2 years ago

Complete the following sentence: "During a chemical reaction."

Chemistry

1 answer:

Anastaziya [24]2 years ago

4 0

Answer: a new substance(s) with the same number of atoms as the initial substance(s) is formed

Explanation:

Chemical reaction is a reaction in which there is rearrangement of atoms and thus new substance is formed.

According to the law of conservation of mass, mass can neither be created nor be destroyed in chemical reaction. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

You might be interested in

If you had 100 ml of juice how many milliters would be fruit juice

raketka [301]

The answer would be 1000

8 0

2 years ago

Create the Lewis structure of COCl2 using the following five steps. NOTE: Work only on the currently bolded step below - don't w

slamgirl [31]

M vl hm by tu lord tu checkbook x he

6 0

2 years ago

This investigation is a controlled experiment, so you can change only one variable at a time. Which reactant do you think Koby s

WINSTONCH [101]

Answer:

The baking soda

Explanation:

This is the more reactive part of the experiment. The more baking soda there is (compared to the vinegar), the stronger the reaction.

6 0

2 years ago

A student measures the mass of a 6.0 cm3 block of brown sugar to be 10.0 g. What is the density of the brown sugar?

Alex17521 [72]

Answer:

1.67g/cm3

Explanation:

The formula for density is $d=\frac{m}{v}$ . The m variable stands for mass and the v variable stands for volume.

The mass of the brown sugar is 10.0g and the volume is 6.0cm3, so we can plug those values into the equation.

$d=\frac{10g}{6cm^{3} }$

$d=1.67$ $\frac{g}{cm^{3} }$

Rounded to 3 significant figures, the density of the block of brown sugar is 1.67 g/cm3. If the mass is in grams and the volume is in cm3, the unit for the final answer is $\frac{g}{cm^{3} }$ (grams per centimetres cubed).

8 0

2 years ago

Read 2 more answers

Please help me with chem, it would be very appreciated!

Lelu [443]

To determine the shapes of molecules, we must become acquainted with the Lewis electron dot structure. Although the Lewis theory does not determine the shapes of molecules, it is the first step in predicting shapes of molecules. The Lewis structure helps us identify the bond pairs and the lone pairs.

Please mark BRAINLIEST.

5 0

2 years ago