Answers
Answer:
Newton's 2nd Law
Explanation:
Newton's Second Law of Motion is concerned with the effect that unbalanced forces have on motion.
Law of unbalanced forces is also know as Newton's 2nd Law
Related Questions
Different isotopes are matched with their uses as (i) Co- 60- To treat cancer (ii) U- 238- To produce electricity (iii) I-131- To treat goitre (iv) Na- 24- In agricultural research Which of the below matches are correct? (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iii)
Answers
Answer:
I-131- To treat goitre
U- 238- To produce electricity
(ii) (ii) and (iii)
Explanation:
Radioisotopes have various applications in science. These applications may be positive or negative.
I-131- is used to treat goitre. This is a very important medical application of this isotope of iodine.
U-238 is ordinarily non-fissile but can be transformed to Pu-239 and used as a nuclear fuel for electricity generation.
how many atoms are there in 8.08 moles of carbon dioxide
Answers
Answer:
145.97×10²³ atoms
Explanation:
Given data:
Number of moles of CO₂ = 8.08 mol
Number of atoms of CO₂ = ?
Solution:
1 mole of CO₂ contain 1 mole C atom.
8.08 mole contain 8.08× 1 = 8.08 mole of C atom.
1 mole of CO₂ contain 2 moles of O atom.
8.08mole contain 8.08×2 = 16.16 mole of O atom.
Total number of moles of atoms = 8.08 mole + 16.16 mole
Total number of moles of atoms = 24.24 mol
Number of atoms of CO₂:
1 mole of any substance contain 6.022×10²³ atoms.
24.24 mol ×6.022×10²³ atoms / 1 mol
145.97×10²³ atoms
true or false, a temperature of 0°F is equal to 32°C
Answers
Answer:
false
Explanation:
Answer:true
Explanation:
Chromium, cobalt, and manganese are three extremely important metals. Are these metals uniformly distributed in the lithosphere? If not, what region of the Earth is the source of these metals?
Answers
Answer:
No.
Explanation:
No, these metals are not uniformly distributed in the lithosphere, they are present some special regions of earth. Chromium ore is found in many places including South Africa, India, Kazakhstan and Turkey. Cobalt ore deposits are present in the regions of Congo, Canada, Australia, Zambia and Brazil. China, Africa, Australia and Gabon are the regions on the earth where manganese metal is present in large quantity.
Above which temperature does the thermal conductivity of water start to fall?
Answers
Answer:
It’s actually 130 degrees Celsius.
Explanation:
Mechanical advantage = load/_______
Answers
Answer:
Mechanical advantage = load/effort
Explanation:
Mechanical advantage is like a ratio of load to effort and many machines like pulleys depend on this relationship between load and effort for it to work.
Answer:
The formula of mechanical advantage is Load÷effort
Explanation:
Mechanical advantage is the ratio of the load to the effort i.e. MA=Load(L)÷Effort(E)
What are the three main compositional layers of the Earth
Answers
Answer:
The Earth is divided into three chemical layers: the Core [Inner Core (D) and Outer Core (C)], the Mantle (B) and the Crust (A).
Explanation:
what is the anwser to this question
Answers
Answer:
The answer is d
Explanation:
Answer:
Nitrogen makes up most of the Earth's atmosphere
Explanation:
How many significant figures does 0.062400 have?
Answers
define the term osmosis in your OWN words
Answers
Answer:
Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one equalizing the concentrations on each side of the membrane.
Explanation:
Need help!!!!!!!!!!!!!
Answers
Answer:
density
Explanation:
Help with questions 9,10,11
Answers
Answer:
B
A
C
Explanation:
2. Balance the following equations. If an equation is already balanced, say so in
your answer.
a. Cl2 + Br → Cl + Br2
b. CaO + H20 + Ca(OH)2
C. Na2SO4 + BaCl2 → BaSO4 + NaCl
d. ZnS + 02 → ZnO + SO2
e. Cl2 + KBr → KCl + Br2
f. H2SO4 + NaOH → Na2SO4 + H20
BRAINLIEST BRAINLIEST
Please answer
Answers
B. Is balanced
C. 2 goes in front of NaCl
D. 2ZnS+3O2=2ZnO+2SO2
E. 2 in front of KBr and KCl
F. 2 goes in front of NaOH and H2O
Balance equations calculator on the internet will help with this
Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
Answers
Answer: smart guess i have is c
Explanation:
guessing sorry
Can someone Help pls :)
Answers
Answer:
D. I think
Explanation:
What was J.J. Thomson's Model known as?
A. The Pizza Model
B. The Chocolate Chip Model
C. The Mint Chocolate Chip Model
D. The Butterscotch Model
Answers
Answer:
B.The Chocolate Chip Model
Explanation:
A mixture contains 21.7 g NaCI, 3.74 g KCI, and 9.76 g Lici. What is the mole fraction of NaCl in this mixture?
Molar mass
NaCl: 58.44g/mol
KCl: 74.55g/mol
LiCl: 42.39g/mol
Answers
Answer:Mole Fraction of NaCl=0.5697
Explanation:
No OF Moles of NaCl= Mass / Molar mass
=21.7 g/58.44g/mol
=0.371moles
No OF Moles of KCl= Mass / Molar mass
=3.74g/74.55g/mol
=0.0502moles
No OF Moles of LiCl= Mass / Molar mass
=9.76 g/42.39g/mol
=0.230moles
Mole Fraction of NaCL = Moles of NaCL/ Total number of moles of the mixture
=0.371/( 0.371+ 0.0502+0.230)
0.371/0.6512
=0.5697
Answer:
Mole fraction: 0.570
Explanation:
Mole fraction is defined as the ratio of moles of a compound in a mixture over the total moles of the mixture. To solve this problem, we need to find moles of the 3 salts:
Moles NaCl -Molar mass: 58.44g/mol-:
21.7g NaCl * (1mol / 58.44g) = 0.3713 moles
Moles KCl -Molar mass: 74.55g/mol-:
3.74g KCl * (1mol / 74.55g) = 0.0502 moles
Moles LiCl -Molar mass: 42.394g/mol-:
9.76g LiCl * (1mol / 42.394g) = 0.2302 moles
Mole fraction NaCl:
0.3713mol / (0.3713mol + 0.0502mol + 0.2302mol) =
0.570
Consider the reaction
H,01) +energy > H2(g) +%02(g)
Which of the following phrases best describes this reaction?
A Endothermic, absorbing energy
B) Endothermic, releasing energy
C) Exothermic, absorbing energy
D) Exothermic, releasing energy
Answers
The following phrases best describe this reaction : A Endothermic, absorbing energy
Further explanationDelta H reaction (ΔH) is the amount of heat change between the system and its environment
(ΔH) can be positive (endothermic = requires heat) or negative (exothermic = releasing heat)
∆H positive (endothermic): energy (heat) is absorbed from the environment to the system
∆H negative (exothermic): energy (heat) released from the system to the environment
Reaction
H₂O(g) + energy ⇒ H₂(g) + 1/2O₂(g)
In this reaction, it is shown that to break the bonds on the H₂O molecule to form H₂ and O₂ molecules will require energy (breaking the bonds requires energy)
This energy is usually called ∆H dissociation⁰
How many moles are in 1.23 X 1050 atoms of calcium carbonate, CaCO3?
Answers
Answer:
Explanation:1 mole is equal to 1 moles CaCO3, or 100.0869 grams.
how many protons does Beryllium have?
Answers
Answer:
4
Explanation:
its a rare element, usually occurring as a product of the spallation of larger nuclei that have collided with cosmic rays
Q. Explain why is sulfuric acid a corrosive?
.
.
.
.
.
.
Can we clean a dumb humans brain with windex?if yes then tell me how?
Answers
Answer: yes
Explanation: cut open their head and spray their head with windex. THAT SIMPLE
PLEASE HELP IM GOING TO GIVE BRAINLY AND A LOT OF POINTS
Answers
Answer:
1)
a- 0.10 mol
b- 0.078 mol
c- 5454.54 mol
d- 0.160 mol
e- 0.022 mol
2)
a) 3.6 g
b) 14.9 g
c) 5.6 g
d) 39.9 kg
e) 6.8 g
3)
a) 28
b) 40
c) 160
d) 28
e) 249.6
The gas could be which of the following? Select all that apply. Hint: These gases are more dense than air. Nitrogen Neon Argon Carbon Dioxide Helium Hydrogen Propane Carbon Monoxide
Answers
Answer:
nitrogen, oxygen, carbon dioxide, argon, hydrogen, helium
Explanation:
(Science)The low pressure area near Earth’s equator is filled by cool air moving in from ________.
A
Europe and South America
B
the North and South Pole
C
the Prime Meridian
D
the Atlantic and Pacific Ocean
Answers
Answer:
B . the North and South Pole
Explanation:
The equator is also called the doldrum or the region of calms here the winds are moving slowly and consist of warmth and moisture. Thus developing a low-pressure system. Due to which the cool and dense winds that blow from the poles reach the equator and the warm winds move towards the poles balancing the temperatures in both the regions. As these regions don't receive most of the sunlight they have high-pressure cells.What is the chemical formula for zinc (II) phosphate?
Answers
Answer:
Zn^3(PO4)2
Explanation:
thats the formula
The chemical formula for compound zinc (II) phosphate is Zn₃(PO₄)₂.
Zinc (II) phosphate is an inorganic chemical compound that is made up of zinc cations and phosphate anions .The chemical formula for zinc (II) phosphate is obtained by combining three zinc cations with two phosphate anions to achieve the neutral charge.
Chemical formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols of elements. It also makes use of brackets and subscripts.
Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form is called empirical formula.
It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.
Thus, chemical formula for compound zinc (II) phosphate is Zn₃(PO₄)₂.
Learn more about chemical formula,here:
https://brainly.com/question/32018188
#SPJ6
The yield ( → ) symbol always points to the
Answers
I dont get what the question is?? im so sorry!
Using the model of the periodic table, which two elements pictured have similar chemical properties?
Answers
Answer:
1 and 3
Explanation:
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.
What goes in cellular respiration and what comes out of cellular respiration?
Answers
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
Which type of reaction always has an element and a compound as reactants?
Group of answer choices
A. decomposition
B. single-replacement
C. double-replacement
Answers
Answer:
B. single-replacement
Explanation:
An organism is unicellular, reproduces asexually, and lives in a hot hydrothermal vent at the bottom of the ocean. This organism most likely belongs to the kingdom