1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vesna_86 [32]
3 years ago
10

A pile of marbles weigh 394.80 g. 10 marbles weigh37.60 g. How many marbles are in the pile?​

Chemistry
1 answer:
Valentin [98]3 years ago
4 0

Answer:

10=37.60g

???=394.80g

<u>10</u><u>×</u><u>394</u><u>.</u><u>80</u>

37.60

=105marbled

You might be interested in
liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas, and hydrogen gas. be sure
kodGreya [7K]

The liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas and hydrogen gas are

Si{2}Cl{6} (l)  +  4H{2}O (l)  ------ > 2SiO{2} (s)  +    6HCl (g)    +      H{2} (g)

When liquid disilicon hexachloride reacts with water to form solid silicon dioxide , hydrogen chloride gas and hydrogen gas , the following chemical equation is:

Si{2}Cl{6} (l)  +  H{2}O (l)  ------ > SiO{2} (s)  +    HCl (g)    +      H{2} (g)

now , we have to balance the eqaution,

                   Reactants            product

Si                      2                          1

Cl                      6                          1

H                      2                           3

O                      1                            2

Multiply 4 with H{2}O  2 with  SiO{2}  and 6 with HCL, we get

Si{2}Cl{6} (l)  +  4H{2}O (l)  ------ > 2SiO{2} (s)  +    6HCl (g)    +      H{2} (g)

now ,

                  Reactant       Product

Si                     2                   2

Cl                     6                   6

H                      8                   8

O                    4                     4

Thus, we get the desire equtions.

The liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas and hydrogen gas are

Si{2}Cl{6} (l)  +  4H{2}O (l)  ------ > 2SiO{2} (s)  +    6HCl (g)    +      H{2} (g)

To learn more about Chemical equation here

brainly.com/question/28294176

#SPJ4

7 0
1 year ago
According to anthropologists, why did people moved to the Northern Nile River? (Site 1)
balu736 [363]

Answer:

The correct answer is - it provided water, food, transportation, and excellent, fertile soil for growing food.

Explanation:

People of Egypt moved to the northern Nile river due to various reasons. In this region, the soil is very excellent and helps in growing crops as the soil is fertile due to the appropriate climate and water resources.

It is aso helps in selling and transporting the products as it was a trade route at the time. As it is known Egypt has almost no rainfall so the only way crops can get water is through the Nile river.

4 0
3 years ago
If 5.57 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torr of N2 gas at 28 ∘C, and the tube is heated to 310 ∘C, the Ag2
Snezhnost [94]

Answer: Total pressure = 7293.2 torr or 9.60 atm

Explanation:

<em>Total pressure = partial pressure of nitrogen + partial pressure of oxygen</em>

The partial pressure due to nitrogen is determined using the equation of Gay-Lussac's law: <em>P₁/T₁=P₂/T₂</em>

P₁ = 760 torr = 1atm, T₁ = 28∘C = (273+28)K = 301k, P₂ = ?, T₂ = 310∘C =(310+273)K = 583K

P₂ = P₁ T₂/ T₁

P₂ = 760 * 583 / 301 = 1472.03 torr

The pressure due to Oxygen gas produced is calculated thus:

Balanced equation of the decomposition of Ag₂O at s.t.p. is as follows;

2Ag₂O ----> 4Ag + O₂(g)

2 moles of Ag₂O produces 1 mole of O₂

molar mass of Ag₂O = (2*108 + 16)g = 232g/mol

molar volume of gas at s.t.p. = 22.4L

2*232g i.e. 464g of Ag₂O produces 22.4L of O₂

5.57g of Ag₂O will produce 5.57g*22.4L/464g = 0.269L or 269mL of O₂

Using the General gas equation  P₁V₁/T₁=P₂V₂/T₂

P₁ = 1atm = 760 torr, V₁ = 269mL, T₁=273K, P₂ = ?, V₂= 75mL, T₂ = 583K

P₂ = P₁V₁T₂/V₂T₁

P₂ = 760*269*583 / 75*273

P₂ = 5821.17 torr

Total pressure = (1472.03 + 5821.17) torr

Total pressure = 7293.2 torr or 9.60 atm

7 0
3 years ago
6. Which atomic particle has a positive (+) charge?
m_a_m_a [10]

Answer:

lithum

Explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!! WILL GIVE BRAINLY!!!!!!!!
joja [24]

any ecosystem is consisted of biotic and abiotic parts. All living organisms like all types of animals and plants etc. and all other parts like soil, water, rocks, etc. are abiotic parts

3 0
3 years ago
Other questions:
  • Iron reacts with oxygen to produce iron oxide (rust). This reaction is represented in an equation as 4Fe + xO2 → 2Fe2O3. Identif
    10·1 answer
  • What functional groups are present in salicylic acid? aspirin?
    6·2 answers
  • How much protons and electrons does aluminum have
    6·1 answer
  • Identify the element using the Bohr model below.​
    5·1 answer
  • A strong acid can also be described as a very weak .
    12·1 answer
  • Indicate whether each of the following compounds will give an acidic, basic or neutral solution when dissolved in water. Clear A
    7·1 answer
  • The pressure of a compressed gas is 1.45 atm. What is this pressure in kPa
    11·1 answer
  • Why are iron nails attracted to magnets, but not attracted to other iron nails?
    8·2 answers
  • We use many forms of energy every day.<br><br>True or false ​
    14·2 answers
  • Which of the following best describes
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!