Answer:Cattle
Explanation:Cattle
What is uranium classified as
Akali Metals, Akaline Metals, Metalloids, Halogen, Noble Gas, Transition Metal, Rare Earth Metal or Non-Metal?
SOMEONE PLEASE HELP I NEED THIS NOW PLEASE JUST THIS ONE QUESTION I DON’T KNOW
Answer:
uranium is classifide as actinide a chemical element atomic number 92 and is a solid at room temperature
Read the question and help me with the answer please
Will give brainliest!!!!
Answer:
446 mmHg
Explanation:
From the question given above, the following data were obtained:
Total pressure (Pₜ) = 871 mmHg
Partial pressure of He (Pₐ) = 281 mmHg
Partial pressure of N₂ (P₆) = 144 mmHg
Partial pressure of O₂ (P꜀) =?
The partial pressure of O₂ can be obtained as follow:
Pₜ = Pₐ + P₆ + P꜀
871 = 281 + 144 + P꜀
871 = 425 + P꜀
Collect like terms
P꜀ = 871 – 425
P꜀ = 446 mmHg
Therefore, the partial pressure of O₂ in the mixture is 446 mmHg
Calculate the mass of 1 Mole of Copper(ii) sulfate pentahydrate
200 g CuSO₄ · 5H₂O
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableMolesCompoundsOrganic
Prefix rootsReactions
SaltsAnhydride SaltsHydratesStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 1 mol CuSO₄ · 5H₂O (Copper II sulfate pentahydrate)
Step 2: Identify Conversions
[PT] Molar Mass of Cu - 63.55 g/mol
[PT] Molar Mass of S - 32.07 g/mol
[PT] Molar Mass of O - 16.00 g/mol
[PT] Molar Mass of H - 1.01 g/mol
Molar Mass of CuSO₄ - 63.55 + 32.07 + 4(16.00) = 159.62 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
Step 3: Convert
There is 5 moles of water added for every one mole of Copper II Sulfate present.
[DA] Set up: [tex]\displaystyle 1 \ mol \ CuSO_4(\frac{159.62 \ g \ CuSO_4}{1 \ mol \ CuSO_4}) + 5 \ mol \ H_2O(\frac{18.02 \ g \ H_2O}{1 \ mol \ H_2O})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 159.62 \ g \ CuSO_4 + 90.1 \ g \ H_2O[/tex][DA] Add: [tex]\displaystyle 249.72 \ g \ CuSO_4 \cdot 5H_2O[/tex]Step 4: Check
Follow sig fig rules and round. We are given 1 sig fig.
249.72 g CuSO₄ · 5H₂O ≈ 200 g CuSO₄ · 5H₂O
A motor boat is traveling 10 m/s on a sunny calm day. The driver turns
off the engine. Apply Newton's first law to explain what happens to the
boat as it glides through the water. *
Answer:
If there is no resistance, current, wind, or friction on the boat, the boat would keep moving in the same direction at the same speed.
Explanation:
Newton's First Law of Motion suggests that if no external force acts upon an object, that object would continue moving in the same direction at the initial speed.
However, all objects near the surface of the earth (including the boat in this question) experience the effect of gravitational pull (an external force from the earth.) Because of these external forces, Newton's First Law of motion (when phrased in this way) would not apply to the boat.
It is frequently possible to use a more general version of this statement: if the net force on an object is zero, that object would continue moving in the same direction at the initial speed.
In other words, the object would move in the same direction at the initial speed as long as all the external forces on that object balance each other.
Assume that there is no resistance, current, wind, or friction on the boat. After the engine of the boat is turned off, the following would be the forces on this boat:
downward gravitational attraction from the earth, andupward buoyancy from the water, which counteracts the gravitational attraction on the boat.If the water is sufficiently calm, these two forces would balance one another. The external force on this boat would be zero. Hence, the boat would keep moving in the same direction at the same speed.
Aside from direct harm, what secondary issue do invasive species present?
They may be able to eat all kinds of native organisms.
They may not have any predators.
They might damage the habitat that other organisms rely on.
They might introduce other organisms like viruses and bacteria.
Answer:
They may not have any predators.
Explanation:
What are the three major Eras from 600 million years ago to today
Answer:
he Paleozoic, Mesozoic, and Cenozoic.
Explanation:
The asthenosphere flows because of
1. Goose
2.frog
3. Turkey
4.earthworm
Answer:
Goose
Explanation:
following yes on the key,
feather: yes -> swims
Swims: yes -> goose
understanding coefficients
Answer:
Mg-9
N-6
C-2
O-4
Ca-9
P-6
O-24
Explanation:
What type of reaction is shown below?
A. hydration reaction
B.addition reaction
how many atoms in 2.25 mol of O2
Answer:
1 molecule of oxygen has 2 atoms.
So 2,25 molecules of oxygen have 2 x 2,25 atoms.
2 x 2,25 = 4,5 atoms
There are 4,5 atoms in 2,25 molecules oxygen.
The chemical equation, 2 Cr + 3 Fe(NO3)2 - 3 Fe + 2 Cr(NO3)3, is an
example of which type of reaction?*
Answer:
Single replacement reaction (aka single displacement reaction)
Explanation:
In a single replacement reaction, one element is substituted for another in a compound to create a new compound and a new element in the products. The general form is:
A + BC --> B + AC
In the case of this question, Cr and Fe "trade places."
Hydrochloric acid is a ———— ?
A. Strong electrolyte
B. Weak electrolyte
C. Non-electrolyte
D.
E. Molecular compound
Answer:
A is the answer
Explanation:
Pls mark BRAINLIEST
A chemist working for Udensi industries wants to create a new ink for tattoos and cosmetics. Determine the theoretical yield of iron (ll) sulfide if the chemist uses 22.5 grams of iron ? Type of rxn : AD , SR, DR , D Type of calculation : mol to mol ; mol to mass ; mass to mols mass to mass Fe S8--> Fes
Answer:
35.36 g
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
8Fe + S₈ —> 8FeS
Next, we shall determine the mass of Fe that reacted and the mass of FeS produced from the balanced equation. This can be obtained as follow:
Molar mass of Fe = 56 g/mol
Mass of Fe from the balanced equation = 8 × 56 = 448 g
Molar mass of FeS = 56 + 32 = 88 g/mol
Mass of FeS from the balanced equation = 8 × 88 = 704 g
SUMMARY:
From the balanced equation above,
448 g of Fe reacted to produce 704 g of FeS.
Finally, we shall determine the theoretical yield of FeS as follow:
From the balanced equation above,
448 g of Fe reacted to produce 704 g of FeS.
Therefore, 22.5 g of Fe will react to produce = (22.5 × 704)/448 = 35.36 g of FeS.
Thus, the theoretical yield of FeS is 35.36 g
"What is the potential energy relative to the water surface of a diver at the top of a 26 m
high diving platform? Suppose she has a mass of 35 kilograms."
Answer:
PE = 8918 J
Explanation:
Formula for potential energy here is;
PE = mgh
Where;
m is mass
g is acceleration due to gravity
h is height
We are given;
m = 35 kg
h = 26 m
Thus;
PE = 35 × 9.8 × 26
PE = 8918 J
Science**
5) Which statement best states the relationship between mass and
gravitational attraction between two objects? *
The less mass an object has, the greater its gravitational force.
Which animal is a vertebrate
Fish
crab
shrimp
octopus
Answer:
fish
Explanation:
vertebrate is an animal with a spinal cord surrounded by cartilage or bone ,so example of a vertebrate is fish
Dose Anabolic Reaction helps cells multiply and stay good condition
DO NOT JUST USE UP THE POINTS I WILL REPORT YOU
tell me if your from connexus please with your answer
The reaction 2Mg(s) + O2(g) --> 2MgO(s) is a
Group of answer choices
double-replacement reaction.
decomposition reaction.
synthesis reaction.
single-replacement reaction.
Answer:
Double-Replacement Reaction
Explanation:
Mg is Oxidized, and O2 is the cause of the oxidation, hence the Oxidizing agent. That means that O2 is Reduced and Mg is the cause naming it the Reducing agent.
OIL - RIG Oxidation is Loss-Reduction is Gain
8. FOR BRAINLIST!!!
Genetic variation describes naturally occurring differences among individuals within
the same population or species. It is based on the differences in the alleles in the
gene pool in a population. These differences--
I think it's either b or c
if a runner decreases his velocity from +20 m/s to +10 m/s what is his average acceleration
Answer:
f a runner decreases his velocity from +20 m/s to +10 m/s, with average acceleration is -5m/s².
Explanation:
Compare and contrast the behavior of the food coloring and the floating pieces of paper before and after adding heat to the system. What caused the changes you observed
Answer:
the answer is c
Explanation:
Answer:
Im doing this rn :0, look at explanation ill try to help
Use different words
Have a great day!
pls give brainliest and hit the heart if this helped :3
Explanation:
The changes I observed are that when you do not use hot water, the food coloring stays at the bottom and doesn't spread to the top, but when I do use food coloring, it spreads everywhere in the water. I don't know what caused the changes I observed, but I think its because heating food coloring does something to it to make it spread, maybe hotter liquids spread faster?
A 0.6113-g sample of Dow metal, containing aluminum, magnesium, and other metals, was dissolved and treated to prevent interferences by the other metals. The aluminum and magnesium were precipitated with 8-hydroxyquinoline. After filtering and drying, the mixture of Al(C9H6NO)3 and Mg(C9H6NO)2 was found to weigh 7.8154 g. The mixture of dried precipitates was then ignited, converting the precipitate to a mixture of Al2O3 and MgO. The weight of this mixed solid was found to be 1.0022 g. Calculate the %w/w Al and %w/w Mg in the alloy
Answer:
95.55% w/w Mg; 2.89% w/w Al
Explanation:
We can solve this question using both precipitates mixture. for example, for the oxide:
Mass MgO + Mass Al2O3 = 1.0022g
Moles MgO*40.3044g/mol + Moles Al2O3*101.96g/mol = 1.0022g
Where we are writting the molar mass of each oxide.
We can write, thus:
40.3044X + 50.98Y = 1.0022 (1)
Where X are moles of Mg and Y moles of Al
Because 1 mole of Al2O3 are 2 moles of Al
And for the other mixtue:
312.605X + 459.4317Y = 7.8154 (2)
Replacing (2) in (1):
312.605(1.0022-50.98Y / 40.3044) + 459.4317Y = 7.8154
312.605(0.024866-1.26487Y) + 459.4317Y = 7.8154
7.7732 - 395.406Y + 459.4317Y = 7.8154
64.0257Y = 0.0422
Y = 6.591x10⁻⁴ moles = Moles Al
The moles of Mg are:
312.605X + 459.4317*6.591x10⁻⁴ moles = 7.8154
312.605X + 0.3028 = 7.8154
312.605X = 7.5126
X = 0.02403 Moles = Moles Mg
The mass of each metal and its mass percent is:
Mg: 0.02403moles * (24.305g/mol) = 0.5841g / 0.6113g * 100 =
95.55% w/w MgAl: 6.591x10⁻⁴ moles * (26.98g/mol) = 0.01767g / 0.6113g * 100 =
2.89% w/w AlWhich rock type(s) could be transformed into sediment?
a: sedimentary rock
b. igneous rock
c. both rock types
d. neither rock types
Answer:
b!
Explanation:
Answer:
c - both rock types
Explanation:
when weathered and eroded they can become sediments!
The reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) is a(n)
Group of answer choices
combustion reaction.
ionic reaction.
synthesis reaction.
decomposition reaction.
Answer:
decomposition reaction.
Explanation:
It is a decomposition reaction as potassium chlorate compound breaks to form potassium chloride and oxygen. This reaction requires heat as source of energy to break down the compound so it is endothermic in nature.
Which of the following hypotheses is incorrect?
A I UV light can damage the eyes, then UV light may be the cause of blindness.
B.
The length of the string has an effect on the time of the oscillation. As the length shortens, the time taken for one oscillation also decreases.
If the diffusion rate through a membrane is related to the molecular size, then smaller the molecule, the faster it will pass through a membrane.
D
Soft drinks are acidic because of the presence of citric acid and phosphoric acid.
Answer:
A
Explanation:
uv light doesn't cause permanent blindness rather causes a condition known as Photokeratitis.
photokeratitis is a painful condition caused by uv light to the eye.
A sound wave has a frequency of 3250 Hz and a
wavelength of 0.1 m. What is its velocity? SHOW
YOUR WORK
help please!!
Answer:
c = 325.0 m/s.
Explanation:
Hello there!
In this case, since the frequency, velocity and wavelength are related via:
[tex]c=\lambda *f[/tex]
Whereas c is the velocity, lambda the wavelength and f the frequency. Thus, we plug in the given data to obtain:
[tex]c=3250s^{-1}*0.1m\\\\c=325.0m/s[/tex]
Best regards!
Karl went to the doctor complaining of a sore throat. The doctor performed
a throat culture and determined that antibiotics were not necessary. The
doctor told her to drink tea, take ibuprofen, and rest. Which type of microorganism most likely caused Karl's sore throat?
a) bacteria
b) virus
c) parasite
d) fungi
Answer:
A
Explanation:
bc
17.5 mL of 0.1000M NaOH was required to neutralize 25.0 mL of HCl. What was the molarity of the HCl?
Answer: The molarity of [tex]HCl[/tex] is 0.07 M
Explanation:
According to the neutralization law,
[tex]n_1M_1V_1=n_2M_2V_2[/tex]
where,
[tex]n_1[/tex] = basicity [tex]HCl[/tex] = 1
[tex]M_1[/tex] = molarity of [tex]HCl[/tex] solution = ?
[tex]V_1[/tex] = volume of [tex]HCl[/tex] solution = 25.0 ml
[tex]n_2[/tex] = acidity of [tex]NaOH[/tex] = 1
[tex]M_1[/tex] = molarity of [tex]NaOH[/tex] solution = 0.1000 M
[tex]V_1[/tex] = volume of [tex]NaOH[/tex] solution = 17.5 ml
Putting in the values we get:
[tex]1\times M_1\times 25.0=1\times 0.1000\times 17.5[/tex]
[tex]M_1=0.07M[/tex]
Therefore, molarity of [tex]HCl[/tex] is 0.07 M