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borishaifa [10]
3 years ago
12

What is the mass of an atom with seven protons, seven neutrons, and seven electrons? Record and bubble in your answer below.

Chemistry
2 answers:
Irina-Kira [14]3 years ago
7 0

Answer:

Mass would be 14 amu

Explanation:

Liono4ka [1.6K]3 years ago
4 0

Answer:

hgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

Explanation:

hfggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

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What does chemistry have to do with drug testing
diamong [38]

Answer:

Forensic drug chemists analyze samples of unknown materials including powders, liquids and stains to determine the chemical identity or characteristics of the compounds that make up the sample. samples submitted as evidence in a drug-related case can contain one compound or a mixture of many compounds.

5 0
3 years ago
ASAP , 8.81 g Carbon
xz_007 [3.2K]

The empirical formula : C₂Cl₇

The molecular formula : C₁₀Cl₃₅

<h3>Further explanation</h3>

Given

8.81 g Carbon

91.2 g Chlorine

Molar Mass: 1362.5 g/mol

Required

The empirical formula and molecular formula

Solution

Mol ratio :

C = 8.81 g : 12.011 g/mol =0.733

Cl = 91.2 g : 35,453 g/mol = 2..572

Divide by 0.733

C : Cl = 1 : 3.5 = 2 : 7

The empirical formula : C₂Cl₇

(The empirical formula)n = the molecular formula

(C₂Cl₇)n = 1362.5

(2x12.011+7x35.453)n=1362.5

(272.193)n=1362.5

n = 5

6 0
3 years ago
When a entire species perishes the species becomes
Andrews [41]
When an entire species perishes the species becomes extinct.
6 0
3 years ago
Read 2 more answers
Covalent bonds result from the complete transfer of an electron from one atom to another. True or false
Fynjy0 [20]
False, covalent bonds result when atoms share electrons.
6 0
3 years ago
A 40.27 g sample of a substance is initially at 24.8 °c. after absorbing 2099 j of heat, the temperature of the substance is 148
Darina [25.2K]
Q = mCΔT
Q is heat in joules, m is mass, C is specific heat, and delta T is change in temp

2099 J = (40.27g)(C)(148.5 - 24.8) = .421 J / gram K
6 0
3 years ago
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