One app named meet here is the link of that come here with the link stnjgsozbq

A solution...

steposvetlana [31]

Answer:

A

Explanation:

8 0

3 years ago

Read 2 more answers

How can the prevailing winds be different during an El Nino year?

ad-work [718]

Answer: During an El Nino year, weakening winds along the equator lead to warming water surface temperatures that lead to further weakening of the winds

3 0

3 years ago

Read 2 more answers

What is the molarity of a solution that contains 122g of MgSO4 n 3.5L of solution?

tatiyna

Answer:

0.29mol/L or 0.29moldm⁻³

Explanation:

Given parameters:

Mass of MgSO₄ = 122g

Volume of solution = 3.5L

Molarity is simply the concentration of substances in a solution.

Molarity = number of moles/ Volume

>>>>To calculate the Molarity of MgSO₄ we find the number of moles using the mass of MgSO₄ given.

Number of moles = mass/ molar mass

Molar mass of MgSO₄:

Atomic masses: Mg = 24g

S = 32g

O = 16g

Molar mass of MgSO₄ = [24 + 32 + (16x4)]g/mol

= (24 + 32 + 64)g/mol

= 120g/mol

Number of moles = 122/120 = 1.02mol

>>>> From the given number of moles we can evaluate the Molarity using this equation:

Molarity = number of moles/ Volume

Molarity of MgSO₄ = 1.02mol/3.5L

= 0.29mol/L

IL = 1dm³

The Molarity of MgSO₄ = 0.29moldm⁻³

6 0

3 years ago

Use the law of conservation of mass to answer the questions.

irinina [24]

Answer:

$\boxed {\boxed {\sf 28 \ grams}}$

Explanation:

The Law of Conservation of Mass states that mass cannot be created or destroyed.

In terms of a chemical reaction, the mass of the reactants has to equal the mass of the products.

The reactants are A and B. The mass of A is 19 grams and the mass of B is 24 grams. Add the masses.

19 g + 24 g= 43 g

This is the mass of the reactants.

The products and C and D. The mass of C is 15 grams. The mass of the products has to equal the mass of the reactants, which is 43 grams. Subtract 15 from 43 to find D's mass.