3 years ago

Which of the following is not a correct chemical equation for a double displacement reaction? (D?)

1 answer:

6 0

The correct answer would be the last option. A double displacement type of reaction involves the switching of places the cations and anions accordingly. The given reaction is erroneous since in the product side the anions and cations are being paired which would not make sense. The correct reaction should be

4NaBr + Co(SO3)2 yields <span>CoBr4 + 2Na2SO3</span>

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As a technician in a large pharmaceutical research firm, you need to produce 300. mL of 1.00 M a phosphate buffer solution of pH

tamaranim1 [39]

Answer: pH = 7.36. The pKa of H2PO4− is 7.21.

Explanation:

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3 years ago

What is the velocity of a wave traveling north with a frequency of 75 hertz and a wavelength of

Vanyuwa [196]

Answer:

v = 450 m/s

Explanation:

Given data:

Frequency = 75 Hz

Wavelength = 6 m

Velocity = ?

Solution:

Velocity is the product of frequency and wavelength.

v = f × λ

v = 75 Hz × 6 m

Hz = s⁻¹

v = 75 s⁻¹ × 6 m

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2 years ago

40 cm3 of acid were mixed with 60 cm3 of alkali in an insulated container. What name is given to this type of reaction?

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Answer:

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1 year ago

Competition occurs when

Katen [24]

Answer:

Competition occurs when <em>(A) two or more organisms need the same resource.</em>

Explanation:

I dont think it could be (B), (C) or (D) because those don't really make sense.

3 0

2 years ago

Breaking down earths surface

tino4ka555 [31]

☁️ Answer ☁️

Thats called weathering.

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth.

Hope it helps.

Have a nice day noona/hyung!~ ￣▽￣❤️

6 0

2 years ago