answer.
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
photoshop1234 [79]
2 years ago
9

. If you constructed graphs, what trends do they indicate in your data?

Chemistry
1 answer:
klasskru [66]2 years ago
7 0

Answer:

A linear pattern is a continuous decrease or increase in numbers over time. On a graph, this data appears as a straight line angled diagonally up or down (the angle may be steep or shallow). So the trend either can be upward or downward.

Explanation:

You might be interested in
4. Convert the following: a. 4g mol of MgCl2 to g b. 2 lb mol of C3H8 to g c. 16 g of N2 to lb mol d. 3 lb of C2H6O to g mol
Nuetrik [128]

Answer:

a) 381.2 g

b) 39916 g

c) 0.0013 lb mol

d) 29.6 g mol

Explanation:

The molecular weight (mw) of a compound is the mass of it per mole, so it's the ratio of the mass (m) per mole (n).

a) The molecular weight of one mol is found at the periodic table. So, for Mg, mw = 24.3 g/mol, for Cl = 35.5 g/mol, so for MgCl2, mw = 24.3 + 2*35.5 = 95.3 g/mol. The g mol is the mass divided by the molecular weight:

g mol = m/mw

4 = m/95.3

m = 381.2 g

b) The pound (lb) is a unity of mass, and the lb mol is a unity of the mass divided by the molecular weight. So, by the periodic table, the molecular weight of C3H8 is 3*12 (of C) + 8*1 (of H) = 44 lb/mol.

lb mol = m/mw

2 = m/44

m = 88 lb

1 lb = 453.592 g

So, m = 88*453.592 = 39916 g

c) The molecular weight of N2 is 2*14 (of N) = 28 lb/mol.

m = 16/453.592 = 0.0353 lb

lb mol = m/mw

lb mol = 0.0353/28

lb mol = 0.0013 lb mol

d) The molecular weight is 2*12 (of C) + 6*1(of H) + 1*16(of O) = 46 g/mol

3 lb = 1360.78 g

g mol = m/mw

g mol = 1360.78/46

g mol = 29.6 g mol

6 0
2 years ago
Describe two shortcomings of the pennium model for isotopes
umka21 [38]

let me know when u find out plz because i would like to know as well its one of my chemistry qustions in an assiment. :)

3 0
2 years ago
A gas has a mass of 3.82 g and occupies a volume of 0.854 L. The temperature in the laboratory is 302 K, and the air pressure is
4vir4ik [10]

m = given mass of gas = 3.82 g

M = molar mass of gas = ?

T = temperature of laboratory = 302 K

P = air pressure = 1.04 atm = 1.04 x 101325 pa

V = volume of gas = 0.854 L = 0.854 x 10⁻³ m³

using the ideal gas equation

PV = (m/M) RT

inserting the above values

(1.04 x 101325) (0.854 x 10⁻³) = (3.82/M) (8.314) (302)

M = 106.6 g

hence the molar mass of the gas comes out to be 106.6 g

3 0
2 years ago
An ionic bond results from electrical attraction between
navik [9.2K]

Answer:An ionic bond results from electrical attraction between oppositely charged ions.

Explanation:

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions ( where one ion is positively charged and the other one is negatively charged), and is the primary interaction occurring in ionic compounds.

5 0
2 years ago
A 6.00 g sample of calcium sulfide is found to contain 3.33 g of calcium. what is the percent by mass of sulfur in the compound?
tankabanditka [31]
2.67 is the hsjshkahsjahsgz hi ajahsghsjahaysjs
8 0
2 years ago
Other questions:
  • What is the advantage of having large vertebrae at the base of the vertebral column?
    14·1 answer
  • What is the molarity of 4.35 moles kmno4 dissolved in 750 ml of solution?
    15·1 answer
  • How many cycles of the synthesis pathway are needed to produce myristic acid, c13h27cooh?
    7·1 answer
  • The lewis structure of pf3 shows that the central phosphorus atom has ________ nonbonding and ________ bonding electron pair(s)
    11·2 answers
  • Josh is studying pH calculations and tests a basic solution with a pH meter. He finds that the solution has a pH equal to 9.2. W
    15·1 answer
  • Describe how you would prepare approximately 2 l of 0.050 0 m boric acid, b(oh)3.
    12·1 answer
  • During metamorphic processes, increased pressure and temperature can affect the _______ of minerals in rock. Rocks subjected to
    13·2 answers
  • A student runs an experiment in the lab and then uses the data to prepare an Arrhenius plot of the natural log of the rate const
    13·1 answer
  • How much water(in grams) at its boiling point can be vaporized by adding 1.50 kJ of heat? The molar heat of vaporization for wat
    9·1 answer
  • A white powder is known to be a mixture of magnesium oxide and aluminum oxide. 100cm3 of 2moldm-3 NaOH(aq) is just sufficient to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!