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3 years ago

Which of the following compounds is SOLUBLE? A. SrSO4 B. CaCO3 C. BaS D. CaCl2

Chemistry

1 answer:

andriy [413]3 years ago

3 0

Answer:

A).

Strontium Sulphate is soluble

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Write the name for: Mg3O2

sveticcg [70]

Answer:

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2 years ago

Which of the following is a necessary product of a combustion reaction?

BlackZzzverrR [31]

Answer:

Heat

Explanation:

explosions always make heat

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3 years ago

The pressure of an enclosed gas depends on:

Elden [556K]

I think the correct answer from the choices listed above is the last option. The pressure of an enclosed gas depends on the number of molecules in a unit volume and their average kinetic energy, its chemical composition, the altitude about sea level and the number of atoms per molecule. Hope this helps. Have a nice day.

5 0

4 years ago

Read 2 more answers

2 CuCl2 + 4 KI → 2 CuI + 4 KCl + I2

Margaret [11]

Answer: 6.75 moles

Explanation:

This is a simple stoichiometry proboe. that I would set up like this:

(13.5 moles CuCI2) (1 mol I2 / 2 moles CuCi2)

That means you all you have to do for this problem is divide by 2 and cancel out the unit moles CuCI2, which leaves you with 6.75 moles I2.

Hope this helps :)

7 0

3 years ago

If the caterpillar keeps moving at the same speed, how long will it take to travel 6cm?

Solnce55 [7]

It will take 15 s to travel 6 cm

<h3>Further explanation</h3>

Given

distance versus time graph

Required

time travel

Solution

Caterpillar motion is a straight motion with a constant speed, so that the graph between distance and time forms a diagonal line

If we look at the graph, we can determine the time taken when the distance reaches 6 cm (y axis) by drawing a line to the diagonal line and cutting the x-axis as time, and we get 15 s

Or we can also use the formula for motion at constant speed:

d = v x t

With v at point 2,5 of 2/5 m / s, so the time taken:

$\tt t=\dfrac{d}{v}=\dfrac{6}{2/5}=15~s$

4 0

3 years ago