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
jasenka [17]
4 years ago
10

Density is the _____ of a certain ______

Chemistry
1 answer:
olga2289 [7]4 years ago
3 0
I think the first blank is "solidity" and second is "object."
You might be interested in
Photosynthesis occurs. How do plants get the carbon dioxide they need for photosynthesis?
igomit [66]
Why wouldn’t that make a difference, hola mi, polo el coron
7 0
3 years ago
Read 2 more answers
In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The hy
vovangra [49]

Answer:

iron = 15000 kg 95% sulfuric acid = 27646.32 kg

Explanation:

The molar volume to a gas is 22.4 L, which means that a mole of a given gas at 0°C and 1 atm will have a volume os 22.4 L.

1 m3 - 1000 L

4870 m3 - x

x = 4870 * 1000 = 4.87 *10^6 L

1 mole - 22.4 L

y mole - 4.87 * 10^6 L

y = \frac{4.87 * 10^6}{22.4} = 2,17 *10^5 moles (if 100% of the H2 is used)

as 20% of it is lost, we need to know how much more we need to use.

80% - 2.17 * 10^5 moles

100% - z

z = \frac{2.17* 10^7}{80} = 2,68*10^5 moles

so we would need 2.68*10^5 moles of iron and sulfuric acid.

1 mole of iron - 56 *10^-3 kg

2.68*10^5 moles - t

t= 2.68*56 *10^2 = 15000 kg

1 mole of sulfuric acid - 98 * 10^-3 kg

2.68*10^5 - u

u = 2.68*98 *10^2 = 26264 kg (if 100%)

95% - 26264 kg

100% - v

v = \frac{26264 * 100}{95} = 27646.32 kg

6 0
3 years ago
(a) How many elements of unsaturation are implied by the molecular formula C₅H₅N? A) 0 B) 1 C) 2 D) 3 E) 4 (b) What two atomic o
lana [24]

Answer:

(a) OPTION E=4

b) option E C sp² + C p

Explanation:

DEGREE OF UNSATURATION = C -H/2 -X/2 +N/2 +1

X IS HALOGENS

5-5/2+1/2+1=  4

b) Ethene comprises of two sp2-hybridized carbon atoms (bound to each other by sigma and two atoms each with hydrogen). The remaining unhybridized carbon p orbitals form a pi bond, giving ethene reactivity

6 0
3 years ago
How many moles of Hcl can be produced from 1.21 moles of zn?
Gre4nikov [31]

Answer:

2 moles

Explanation:

5 0
3 years ago
Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O).
Sindrei [870]
Oxen beacon is great for your self halllway
7 0
3 years ago
Other questions:
  • Is gold amalgamation a chemical reaction with gold and mercury?
    8·1 answer
  • _______ is how strongly gravity pulls on an object
    15·1 answer
  • The following reaction is exothermic. C6H12O6(s)+6O2(g)⇌6CO2(g)+6H2O(g)C6H12O6(s)+6O2(g)⇌6CO2(g)+6H2O(g) Predict the effect (shi
    11·2 answers
  • The ____ is found on the right side of the arrow in a chemical reaction
    6·1 answer
  • Is this statement true or false? Why?
    15·2 answers
  • Cole ate grass and ______while lying after attack.
    8·2 answers
  • A hydrate of zinc chlorate, Zn(CIO3)2·XH20, contains 21.5% zinc by mass. Find the value of X.
    11·1 answer
  • Which of the following contains the most atoms?
    6·1 answer
  • Which of the following is a limitation of Bohr's model?
    14·1 answer
  • Ubstance Y has a heat of fusion of 3.5 KJ/g. How much
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!