionic equation by breaking all the soluble ionic compounds into their respective ions. Each ion should be shown with its charge and an to show that it is present in solution. Use coefficients to show the number of each ion present.
Explanation:
Hope this helps and I hope you have a wonderful day! Spread the love!
3-4 sentences if you give me 3-4 ill like if you give me 5 ill give 5 star if you give me 6 ill do all and branliest pls help. Why is the study of human movement important?
Human Movement is important because it most commonly used to insure optimal athletic ability. It can also be used to identify the cause of most common sports injuries and movement-related problems. The name for this type of study is called Kinesiology. This is a very necessary part of students understanding dance, sports, and physical well-being. Studying Kinesiology results in better physical performance, as well as many cardiovascular improvements. Kinesiology is used to answer many still unknown question about human movement.
which is a characteristic of the part of the atom marked A
Answer:
Please upload the picture and I can answer
Explanation:
Answering: it is mostly empty space
Explanation:
If a box of 500 washers weighs 125.0g how many boxes would you have if you have 18.0kg of washers? How many washers would this be?
Answer:
144 boxes, 72,000 washers
Explanation:
I'm not sure if this is right but convert the 18kg to g and then divide it by the grams. You get 144 and then multiply it by 500 for the total number of washers
Help fast!
Determine the density of a liquid if it’s mass is 50.5 grams.
Answer:
do we have the volume ?
Explanation:
how much electrons are present in MnO4-
How does sediment form?
Molten rock cools below Earth’s surface.
Chemical changes cause sediment to cement together.
Loose material is compacted by pressure.
Weathering breaks down rock and other material.
i will give brainlest also if this get answer becuase i said this no one should have to say that but i will
Answer:
Loose Material is compacted by pressure.
If a cube has an edge length of 0.843 cm what is the volume of the cube? (Answer should be 3 decimal places)
Answer:
0.600
Explanation:
Hope this helps!
how would you differentiate between acid and bases if the list of their chemical formula is given to you
Explain how the mid-ocean ridge supports
the theory of sea floor spreading.
help plzzz:(
How does a rain gauge measure rainfall?
A.
by collecting rain in a measuring container
B.
by counting raindrops
C.
by measuring the sound of rainfall
D.
by measuring the darkness of clouds
Urgent help meee ;(((
Answer:
C
Explanation:
A homologous series is a group of molecules with the same general formula and the same functional group.
What is the independent variable in this experiment?
Answer:
D
Explanation:
because it was the variable that was changed in the experiment. distance was controlled and speed changed with time.
When Silver (Ag) forms a metallic bond with other Silver atoms, what do the valence electrons move into? A. the all go to the same Silver atom B. the bond with the oxygen in the atomsphere C. they escape to free space D. the sea of electrons
Answer:
D. the sea of electrons
Explanation:
Metallic bonds are defined as the bonds formed between two or more metals. Silver atom form metallic bond with other silver atoms.
In metallic bond, the free electrons or valence electrons present in s and p orbitals delocalize. The valence electrons do not move around the atoms or enter the atoms whereas they form a sea of electrons in which they surround the nuclei (positively charged) of the metal ions interacting. The valence electrons are then freely move in the space between the atomic nuclei.
Hence, the correct answer is "D. the sea of electrons".
Write the half reactions and the balanced equation for the galvanic cell Cu(s)| Cu2+(aq)|| Cu+(aq)| Cu(s). What is the smallest possible integer coefficient of Cu+(aq) in the combined balanced equation?
Answer and Explanation:
The galvanic cell is:
Cu(s)| Cu²⁺(aq)|| Cu⁺(aq)| Cu(s)
The first two species before the double bar (||) constitute the anodic half reaction (oxidation):
Cu(s) ⇒ Cu²⁺(aq) + 2 e-
The two species after the || constitute the cathodic half reaction (reduction):
Cu⁺(aq) + e- ⇒ Cu(s)
If we multiply the reduction half reaction by 2 (to obtain the same number of electrons than oxidation reaction) and then we add the two half reactions, we obtan the balanced equation:
Reduction (cathode) : 2Cu⁺(aq) +2 e- ⇒ 2Cu(s)
Oxidation (anode) : Cu(s) ⇒ Cu²⁺(aq) + 2 e-
------------------------------------
Total equation: 2Cu⁺(aq) + Cu(s) ⇒ 2Cu(s) + Cu²⁺(aq)
Cu(s) is in both reactants side and products side, so we cancel that in both opposite sides to obtain:
2Cu⁺(aq) ⇒ Cu(s) + Cu²⁺(aq)
If we divide the balanced equation into 2, the smallest possible integer coefficient for Cu⁺(aq) is 1:
Cu⁺(aq) ⇒ 1/2 Cu(s) + 1/2 Cu²⁺(aq)
I WILL GIVE YOU BRAINLIEST!!!
which sentence uses emitting correctly
A after emitting his mistake, Charlie vowed to make things better.
B Charlie should be emitting an apology.
C Charlie heard birds emitting a very strange sound.
D the emitting sound of an early moring birds woke charlie.
Answer:
its either A or C
Explanation:
Q) which sentence uses emitting correctly ?
Answer :(c) Charlie heard birds emitting a very strange sound .Explanation :
Emitting means ' to give off ' , since birds are giving off a strange sound , we say " Charlie heard birds emitting a very strange sound " .