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sergey [27]
3 years ago
15

Activity 2 Directions: Select among the choices thbest type of material to be used in making the objects at the left and explain

our answers. Write your answers in a separate sheet of paper. Translucent Transparent Opaque
QUICK ANSWER PLEASE







​

Chemistry
1 answer:
joja [24]3 years ago
3 0

Answer:

A Walk in the City

Make a list of the number of cars, jeeps, tricycle, and even trucks you've seen on your way to school. On a Decision Making Chart, answer the question, "Does the volume of traffic affect the air quality in my local community?" Write your reasons for saying YES on the Reasons for column, and the reasons for saying NO on the Reasons Against column. At the bottom of a chart, make a position by writing your decision on the same question.

Decision Making Chart

[question]

[reason for]

[reason against]

[my decision]

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An element's atomic number is 63. How many protons would an atom of this element have?
lyudmila [28]
Atomic number of an element correlates to the number of protons an atom of that element will have. An atom of this element would have 63 protons.
8 0
3 years ago
A 20.0 ml sample of glycerol has a mass of 25.2 grams. What is the mass of 63 ml sample of glycerol?
poizon [28]

The mass of 63 ml sample : 79.38 g

<h3>Further explanation</h3>

Given

20 ml and 25.2 g of glycerol

Required

The mass of 63 ml sample

Solution

Density is the ratio of mass per unit volume

Density formula:

\large{\boxed {\bold {\rho~=~ \frac {m} {V}}}}

Density of glycerol :

= m : V

= 25.2 g : 20 ml

= 1.26 g/ml

Mass of 63 ml sample :

= density x volume

= 1.26 g/ml x 63 ml

= 79.38 g

7 0
3 years ago
Science 9- Bohr models worksheet
icang [17]

Answer:

What do u mean

Explanation:

6 0
4 years ago
A 2.5-liter sample of a gas has 0.30 mole of the gas. If 0.15 mole of the gas is added, what is the final volume of the gas? Tem
enot [183]

Answer:

1.125

Explanation:

I think it is his because if you add 0.30 and 0.15 it adds up to 0.45 so you just multiply 0.45 and 2.5 and then it gives you 1.125. HOPE IT HELPS.

4 0
3 years ago
N each reaction box, place the best reagent or reactant from the list below. reagents may be used more than once or not at all.
Ne4ueva [31]

Answer:

See explaination

Explanation:

See attachment for the drawing of the intermediate products b and c (both are neutral; omit byproducts).

7 0
4 years ago
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