A substance is silvery-gray in color. Choose the appropriate classification from the response list below: a) could be an element or a compound b) could be an element but not a compound c) could be a compound but not an element d) could not be an element nor a compound The correct answer and explanation […]

Cushman Company had $824,000 in sales, sales discounts of $12,360, sales returns and allowances of $18,540, cost of goods sold of $391,400, and $283,455 in operating expenses. Gross profit equals:Multiple ChoiceA $793,100.B $118,245.C $401,700.D $414,060.E $420,240. The correct answer and explanation is : Let’s work through it carefully: Step 1: Calculate Net SalesNet Sales =

What is the average speed of a cheetah that runs 88 m in 5 seconds? a) In m/sb) In miles/hour (recall conversion factors 1 m = 3.3 feet, 5280 ft = 1 mi, 3600 s = 1 hour) The correct answer and explanation is : Let’s solve it carefully: First: Find the average speed in

Draw structural formulas for the following compounds: (a) 2-Methylheptane (b) 4-Ethyl-2-methylhexane (c) 4-Ethyl-3,4-dimethyloctane (d) 2,4,4-Trimethylheptane (e) 1,1-Dimethylcyclopentane (f) 4-Isopropyl-3-methylheptane The correct answer and explanation is : Sure! Let’s work through drawing the structural formulas and then I’ll give you the full explanation (around 300 words): (a) 2-Methylheptane Structure: (b) 4-Ethyl-2-methylhexane Structure: (c) 4-Ethyl-3,4-dimethyloctane Structure: (d)

Give the classification of matter when two substances are present with heteroatomic molecules. a) heterogeneous mixture b) homogeneous mixture c) compound d) element The correct answer and explanation is : The correct answer is: a) heterogeneous mixture Detailed Explanation: Matter can be classified based on its composition and uniformity into different categories: elements, compounds, homogeneous

Give the classification of matter when two substances exist with two phases present and the substance cannot be decomposed by chemical means. a) heterogeneous mixture b) homogeneous mixture c) compound d) element The correct answer and explanation is : The correct answer is: d) element. Detailed Explanation: To classify matter correctly, it’s important to understand

What is the best definition for mineral nutrients? A) Inorganic substances required for lifeB) Organic substances required for lifeC) Micronutrient substances required for lifeD) Macronutrient substances required for life The correct answer and explanation is : The correct answer is: A) Inorganic substances required for life Explanation: Mineral nutrients are substances essential for the growth,

Give the classification of matter when two substances exist with one phase present. a) heterogeneous mixture b) homogeneous mixture c) compound d) element The correct answer and explanation is : The correct answer is: b) homogeneous mixture Explanation: In chemistry, matter is anything that has mass and occupies space. It can be classified based on

Cardiovascular System: Blood Vessels Art-Labeling ActivityThe big picture of systemic blood flow in the body. Drag the appropriate labels to their respective targets. Capillary beds of the head, neck and faceCommon carotid arteryInternal jugular veinHepatic portal veinCapillary beds of the upper limbExternal iliac artery and veinDescending aortaInferior vena cavaCapillary beds of the liver and hepatic

Give the classification of matter when two substances exist with two phases present. a) heterogeneous mixture b) homogeneous mixture c) compound d) element The correct answer and explanation is : The correct answer is a) heterogeneous mixture. Explanation: Matter can be classified based on its composition and the number of phases it exhibits. A “phase”