3 years ago

Classify each of the following reactions when only the reactants are given and fill in the products.

Chemistry

1 answer:

Nadya [2.5K]3 years ago

3 0

Answer:

CO2 + MgO

Explanation:

We want the number of each element on the Reactants (Left side) to be equal to the number of each element on the Product side (Right side).

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What is the molarity of a solution which contains 0.80 mol of HCl in 250mL of solution?

mariarad [96]

Answer:

3.2M HCl Solution

Explanation:

Molarity = moles of solute / volume of solution expressed in liters

moles of solute = 0.80 moles HCl

volume of solution = 250 ml = 0.250 Liter

Molarity (M) = 0.80 moles HCl / 0.250 Liters = 3.2M HCl Solution

6 0

3 years ago

Will mark BRAINLYIST please help

podryga [215]

1.00mol is the correct answer

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3 years ago

Choose any metal atom from Group 1A, 2A, or 3A. What charge will it adopt when it ionizes?

Ksenya-84 [330]

Answer:

Positive charge.

Explanation:

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In this case, since elements belonging to groups 1A, 2A and 3A are mostly metals, we infer they have the capacity to lose electrons and therefore they become positively charged.

Some examples may be:

$Na^+\\\\H^+\\\\Ca^{2+}\\\\Al^{3+}\\\\Sr^{2+}$

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3 years ago

What are the end products of respiration

Greeley [361]

Respiration:
Glucose + oxygen ----> Carbon dioxide + water (+energy)
C6H12O6 + 6O2 ----> 6CO2 + 6H2O (+energy)

4 0

3 years ago

What is the frequency of a red light with a wavelength of 6.98 x 10^-6

nevsk [136]

Answer:

frequency of light = $4.2\times 10^{-13}$

Explanation:

we know that relation between frequency and wavelength of light is

frequency × wavelength = speed of light.

therefore frequency = $\frac{c}{wavelength}$

= $\frac{3\times 10^{8}}{6.98\times 10^{-6}}$

= $4.2\times 10^{-13}$

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3 years ago