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
kenny6666 [7]
3 years ago
9

Which change might cause a cold spell in the northern united states

Chemistry
2 answers:
Andru [333]3 years ago
7 0
Jet Stream are narrow bands of strong winds from the upper levels of the atmosphere and its location depends from year to year. It follows the boundaries hot and cold air so technically it takes the heat with it wherever it travels:from north to south.
julia-pushkina [17]3 years ago
6 0

Answer:B. The polar jet stream moves south

Explanation:

You might be interested in
Can someone please help me with my chem final!!
scoundrel [369]

Answer:

direct

Explanation:

the more dense it is the more pressure it will exert

6 0
2 years ago
IF UR GOOD AT CHEM PLZ ANSWER MY PREVIOUS QUESTIONS ON MY PROFILE, I NEED HELP!!
erastova [34]

Answer:

Ok, I'll try

Explanation:

7 0
2 years ago
Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as aspirin. A typical aspirin tablet, however, contains only a
pashok25 [27]

Answer:

6 grains

Explanation:

The equation of the reaction between NaOH and aspirin is;

C9H8O4(aq) + NaOH (aq) ------>C9H7O4Na(aq) + H2O(l)

Amount of NaOH reacted = concentration × volume = 0.1466 M × 14.40/1000 L = 2.11 × 10^-3 moles

Given that aspirin and NaOH react in a mole ratio of 1:1 from the balanced reaction equation above, the number of moles of aspirin reacted is 2.11 × 10^-3 moles

Hence mass of aspirin reacted = 2.11 × 10^-3 moles × 180.2 g/mol = 0.38 g

If 1 grain = 0.0648 g

x grains = 0.38 g

x= 0.38 g/0.0648 g

x= 6 grains

3 0
3 years ago
What is the molarity (M) of the following solutions?
Dennis_Churaev [7]

Answer:

The molarity (M) of the following solutions are :

A. M = 0.88 M

B. M = 0.76 M

Explanation:

A. Molarity (M) of 19.2 g of Al(OH)3 dissolved in water to make 280 mL of solution.

Molar mass of Al(OH)3 = Mass of Al + 3(mass of O + mass of H)

                                      = 27 + 3(16 + 1)

                                      = 27 + 3(17) = 27 + 51

                                      = 78 g/mole

Al(OH)_3 = 78 g/mole

Given mass= 19.2 g/mole

Mole = \frac{Given\ mass}{Molar\ mass}

Mole = \frac{19.2}{78}

Moles = 0.246

Molarity = \frac{Moles\ of\ solute}{Volume\ of\ solution(L)}

Volume = 280 mL = 0.280 L

Molarity = \frac{0.246}{0.280)}

Molarity  = 0.879 M

Molarity  = 0.88 M

B .The molarity (M) of a 2.6 L solution made with 235.9 g of KBr​

Molar mass of KBr = 119 g/mole

Given mass = 235.9 g

Mole = \frac{235.9}{119}

Moles = 1.98

Volume = 2.6 L

Molarity = \frac{Moles\ of\ solute}{Volume\ of\ solution(L)}

Molarity = \frac{1.98}{2.6)}

Molarity = 0.762 M

Molarity = 0.76 M

4 0
3 years ago
What is the name of a compound that has the formula C6H6
cricket20 [7]
Benzene is the compound name and it is a covalent compound
8 0
3 years ago
Other questions:
  • What is melted rock and minerals found beneath Earth's crust called?
    14·2 answers
  • Write the equation for the production of one hexose sugar molecule from carbon dioxide
    5·2 answers
  • In general, what makes one kind of amino acid different from other amino acids?
    11·1 answer
  • Describe how you can prove that a bicycle is matter
    7·1 answer
  • What is the mass in milligrams of 4.30 moles of sodium? use significant figures?
    5·1 answer
  • Write a balanced chemical equation, including physical state symbols, for the decomposition of solid calcium carbonate (CaCO₃) i
    5·1 answer
  • How to combine elements to make compounds?
    13·1 answer
  • Which statements would be expected to be true for Organesson? Select all that apply.
    11·1 answer
  • What is baking soda chemically known as ? Excessive use of chemical
    8·2 answers
  • ¿que fuerza de debera aplicar en un embolo pequeño de una prensa hidraulica de 12cm2 de area ,para levantar un cuerpo de 70000N
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!