Answers
Answer:
charge of copper.. ........mark me brainlest
Related Questions
someone help ,, I'll give brainliest lolll .
Answers
Answer:
#2
Explanation:
Corrosion is a natural process that converts a refined metal into a more chemically stable form . It is the gradual destruction of materials by chemical
The melting point of a substance is the same as its _____ point.
evaporation
freezing
boiling
sublimation
Answers
WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN
HOMEOSTASIS
Answers
Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.
Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.
A scientist wants to investigate the effect of concentration of nutrient agar to the growth of bacteria. He created 3 set ups: A) 30 g nutrient agar powder in 1 L H2O B) 40 g nutrient agar power in 1L H2O C) 50 g nutrient agar powder in 1 L H2O
1) Based from the given scenario, CREATE a testable hypothesis using IF-THEN- BECAUSE statements.
2) Using your hypothesis, IDENTIFY the dependent and the independent variables.
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Which of the following objects would take you the greatest amount of force to accelerate?
Answers
Complete question is;
Which of the following object would take you the greatest amount of force to accelerate.
A) a soccer ball with a mass of 0.5 kg
B) a refrigerator with a mass of 200 kg, C) a bike with a mass of 25 kg
D) a car with a mass of 5,000 kg,
Answer:
D) a car with a mass of 5,000 kg
Explanation:
Formula for force is;
F = ma
Where;
F is force
m is mass
a is acceleration
Now, Force is directly proportional to the acceleration and mass.
Thus, the higher the mass, the greater the force.
Thus, the object that will require the most force is the one that has the highest mass.
Looking at the options, the one with the highest mass is option D.
hi can you balance the equation Fe + O2 = Fe2O3
Answers
Answer:
4Fe + 3O2→ 2Fe2O3
Explanation:
Fe + O2 → Fe2O3 is the unbalanced form of chemical reaction.
Balancing the simple molecules first, in this case the O2
Fe + 3O2→ Fe2O3 there are now 6 O atoms on the left, there must also be 6 O atoms on the right.
Fe + 3O2 → 2Fe2O3
Balance the rest of the equation.
4Fe + 3O2→ 2Fe2O3
11. What is the molarity of a solution that has 0.512 moles of NaCl dissolved in 0.24 L of solution? (Show WORK. Circle the correct answer: 2.1M or 1.2M)
Answers
Answer:
2.1 M
Explanation:
Molarity is moles per liter:
0.512 mol NaCl / 0.24 L = 2.1 M
In a metallic bond electrons are _______________. A. transferred C. shared B. delocalized D. lost
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Answer:
in a metallic bond electrons are delocalized
Which characteristics of flower petals help an angiosperm reproduce? (Select all that apply.)
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Answer:
attractive smell and bright colours
Which one do I pick?
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Answer:
i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all
An object accelerates 5.0 m/s2 when a force of 12.0 newtons applied to it.What is the mass of the object?
Please help, I haven’t seen this question anywhere !
Also this is from my Science Class
Answers
Answer:
2.4kg
Explanation:
Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for mass by rearranging algebraically:
m = F/a
So:
m = (12.0N)/(5.0m/s2) = 2.4kg
whats the number of atoms in 5CaC12?
Answers
There are 70 atoms in 5CaC12
What does water offer that attracts human settlement?
Answers
Answer:
Water is a human necessity. Therefore, it is one of the first things a human settlement would need to have. A community cannot thrive without a water source.
Answer:
Water is a basic need that is more than a necessity, humans can't survive without water for more than a period of three days, And thus having water as available, creates a tendency among humans as humans like to get everything at ease so they tend to settle near the water bodies if possible.
The balanced equation below shows the products that are formed when butane (C4H10) is combusted.
2C4H10 + 13O2 Right arrow. 8CO2 + 10H2O
What is the mole ratio of butane to carbon dioxide?
2:8
1:5
13:8
13:10
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Answer:
2:8
Explanation:
Answer:
2:8
Explanation:
got it right on edge
Explain why the Cell A (nerve cell) and Cell B (red blood cell) cannot switch jobs
Answers
That is copied from “gene expression” article
But all in all, the cells have different structures and different jobs. This means that they are produced for that one job and cannot be made to do another job that they aren’t specifically made for. As well the dna make up will produce these cells specifically and in different cells than the other.
Hopefully this helps some. Have a nice day!
someone help ,, I'll give brainliest lolll .
Answers
Answer:
# 4
Explanation:
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism.
A tower built of Iron is 500 meter tall. What is the change in height (m) if it is exposed to 25 0 Celsius during summer and at 1.00 Celsius during winter. α iron = 1.2 x 10-5/ Celsius
Answers
Answer:
-0.144 m
Explanation:
From the question,
α = Δh/(h₁Δt).................... Equation 1
Where α = coefficient of linear expansivity of iron, Δh = change in height, h₁ = initial height, Δt = change in temperature.
make Δh the subject of the equation
Δh = α(h₁Δt)..................... Equation 2
Given: α = 1.2×10⁻⁵/°C, h₁ = 500 m,
Δt = (t₂-t₁) Where t₂ and t₁ = Final and initial temperature respectively.
Δt = (1-25) = -24 °C
Substitute these values into equation 2
Δh = 1.2×10⁻⁵[500×(-24)]
Δh = 1.2×10⁻⁵(-12000)
Δh = -0.144 m
In a solution made of baking soda and water, the baking soda is the?
Answers
Answer:
solute
Explanation:
water is the solvent and baking soda is the solute and it dissolve in water to make a solution
What is the mass of oxygen in 10 grams of water?
Answers
Answer:
The answer is 16.00 amu
For the balanced equation shown below, if the reaction of 34.6 grams of C2H4F2 produces 6.90 grams of H2O, what is the percent yield?
2C2H4F2 + 3O2 → 4CO + 2H2O + 4HF
Answers
lima ribu juta miliar triliun ......
An idea is being proposed. The steps that led to the idea are listed below:
There was a review by the scientific community.
The data collected was observable and measurable.
Opinion and values of all social groups were implemented.
Can this idea be scientific?
A. Yes, because the idea was tested empirically.
B. No, because opinions and social values may lead to bias.
C. Yes, because all steps of the scientific method were followed.
D. No, because the scientific community often favors its peers.
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Answer:
No because opinion and social values may lead to bias
Explanation:
I'm smart >:)
B. No, because opinions and social values may lead to bias.
if it's wrong correct me but I'm pretty sure that's right!
Question #9: What is the
temperature at an altitude of 50
kilometers above sea level?
Answers
Answer:
20ºCelsius
Explanation:
Describe the periodic trend in the ionization energy of elements down a group. Use the periodic table, ionization energy and your knowledge of atomic radius as evidence.
Answers
Answer:
As we move down the group it increases.
Explanation:
This is because the electrons are farther away from the nucleus and hence they are not tightly bounded.
Which is a higher concentration, 10-9 M or 10-8 M? Explain.
Answers
Answer:
10-9 Millimeters/liters
Explanation:
Because 10-9 M Is more than 10-8 M
I hope this is correct
What is the oxidation state of S in S2032-?
O A. +3
O B. -2
O C. +4
D. +2
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Answer: D.) +2
so the oxidation state of sulfur is +2.
Explanation:
how to find molar mass
Answers
Answer:
Multiply the element's atomic mass by the number of atoms of that element in the compound. This will give you the relative amount that each element contributes to the compound. For hydrogen chloride, HCl, the molar mass of each element is 1.007 grams per mole for hydrogen and 35.453 grams per mole for chlorine.
What is the percent composition of Iron in
Fez(Cr207)3
Answers
Answer:
Explanation:
The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound
If you get a root canal or any other potentially painful procedure done at the dentist's office, he or she will probably inject your gums with a local anesthetic to "numb the pain." Neurons that trigger pain are called nociceptors. They trigger pain in order to alert the body to potentially dangerous stimuli. Most local anesthetics hinder the activity of all local neurons, not just nociceptors, so pain is not the only sensation that goes away temporarily. Because all feeling is gone, you can end up drooling on yourself without knowing it.
Considering this information about local anesthestics, which of the following statements best demonstrates that science is an ongoing process that changes in response to new information and discoveries?
A. There are a variety of local anesthetics being used today, including lidocaine, prilocaine, and mepivacaine.
B. Sir Charles Sherrington, who discovered nociceptors, wrote a book about the nervous system that helped show its role in allowing organisms to adapt to their environments.
C. Unlike a local anesthetic, a general anesthetic causes a person to lose consciousness rather than sensation in one area.
D. Scientists have discovered a way to use a compound found in hot peppers, capsaicin, along with an anesthetic in order to block nociceptors only.
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can someone help me i need it before 10:10
Answers
Answer:
B 6NO A 5N2 C 6H2O D 4Nhd
Explanation:
Match the items to use the analogy of time to the vocabulary of chemistry.
1 Year
Amount of Matter
Time in general
-
1 Atom/Particle
1 Second
1 Mole
1
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Answer:
1 year- 1 mole
time in general- amount of matter
1 second- 1 atom/ particle