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andre [41]
3 years ago
7

Can someone please help?

Chemistry
2 answers:
torisob [31]3 years ago
8 0
Density is =mass/volume. Question 3 just divide them. Question 2- same formula but you need calculate the volume. Which is width x length x height= volume
erma4kov [3.2K]3 years ago
4 0

Answer:

On Question 3

Explanation:

try using any type or liquid like water, milk, soda, juice, coffee, tea, beer, or wine or any type and use the following questions by using a measuring cup from the kitchen tooling shelf. Use that to answer the question and see if that helps. <em>your</em><em> </em><em>welcome</em><em> </em><em>btw</em><em> </em>

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URGENT PLEASE HELP
Mariulka [41]

The trend will be such that the time taken for the cross to disappear will be increasing.

<h3>Rate of reactions</h3>

The rate of reactions is affected by the concentration of reactants. The more concentrated the reactants are, the more the rate of the reaction, and vice versa. This is based on the condition that all other factors are kept constant.

In the illustrated reaction, the volume of sodium thiosulfate decreases downward while the volume of water increases. This means that the sodium thiosulfate gets more diluted as we move downward.

Thus, the reaction rate will keep decreasing. In other words, more time would be needed for the cross to disappear as the concentration of sodium thiosulfate decreases.

More on concentration and rate of reactions can be found here: brainly.com/question/13764840

#SPJ1

5 0
2 years ago
What is the satndard used in any measurment
amid [387]
It is expressed in inches,feet,and pounds, centimeters,meters and kilograms in the metric system.(I hope this helps)
7 0
4 years ago
3. Classify each reaction as exothermic or endothermic. (4 marks)
love history [14]

Energy + SO2(g) -----> S(g) + O2(g) is an edothermic reaction owing to te fact that energy is a reactant in the equation.

<h3>What is an endothermic reaction?</h3>

An endothermic reaction is one in  wioch energy is supplied to the system in order to enable the breakdown of bonds. Hence, the reaction vessel feels cool as energy is withdrawn from the surroundings.

The reaction;  Energy + SO2(g) -----> S(g) + O2(g) is an edothermic reaction since energy is a reactant in the equation.

Learn more about endothermic reaction: brainly.com/question/10373907

6 0
3 years ago
2. What is the total number of grams of KCl in 1.00L of 200M solution?
ElenaW [278]

Answer:

83.99 KC1 1.

Explanation:

What is the total number of grams of KCl (formula 2.200M=xmol - 200 mdr o mass = 74.6) in 1.00 liter of 0.200 molar solution? 3941+355 74.69 ml atonal 1.13 mol 174.6g) = 83.99 KC1 1.

7 0
3 years ago
I’ll give Brainliest Faaaaaaast
Bezzdna [24]

Answer:

give me brainliest please?

thank u

Explanation:

8 0
3 years ago
Read 2 more answers
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