Answer:
B) an error occurred, the mass of the reactants should equal the mass of the products.
Explanation:
The answer choices are:
A) no error occurred, some of the products are always lost as heat.
B) an error occurred, the mass of the reactants should equal the mass of the products.
C) an error occurred, the products should weigh more than the reactants.
D) no error occurred, water is not weighed when determining the weight of the products.
Solution
The basis to answer this question is the law of conservation of mass.
Any chemical reaction satisfies the law of conservation of mass: mass cannot be either created nor destroyed, so, always, the mass of the reactants equal the mass of the products.
Thus, since he measured the mass of his reactant materials to be 35g and he reported that his products weighed 32g, his data are in clear contradiction of the law of conservation of mass. So, there is an error in his results: the mass of the reactants should equal the mass of the products.
Answer:
C) a sequence of nucleotides in DNA that codes for a functional product.
Explanation:
Gene -
Gene is a fixed portion present in the chromosome of the cell , which is inbuilt with the hereditary information of the cell .
Genes directs the synthesis of the proteins .
It is basically a sequence of nucleotides present in the DNA .
Hence , from the given options the correct statement for gene is ( c ) .
Penguins and Kangaroos. Kangaroos and penguins can go a long time without food. The adaptations are beneficial to survive
I believe it would be Bone Tissue and Connective Tissue
<h2>1) option is correct </h2>
Explanation:
- Aspirin is contraindicated in a patient who is on oral anticoagulant medication because aspirin intensifies the action of the anticoagulant, which results in bleeding
- Bleeding from shaving cuts may be difficult to control, so the patient should be advised to use an electric razor only
- Patients who are on oral anticoagulant medication have difficulty controlling bleeding from injuries or external hemorrhage
- The nurse should teach the patient techniques such as the application of pressure to control bleeding
- Dental extraction may cause bleeding, which may be uncontrollable for a patient who is on anticoagulant medication, so patients on such type of medication should inform the dentist before starting the treatment
