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Juli2301 [7.4K]
3 years ago
11

True or False? When solid mixed with other solid, it changed in color, size and shape?

Chemistry
1 answer:
sergeinik [125]3 years ago
8 0

Answer:

False

Explanation:

It becomes a heterogeneous mixture

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Susan made observations about outside events she noticed throughout the day. The day began with rain. Susan saw puddles on the r
S_A_V [24]

Answer:

Rainfall - precipitation

disappeared puddles - evaporation

cloud formation - condensation

Explanation:

Rainfall that is observed by the Susan is the precipitation of the water cycle in which the water vapor that was condensed become heavy and form droplets of water and fall from sky to the earth surface.

Puddles that formed due to rainfall are the collection of water in the water cycle which is evaporated (process: evaporation) into the atmosphere n the form of water vapor which condensed to form clouds.

4 0
3 years ago
What is the answer to 2.5 * 22.5
nadya68 [22]
Your answer to 2.5*22.56 is 56.25
4 0
3 years ago
9. Sodium reacts with water to produce sodium hydroxide and hydrogen gas, as shown below.
saveliy_v [14]

Answer:

B

Explanation:

2Na + 2H2O2==NaOh + H2

184/23=x/18

x=(184×18)/23

x=144g

4 0
3 years ago
Which of the following rules should you follow to balance chemical equations?
Firdavs [7]

Answer:

c. add coefficients as needed

Explanation:

A chemical equation is defined as the equation that shows changes in a chemical reaction. A chemical equation consist of reactant and product, reactant is at left side of the arrow and product is at right side of the arrow.

Reactant => Product

While balancing a chemical equation, the basic rule is to balance the coefficient as required. Coefficient represents the number of molecules and is used at front of a chemical symbol. Change in coefficient helps balance the number of atoms or molecules of the substances on both the sides of the arrow.

Subscripts are never allowed to change because it can change the chemical involved in the reaction.

Hence, the correct answer is "c. add coefficients as needed".

3 0
3 years ago
Descuss how to find the oldest paper in a stack of papers
deff fn [24]
It is by looking on the dates of the paper.

Hoped this helped.

~Bob Ross®
8 0
3 years ago
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