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
kiruha [24]
3 years ago
12

Help NEED THE ANSWER OR HELP PLEASE !!!! 3. What is the mass of 8.0 cm3 of metal A?

Chemistry
1 answer:
Anna35 [415]3 years ago
6 0

Answer:

now this area isn't my expertise so take this with a grain of salt but I believe its about 91125 g

Explanation:

8 cm is about 45g cube that and its 91125 g

You might be interested in
Copper oxide is a: (Multiple Choice)
Triss [41]

Answer:

The answer is 5. Compound

7 0
3 years ago
Read 2 more answers
Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and
Marianna [84]

Answer:

4HCl(g) + O₂(g) →  2Cl₂(g) + 2H₂O(g)

Explanation:

In order to find the equation we should state:

The reactants → Hydrogen chloride (HCl) and oxygen (O₂)

The products → Chlorine gas (Cl₂) and water gas (H₂O)

The balanced equation is:

4HCl + O₂  →  2Cl₂ + 2H₂O

It is a redox reaction, where the oxygen reduces to make water, and the chloride is oxidized to produce elemental chlorine.

7 0
3 years ago
Read 2 more answers
What is the percent composition of dinotrogen pentoxide? With work shown please
iris [78.8K]

Answer:

%N = 25.94%

%O = 74.06%

Explanation:

Step 1: Calculate the mass of nitrogen in 1 mole of N₂O₅

We will multiply the molar mass of N by the number of N atoms in the formula of N₂O₅.

m(N): 2 × 14.01 g = 28.02 g

Step 2: Calculate the mass of oxygen in 1 mole of N₂O₅

We will multiply the molar mass of O by the number of O atoms in the formula of N₂O₅.

m(O): 5 × 16.00 g = 80.00 g

Step 3: Calculate the mass of 1 mole of N₂O₅

We will sum the masses of N and O.

m(N₂O₅) = m(N) + m(O) = 28.02 g + 80.00 g = 108.02 g

Step 4: Calculate the percent composition  of N₂O₅

We will use the following expression.

%Element = m(Element)/m(Compound) × 100%

%N = m(N)/m(N₂O₅) × 100% = 28.02 g/108.02 g × 100% = 25.94%

%O = m(O)/m(N₂O₅) × 100% = 80.00 g/108.02 g × 100% = 74.06%

7 0
2 years ago
ANSWER QUICK
Novosadov [1.4K]

Answer:

1.8

Explanation:

8 0
2 years ago
Read 2 more answers
How does temperature affect the rate of a reaction?
BaLLatris [955]
B, more kinetic energy means more collisions and thus more reactions according to collision theory.
6 0
3 years ago
Other questions:
  • Which of the following is an example of a solution? A. An iron alloy B. Iron metal C. An iron ore D. Iron rust
    11·1 answer
  • The element silver has an atomic weight of 108 and consists of two stable isotopes silver-107 and silver-109. The isotope silver
    6·1 answer
  • _Zn + _HCl _ZnCl2 +_H2 how many grams of HCl would react with 2.99 grams of Zn
    12·1 answer
  • Suppose that a TLC plate is spotted with samples 1.0 cm above the bottom of the plate. Select the consequence of inserting the p
    13·1 answer
  • Does gravity exist without air?
    5·1 answer
  • If there are 40 mol of NBr3 and 48 mol of NaOH, what is the excess reactant
    8·1 answer
  • QUESTION 5<br> Match the symbol with the type of symbiotic relationship it represents
    12·2 answers
  • 1. This is very important in preventing the spread of pathogens in the kitchen.
    9·1 answer
  • How does width affect capillary rise?
    7·1 answer
  • Based on this information, do you think that the mole should be considered a base unit in the Sl system? Explain why or why not.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!