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SpyIntel [72]
2 years ago
12

HELP. ME!!!!!!!!!!!!!!!

Chemistry
2 answers:
Nastasia [14]2 years ago
7 0
It is CO2 because the oxygen compounds is 2 out of three.
Dmitry [639]2 years ago
4 0
A)CO2!! Hope this helps
You might be interested in
1.Salts consist of atomic particles that have an (blank) charge.
enyata [817]
The nonmetal elements have a negative charge.
5 0
3 years ago
What is the molarity of a solution in which 175.8<br> grams of NaCl is dissolved in 1.5 L of water?
Sophie [7]
175.8 g NaCl to moles:
(175.8 g)/(58.44 g/mol) = 3.008 mol NaCl

Molarity = moles of solute/volume of solution in liters

(3.008 mol NaCl)/(1.5 L) = 2.0 M.

The molarity of this solution would be 2.0 M.
8 0
2 years ago
Help on both please and thanks
Mamont248 [21]

Answer:

1. Granite

2. 535.5J

Explanation:

1. The lower the specific heat capacity of a substance, which is the amount of heat needed to raise the temperature of a particular mass of substance by 1 °C or K, the slower the rate at which the temperature is raised.

In this question 1, the substance with the lowest specific heat capacity in J/gK is GRANITE, hence, it will raise temperature the slowest.

2. Using the formula as follows:

Q = m × c × ∆T

Where;

c = specific heat capacity

Q = amount of heat (J)

m = mass of substance

∆T = change in temperature (°C)

m = 35g, c = 0.45 J/g°C, ∆T = 54°C - 20°C = 34°C

Q = 35 × 0.45 × 34

Q = 535.5J

7 0
2 years ago
(05.01 LC)
pav-90 [236]
The answer to your question is A.
7 0
3 years ago
Is oxygen an element or a compound? Explain.
Margarita [4]
<h3><u>Answer;</u></h3>

Element

<h3><u>Explanation;</u></h3>

Oxygen is an element and not a compound.

Elements are substances that can't be split into simpler substances by chemical means. They include, hydrogen, oxygen, sodium, etc.

Compounds are substances that are made up of two or more elements e.g. water is a compound, since it is made up of oxygen and hydrogen element. Compounds unlike elements can be split into simpler substances by chemical means.

3 0
2 years ago
Read 2 more answers
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