Answers
Answer:
magesium di chloride
Explanation:
it has one magnesium and 2 chlorines
Answer:
Magnesium Chloride
Related Questions
please help me I will give you 10 points
Answers
Answer:
red ig
Explanation:
What is the correct formula for the ionic compound chromium (III) nitride?
Answers
hope that helps
Scott and his classmates were looking at an animal cell under a microscope. They are trying to locate the cell's DNA, which is found in its chromosomes. Where should Scott look to find the chromosomes?
In the mitochondria
In the cell nucleus
In the cytoplasm
In the cell vacuole
Answers
How many Joules of heat are required to melt 250 grams of ice at 0°C?
AHfus = 334 J/g
AHvap = 2258 J/g
Cp= 4.184 J/g C
Answers
Answer:
cp =4.184/c / j
Explanation:
ahvap=2258j/g
Heat required : Q = 83500 J = 83.5 kJ
Further explanationGiven
mass ice = 250 g at 0°C
Required
The heat required
Solution
The heat to change the phase can be formulated :
Q = m.Lf (melting/freezing)
Lf=latent heat of fusion
Input the value :
Q = 250 g x 334 J/g
Q = 83500 J
how many newton’s to lift a 25kg weight
Answers
Answer:
245.18 newtons
Explanation:
245.18 newtons
An i just want the points
thank you
Explanation:
PLEASEEEE HELP I WILL GIVE 30 POINTS Cobalt
Calcium
Platinum
Phosphorus
Part II:
Look at a periodic table, and in the space below type the missing chemical or symbol. Then answer the question below.
Iron:
Co:
Na:
Tin:
P:
F:
Fe:
Magnesium:
Uranium:
Ca:
Carbon:
Lead:
Ag:
Zn:
Ni:
Part III:
You have found a new element with the atomic mass of 119. In a paragraph explain where you would put in on the periodic table and why you would put it there. What type of properties would this element have? What would you call it?
Answers
Answer:
Iron: Fe
Co: Cobalt
Na: Sodium
Tin: Sn
P: Phosphorus
F: Flourine
Fe: Iron
Magnesium: Mg
Uranium: U
Ca: Calcium
Carbon: C
Lead: Pb
Ag: Silver
Zn: Zinc
Ni: Nickle
----------------
There is honestly no right answer for this but here is what I would put:
Atomic mass increases as you go from left to right. If you look at the periodic table, it would be between Sn and Sb. It would bet here because Sn is 118 and Sb is 121. Basing it off of Antimony and putting it in group 15, the properties are that it is metallic and is a poor conductor of heat. I would call it Stin, which would be shortened to St.
Prokaryotes store their DNA in a nucleus.
True
or false
Answers
An apple, potato, and onion all taste the same if you eat them with your nose plugged
Answers
｡☆✼★━━━━━━━━━━━━★✼☆｡
✩✩✩
Hey, love!
You only get that little quote if your streak gets higher so, congrats on that!
Keep it up, stay lovely!
✩✩✩
When two objects are touching, thermal
energy transfers from...
hotter to colder substances?
Or
colder to hotter substances?
Answers
Answer:
According to the laws of thermodynamics, Molecular movements of particles will tend to move into state of lower energy and this would mean that knowing the vibrational and translational energy of complex molecules will lose and give off energy usually in the form of heat but also sound and other transferable mediums it will tend to become less energetic and this mobile indicative of colder objects, if examining the average Molecular kinetic energy and bond energies of the compounds in question.
protons are one of the heavier pieces of an atom. true or false?
Answers
Answer:
true
Explanation:
By February of 1861, how many states seceded from the Union?
5
11
9
7
Answers
Answer:
D. 7
Explanation:
i did it
When matter has define volume ,but can take the shape of its container we call it a
Answers
sodium hydrogen carbonate is heated after heating which substance is form??? and what is the colour of the substance
Answers
A by-product of photosynthesis that is not used by the plant, but rather released into the air, is ________________.
Answers
Answer: I think is carbon dioxide!!
Explanation: ( i havent learned about photosynthesis in a long time :) )
hope i helped!! also have a good day!
Write chemical name ofNH4Cl, Na2CO3.
Answers
Answer:
NH4CI
AMMONIUM CHLORIDE
NA2CO3
SODIUM CARBONATE
How many moles of H2S are produced?
Answers
Answer:
You can view more details on each measurement unit: molecular weight of H2S or grams This compound is also known as Hydrogen Sulfide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2S, or 34.08088 grams. Note that rounding errors may occur, so always check the results.
The number of grams that one "mole" of a substance weights is the definition of molar mass. So, the molar mass of H₂S is "34.08088"gams.
Molar mass:In the definition of molar mass is the total atomic weights of the atoms that make up a molecule.Detailed information about each measurement unit can be found here: H₂S molecular weight in grams Hydrogen Sulfide is another name for this substance. A mole is the SI base unit for substance quantity. One mole of H₂S, or 34.08088 grams, is equal to one mole of H₂S.Find out more about the moles here:
brainly.com/question/20055843
Si en un laboratorio hay 300 moles de plomo y 300 moles de plata en cual de los dos casos la masa en mayor?
Answers
Answer:
Esto significa que la masa en las moles de plomo es mayor que en las de plata.
Explanation:
Las moles de los átomos representan la cantidad de átomos presentes. Para saber la masa de los átomos debemos convertir las moles a gramos usando el peso molecular de cada uno de los átomos (207.2g/mol para el plomo y 107.82g/mol para la plata).
La masa de plomo en 300 moles es:
300 moles * (207.2g / mol) = 62160g de plomo
Y la masa de plata es:
300 moles * (107.82g / mol) = 32346g de plata
Esto significa que la masa en las moles de plomo es mayor que en las de plataA doctor prescribes 125 mg of penicillan to be taken 4 times each day. The
concentration of the solution given to the patient is 250mg penicillan/5ml. How
many mL should the patient take in each dose?
1) 500 mL
2) 10.0 mL
3) 2.50mL
4) 50.0 mL
5) 2.0 mL
Answers
10 ml should the patient take in each dose
Further explanationGiven
125 mg of penicillan ⇒ 4 times/day
The concentration = 250 mg/5 ml
Required
The volume of the dose
Solution
The mass of penicillan/day :
= 125 mg x 4 times
= 500 mg
The volume/day :
= 500 mg : 250 mg/5 ml
= 10 ml
Consider the rate law below.
R=k[A]2
What effect does doubling the concentration have on the rate?
A. doubles the rate
B. triples the rate
C. quadruples the rate
D. no effect on the rate
Answers
C. quadruples the rate
Further explanationGiven
The rate law :
R=k[A]²
Required
The rate
Solution
There are several factors that influence reaction kinetics :
1. Concentration 2. Surface area 3. Temperature 4. Catalyst 5. Pressure 6. StirringThe rate is proportional to the concentration.
If the concentration increased, the reaction rate will increase
The reaction is second-order overall(The exponent is 2)
The concentration of A is doubled, the reaction rate will increase :
r = k[A]² ⇒ r= k[2A]²⇒r=4k[A]²
The reaction rate will quadruple.
how many atoms are in 2.85x10^3 g of gallium
Answers
Answer:
2850 grams I hope this help
How many joules would it take to raise a 9.00 kg sample of cobalt 6°C?
Answers
what is metaphase
HELEPWOAUSJSKQJDHEHR
Answers
Answer:
the second stage of cell division. its between prophase and anaphase during the chromosomes become attached to spindle fibers.
If 42.68 ml of 0.43 M KOH is used to neutralize 18.40 ml of H, SO4, calculate
the concentration of the sulfuric acid solution.
Write the net ionic equation of this reaction
Answers
The concentration of the sulfuric acid : 0.499 M
The net ionic equation
2 OH ⁻(aq]+ 2 H ⁺ (aq] → 2 H ₂O (l]
Further explanationGiven
42.68 ml of 0.43 M KOH
18.40 ml of H2SO4
Required
the concentration of the sulfuric acid
the net ionic equation
Solution
Acid-base titration formula
Ma. Va. na = Mb. Vb. nb
Ma, Mb = acid base concentration
Va, Vb = acid base volume
na, nb = acid base valence
Input the value :
a=KOH, b= H2SO4
0.43 x 42.68 x 1 = Mb x 18.40 x 2
Mb = 0.499 M
The net ionic equation
Reaction
2KOH + H2SO4 → K2SO4 + 2H2O
2 K ⁺ (aq]+ 2 OH ⁻ (aq] + 2 H ⁺ (aq] + SO ₄²⁻(aq] → 2 K ⁺ (aq] + SO ₄²⁻(aq] + 2 H ₂ O (l]
canceled the spectator ions :
2 OH ⁻(aq]+ 2 H ⁺ (aq] → 2 H ₂O (l]
3. Iron + copper sulphate
Will it react
Answers
Answer: Iron displaces copper ions from an aqueous solution of copper sulphate. ... In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).
Explanation:
Help please!! I'll name you brainliest!!
Answers
the answers is cacih2
wjdgagqjdhdgahahdhvddvvsvshsd
H-H-C=C-H-H + Br—Br —> H-H-Br- C-C-H-Br-H
Answers
Answer:
Complexity.
Explanation:
Okay, I am NOT explaining this whole thing, but simply, C2n product.
Don't ask. Just don't.
what is the total number of atoms in 3.0 grams sample of neon?
Answers
The total number of atoms : N = 8.95 x 10²²
Further explanationGiven
3 grams of Neon
Required
The number of atoms
Solution
mol of Neon :
= mass : Ar Neon
= 3 g : 20,1797 g/mol
= 0.1487
The number of atoms :
N = n x No(No=Avogaro's number)
N = 0.1487 x 6.02 x 10²³
N = 8.95 x 10²²
✨✨What’s 2 similarities and 2 differences between the Earths layers and the atmospheric layers? ✨✨
‼️DONT COPY OFF LINE PLEASE ‼️
Answers
Answer:
Differences: Earth's atmosphere has 5 main layers where as atmospheric layers thins out in each higher layer.
Similarities: They both have multiple layers.
Explanation:
Sorry I only have 1 difference and similarity.
Please help (: What are the sources and stages of a river ?
Answers
Water, ALSO if you cant figure out the answer looking up on g00gl3e
3 Stages of a River
YOUTHFUL STAGE (UPPER COURSE) – V- Shaped Valley > Erosion. ...
MATURE STAGE (MIDDLE COURSE) – Meanders > Erosion and Deposition.
OLD AGE STAGE (LOWER COURSE) – Floodplains > Deposition. ...
Advantages. Scenic Attraction. ...
Dangers. Flooding – Damage to property, land, animals and homes. ...
ILL GIVE U BRAINLYSIT
Answers
Answer:what?
Explanation:what? Huh